P0430 jeep code

P0158 is an OBDII code that occurs in many vehicles, including the Jeep Wrangler. The code is triggered when: The voltage at the O2 sensor remains above threshold for 20 seconds or more. Voltage to the sensor is to high (wiring problem, think short) Bad O2 sensor itself. There are also some less likely problems that can cause P0158.

P0430 jeep code. First, use a scan tool with live data to check for high long term fuel trims. If long term fuel trims are excessively high, like 25% or more, the computer is flooding the engine with fuel and most of that fuel is loading the catalytic converter and causing the P0420 or P0430. If you find a high LT fuel trim, find the root cause and fix it.

Catalyst System Efficiency Below Threshold (Bank 1) is the meaning of the P0420 code. This code indicates that Catalyst System Efficiency (Bank 2) is below the threshold (P0430). The number one cylinder is located on the bank 1 side of the engine. In Bank 2, you will find the opposite side of the engine. P0420 and P0430 both showed up and are ...

2008 Jeep Grand Cherokee 4.7 I have 2 codes p0430 and p0420 for both cats but it doesn't say if it's the upstream or - Answered by a verified Jeep Mechanic ... 2005 jeep libert3.7 p0430 cat efficiency below threshold bank 2 p2098 downstream fuel trim lean bank 2 changed bank 2 cat as well as bank 2 sensor 2, ...It's an 05 sport with 62k on it. I had the jeep dealer I work for do the changing of the o2 sensors, same price if i bought one at the store. They said both are now replaced, not 100% sure what that means. They did clear the code and I drove around 350 miles before it came back on.Check for exhaust leaks and correct as needed. Test the compression on each cylinder to rule out any possible internal engine issues. If none of that clears the codes, …Read more at: OBD-II Trouble Code: P0430 Catalyst Efficiency Below Threshold (Bank 2) P0633 - Skim Secret Key Not Stored In PCM. Possible causes: Secret Key code failed to transfer to Powertrain Control Module (PCM) High or low battery voltage. No communication with Body Control Module (BCM)Messages: 7. Gender: Male. 2010 JKU. 3.5" lift, 35s. My 2010 3.8 keeps throwing the cam sensor code P0340 with the traction control light with limp mode. I've cleaned connections on the harness for the cam, air, and coolant sensor. Wiring looks OK to me other than the tightness of it and exposure where the brittle plastic loom disintegrated.January 30, 2023 by Jason. P0300 is a generic OBDII code that can occur with the Jeep Grand Cherokee. This code indicates that your vehicle's engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring).I changed the oil, oil filter, air filter, both diff's, transfer case and dropped the tranny pan and changed the tranny filter as well. Also changed the plugs and boots. Now I have gotten the P0430 code. I checked both cats with my handheld temp gauge. Drivers side in temp was roughly 316-320,out temp was 330-340ish.

While the most common causes of the P0430 code are a faulty catalytic converter and faulty O2 sensor, P0430 can also be caused by other issues: A catalyst defect due to aging. Malfunctioning oxygen sensor (lambda sensor) circuits. A faulty front and/or rear lambda sensor. Damaged lambda sensor wiring. Leakage of mass airflow sensor.Sep 30, 2018 · This page is meant to help you troubleshoot the Jeep Commander P0430 trouble code. It covers the P0430 code’s meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents MeanGreenZJ. 1708 posts · Joined 2011. #9 · Feb 2, 2012. My guess is that the P0430 code is triggered by the P2098 code. Which points to a failed 02 sensor or circuit, exhaust leak or mechanical issues. Or as said above a flash update issue.816 posts · Joined 2012. #2 · Feb 12, 2013. do a search for "P0430". JFD328. 2012 Jeep Grand Cherokee Limited Maximum Steel Metallic. 5.7L V8 HEMI, 4X4, 730 RHR, Panoramic Sunroof, Husky Floor Liners, SRT pedal kit + E-Brake, Red BT CC, Sharkfin antenna, Mopar CAI.Ron on that 2002 jeep liberty with injector circuit/open#2 I change the injector run the same but code gone but when iwent to read problems all these codes came up PO201#3,#1,po500,popo352-B,A,C,E 035 … read moreDecember 6, 2021 by Jason. P0846 is a relatively common trouble code. While your Jeep Wrangler’s check engine light will come on, P0846 is a transmission-related trouble code, specifically the transmission fluid pressure sensor circuit. It’s a generic code, so P0846 has the same definition for any vehicle made for the 1996 model year and up.

May 24, 2021 · P0430 CODE: Catalyst System Efficiency Below Threshold (Bank 2) 01/02/2020 by JamesL Davis. The P0430 is a check engine light code that shows that the efficiency and performance of your catalytic converter are less than the required threshold. This means that every time you turn on your vehicle, you’re adding more pollution to the environment ... NOTE:Check for contaminants that may have damaged the O2 Sensor and Catalytic Converter: contaminated fuel, unapproved silicone, oil and coolant, repair necessary. 1.Start the engine.2.Allow the engine to reach normal operating temperature.3.With a scan tool, select View DTCs.P0456 and P0457 codes were pulled then cleared. Replaced Gascap with OEM, Factory cap. Immediately the same 3 symptoms came back on. Traced lines all the way, smoked the lines from the white Evap module back to the filler (let out smoke from what I assume was a vent at the end of the filler module) Smoked out the other line heading towards the ...This page is meant to help you troubleshoot the Mercury Mountaineer P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents

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Jeep wrangler pavement ends tops cap diamond sun replacement Jeep tops by pavement ends for 2013 wrangler Wrangler jeep p0304 code misfire obd2 trouble relatively ...Oct 21, 2020 · =====Claim your FREE error code eraser 👉 https://free.nonda.co 👈== How to Fix P0430 Error Code ====Error Code P0430 Saving Repair ... December 6, 2021 by Jason. P0846 is a relatively common trouble code. While your Jeep Wrangler's check engine light will come on, P0846 is a transmission-related trouble code, specifically the transmission fluid pressure sensor circuit. It's a generic code, so P0846 has the same definition for any vehicle made for the 1996 model year and up.P0158 is an OBDII code that occurs in many vehicles, including the Jeep Wrangler. The code is triggered when: The voltage at the O2 sensor remains above threshold for 20 seconds or more. Voltage to the sensor is to high (wiring problem, think short) Bad O2 sensor itself. There are also some less likely problems that can cause P0158.If your OBD-II scanner indicates a code P0457, address the issue with the help of this comprehensive guide. What Does the P0457 Code Mean? Diagnostic trouble code (DTC) P0457 stands for "Evaporative Emission System Leak Detected (Fuel Cap Loose/Off)." The code indicates that your car's primary computer, which is often referred to as the powertrain control module (PCM), has detected a ...Code P0430 indicates that the catalytic converter is not functioning efficiently, therefore increasing the output of harmful pollutants by the vehicle. P0430 Causes. Faulty oxygen sensor. Faulty air-fuel sensor. Worn or internally failing catalytic converter (Most Common) A leak in the exhaust system. Misfire (the root cause of converter failure)

P0431 is a standard OBDII trouble code, which means that it has the same meaning for the Jeep Wrangler as it would any other vehicle. It is closely related to P0430 (which is one of the most popular OBDII codes).. Warm Up Catalyst Efficiency → Below Threshold (Bank 2) When it’s the only trouble code present, P0431 will typically not …By the way, this code is extremely similar to code P0420 - which means essentially the same thing, just for the catalytic converter on the other bank of cylinders. What does DTC P0430 mean on a Jeep Cherokee? OBD Code P0430 is a generic OBD II Code - meaning that it applies to every applicable vehicle manufactured since the year 1996.=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈== How to Fix P0420 =====Engine Code P0420 Saving Repair Part...Catalyst System Code P0430 Help! I'm driving a 2006 Jeep Commander 3.7L and I had this code come up a few weeks ago and it has remained. After some research, it seems that the problem could be a faulty O2 sensor, which I would prefer to try before changing out the Cat. My issue is I can't nail down which O2 sensor I would need to replace.See full list on 700r4transmissionhq.com The P0430 Diagnostic Trouble Code (DTC) is your car's way of telling you that its catalytic converter efficiency for bank 2 has dipped below what's acceptable. Sitting snugly near engine bank 2, if your vehicle’s catalytic converter starts slacking off, due to age, deuteriation, or contaminant build-up, it won’t scrub those exhaust fumes as ...P0430 Code. Jump to Latest ... Usually with a P0420, or P0430, you're going to need to replace cats, something that autozone can probably sell, but beyond the abilities and budgets of most of their customers. Hence, they will sell snake oil in a can. ... A forum community dedicated to all jeep owners and enthusiasts. Come join the discussion ...Catalyst System Efficiency Below Threshold (Bank 1) is the meaning of the P0420 code. This code indicates that Catalyst System Efficiency (Bank 2) is below the threshold (P0430). The number one cylinder is located on the bank 1 side of the engine. In Bank 2, you will find the opposite side of the engine. P0420 and P0430 both showed up …Ign coil, etc. - Vacuum leaks. - Restricted Air Induction system or Exhaust system. -------------. Based on what appears to be a consistent P0306 I would think that my last two things to check are intake manifold leak and the valves as the other problems would seem to cause other misfires or P0300s.The most common fix for P0430 in the Nissan Altima is a new catalytic converter, followed by replacing the Oxygen sensor. Before taking your Altima into an exhaust shop for a new catalytic converter, let's ensure that's what you need. Here's a good P0430 diagnostic order for the Nissan Altima: 1. Check for Other Codes.

Fix for P0455, P0456 code on Jeep, Dodge. If your build date and VIN matches what's listed above, replace the parts shown below with updated Chrysler parts. 68189065AD Hose, Purge Valve for 5.7 EZH engine. 68189075AE Hose, Purge Valve for 3.6 ERB engine".

If you are seeing P0300, that's a random misfire. Usual causes are bad spark plugs or possibly a faulty Cam position sensor or crank position sensor. P0430 means that you have Catalyst System Low Efficiency Bank 2. This is specific to one catalytic converter. Taken together, you have a bad catalytic converter that is causing the misfire code ...We just bought a 2005 Grand Cherokee less than two weeks ago, 95k miles, pretty good shape. After driving around some in this snowstorm the engine trouble light came on. I got the code at AutoZone: P0430 catalytic converter. According to the CarFax the dealer replaced the catalytic...Mar 28, 2023 · A leaking fuel injector or leaking head gasket can be the culprit of a P0430 fault code. Therefore, ensure to extend the diagnosis to every probable cause. How do you fix P0430? Since there are several causes of a P0430 code on Jeep Grand Cherokee and other car models, there are also several probable solutions to the problem. P0430 CODE: Catalyst System Efficiency Below Threshold (Bank 2) 01/02/2020 by JamesL Davis. The P0430 is a check engine light code that shows that the efficiency and performance of your catalytic converter are less than the required threshold. This means that every time you turn on your vehicle, you’re adding more pollution to the environment ...Sep 1, 2023 8:12 PM EDT. Catalytic converter. Kim2480 via Wikimedia Commons (CC BY-SA 3.0) Check Engine Light Codes P0420 and P0430. Replacing a catalytic converter or "cat" has become a big, expensive drain on a lot of people's budgets these days. I want to share some information about what's happening here with emissions testing and some …So P0153 is "O2 Sensor 2/1 slow response. And P0430 is catalyst efficiency (bank 2). Its fairly obvious right off the back that the issue is with the passenger side exhaust (bank 2) in both codes. I have read that its probably either a bad O2 sensor (hence code P0153 which is saying that the first sensor on the passenger side bank 2 is …P0153 P0430 Assistance please ***REPAIRED - SEE LAST POST*** Hello all, I have an 08 Commander 5.7L with a P0153 and occasional P0430 code. One code or both codes will come on after about 30 minutes of driving. Milage is 97000, outside of any warranty. I replaced Bank 2 Sensor 1 O2 Sensor - Code returned. Dealer replaced Bank 2 Sensor 1 O2 Sensor.

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Stubborn P0456 and P0457 Codes. I'm kind of at the end of my rope here. Been chasing these codes for months now. I started with the obvious and replaced the gas cap with a new one from the dealer and it still came back. I replaced the purge solenoid and leak detection pump and still came back.If you have a Jeep Wrangler and are getting a P0430 error code, there is a problem with a catalytic converter not operating to efficiency. The official definition is a “PO430: Catalyst System Efficiency Below Threshold (Bank 2)“. Several things can cause this error, including Oxygen Sensor, Exhaust Leak, and Catalytic Converter.First off I do not believe this method works for the 1998 Jeep Grand Cherokee, or the 98 ZJ. ... P0430 Catalyst System Low Efficiency Bank 2 P0431 Warm Up Catalyst Efficiency Below Threshold (Bank 2) ... P1700 - Transmission Control Module (TCM) problem - this means there is a proprietary code stuck in there, set by the transmission computer ...Check the connections on your catalitic converter first as it was a leak on mine when I got the P0430 code. nyrangersfan19 said: More than likely the guy at the autoparts store really doesn ... A forum community dedicated to all jeep owners and enthusiasts. Come join the discussion about performance, engine swaps, modifications, classifieds ...Again, $7E8 & $7E9 are not engine codes. A basic OBD2 scan tool offers a few different modes (from 1 to 10) to perform particular tasks on your cars. In this case, $7 represents mode 7, which basically means diagnostic code request. E8 (or E9) indicates that you request fault codes from module E8 (or E9). In conclusion: What you have to do when ...So, you’ve encountered the P0430 code on your vehicle’s dashboard, indicating a potential issue with the catalytic converter’s efficiency in bank 2. You may be wondering if there’s a way to clear this code manually. The answer is yes; you can clear the P0430 code yourself with a few simple steps.jeep; p0430; code; wrangler +1 vote. 2 answers 404 views. 2008 Jeep Wrangler Sahara with code P0404, where is it located on the engine? asked Jul 31, 2017 by anonymous. jeep; wrangler; p0404 +1 vote. 2 answers 1.7k views. 2004 Jeep Wrangler 6 Cyl with engine code P0136, how do I repair this? asked Feb 19, 2017 by Michael. p0136; jeep;This page is meant to help you troubleshoot the Acura MDX P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents ….

816 posts · Joined 2012. #2 · Feb 12, 2013. do a search for "P0430". JFD328. 2012 Jeep Grand Cherokee Limited Maximum Steel Metallic. 5.7L V8 HEMI, 4X4, 730 RHR, Panoramic Sunroof, Husky Floor Liners, SRT pedal kit + E-Brake, Red BT CC, Sharkfin antenna, Mopar CAI.This page is meant to help you troubleshoot the Ford Fusion P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of ContentsP0420 Catalyst Efficiency (bank 1) Code. 2007 JKU with 70K miles threw the P0420 engine code this morning on the way to work. Thought it might be related to the recent TSB I had completed for the gas fill-up overflow issue but alas it's not. Doing some research and I found some posts that stated the federal emissions warranty should cover any ...The Jeep Grand Cherokee is one of the most iconic vehicles on the road today. For decades, it has been a symbol of adventure and freedom, and now it’s getting an all-new makeover f...This page is meant to help you troubleshoot the Dodge Ram P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of ContentsJeep P0456, P0457 — What to check first if you get these codes. A Jeep P0456 is defined as an EVAP PURGE SYSTEM SMALL LEAK, while a Jeep P0457 is defined as a LOOSE FUEL CAP. Step by step procedure to diagnose Jeep P0456 trouble codes Check for leak in the purge hose and purge valve.May 25, 2020 · P0420 and P0430. Hey everyone, getting these two codes on my 05 grand Cherokee 4.7L. Could possibly be both 02 sensors, a leak in the exhaust or a bad cat converter. Anyone dealt with this problem before? Does Cataclean really fix a P0420 / P0430 error code and catalytic converter. Cataclean Link: https://amzn.to/33t8RVQ Second channel for easy to follow Home ...The P0058 code is logged when the powertrain control module (PCM) detects a problem with the heater circuit of the oxygen sensor 2 on engine bank 2, such as a higher-than-normal voltage signal. Common causes of the P0058 code are oxygen sensor failure, wiring issues, and PCM failure. A vehicle that sets a P0058 code can show symptoms like an ...Hi everyone, I was driving home this weekend and check engine light came on. Was P0430 code. I was wondering what the best way to approach this was. It’s a 2007 jeep wk just shy of 109k miles on it. I just went to the store and picked up some cataclean for it but wondering if I should use seafoam instead? P0430 jeep code, Jun 23, 2022 · Check Engine Light and P0420 and P0430 Codes. So, your Check Engine light is on, and you’ve got either a P0420 or P0430 code, on your OBD-II scanner. This “Catalyst system efficiency below threshold” code is triggered when your car’s computer (the powertrain or engine control module (PCM or ECM)) detects a catalytic converter issue. 1A ... , This page is meant to help you troubleshoot the Acura MDX P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents, p0430; code; jeep; bank2; 1 Answer. 0 votes . answered Aug 20, 2016 by Carguy1 (12.6k points) Hi there, This code P0430 is for the bank 2 catalyst below threshold. ... Hi there, This code P0430 is for the bank 2 catalyst below threshold. This means the converter on bank 2 isn't working properly. If it is completely plugged it can prevent the ..., February 19, 2019 by Jason. P0403 is a very common trouble code. It is a generic code, which means that it has the same meaning for the Jeep Wrangler as it would any other vehicle. It affects the EGR (Exhaust Gas Recirculation System and technically means: P0403: EGR→ Circuit Malfunction. A circuit malfunction implies that there is a wiring ..., JeepP0430 Jeep DTC P0430 Make: Jeep Code: P0430 Definition: CATALYST EFFICIENCY (BANK 2) Description: General Operation: The State of Change (SOC) catalyst monitor uses the signals from both the Upstream and Downstream Oxygen (O2) Sensors to detect aging of the catalyst., Was getting the po430 code tried several things . This is what fixed itReplaced cracked exhaust manifold and the bolts holding down air intake manifold were..., This page is meant to help you troubleshoot the Jeep Commander P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents, What is the Cost to Diagnose the Code? Labor: 1.0. The cost to diagnose the P1404 Jeep code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour., This page is meant to help you troubleshoot the Jeep Wrangler P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. ... The bank 2 version of this code is P0430., P0420 and P0430. Jump to Latest Follow ... Hey everyone, getting these two codes on my 05 grand Cherokee 4.7L. Could possibly be both 02 sensors, a leak in the exhaust or a bad cat converter. ... Jeep Garage is where you can talk about all your favorite jeeps including the Cherokee, Liberty and Grand Cherokee. Show Less . Full Forum Listing., Does Cataclean really fix a P0420 / P0430 error code and catalytic converter. Cataclean Link: https://amzn.to/33t8RVQ Second channel for easy to follow Home ..., jeep; p0430; code; wrangler; 1 Answer. 0 votes . answered Feb 19, 2017 by Reynaldo (13.3k points) P0430 Catalytic below threshold Bank 2 Negative the whole time . any exhaust leak near Bank 2 , 02 sensor, sensor 1. any lean code condition. if you set just a P0430 the front 02 sensor on the data stays negative you may have a faulty 02 sensor. ..., What Does Code P0430 Mean? P0430 definition: Catalyst system efficiency below threshold (Bank 2). Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. …, I'm getting a P0420 code on my 2009 Wrangler. This code is for "catalyst system below threshold bank 1". Is the driver side or passenger side bank 1? Is this a common code on these jeeps? If so, is it usually the catalytic converter or something else like a cracked exhaust manifold or bad oxygen sensor? ... 2007 Jeep Wrangler Unlimited …, P0420 Bank 1 and P0430 Bank 2* Codes on 2009 JKU. I have a 2009 JKU and am getting P0420 Bank 1 and P0430 Bank 2 (yes 2 not 1) codes. I have been doing some research and this seems like an odd combination - at least it is to me. She seems to be running good - has 129K miles. These are the only 2 codes present., If you’re in the market for a Jeep and looking to buy one from a private owner, there are some common mistakes to avoid. While purchasing a Jeep from a private seller can often lea..., =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code JEEP P0038 Saving Repair ..., This page is meant to help you troubleshoot the Chevy Silverado P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents, Find a ShopPopular Engine Codes p0420 code p0172 code p00171 code p0128 code p0300 code p0456 code p0430 code p0442 code p0455 code p0113 code. Fixed It But The Check Engine Light Is Still On? ... Toyota 4Runner vs. Jeep Grand Cherokee | The Best Model Year For Every Budget 72 Car Safety Tips For Drivers Of All Ages & Stages, This page is meant to help you troubleshoot the Chevy Corvette P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents, Understanding and Diagnosing the Engine Code P0430. Diagnostic Trouble Code (DTC) P0430 indicates that the catalytic converter's efficiency in bank 2 is below the threshold. The catalytic converter's function is to eliminate or reduce harmful emissions, and it has a catalyst efficiency monitor (CEM) that uses two oxygen sensors., FOLLOW THIS GUIDE if you have a P0430 trouble code. I will explain the basics of why your OBD has this code stored and what you need to do to diagnose it and ... 2007 Jeep Grand Cherokee Limited 5.7L (p0430) Problem: MIL Lamp on (P0430) Diagnosing: Cats and oxygen sensors were replaced, but the check engine light stays on showing the same code ..., This page is meant to help you troubleshoot the Acura MDX P0430 trouble code. It covers the P0430 code's meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents, Permanent Code problem. I recently had a friends 2010 Camaro SS come over with no check engine light and no current or pending codes, However it has permanent codes for P0420 and P0430. These permanent codes are form being former current codes that have been cleared but not run and passed after being set. The car was tuned after the codes where ..., =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0420 Saving Repair Parts:C..., P0430-CATALYST 2/1 EFFICIENCY ... Came back in the morning and started it up and no code. That was 2000 miles ago. I've been waiting fore it to come back on, and from the looks of this thread I won't be left hanging. ... A forum community dedicated to all jeep owners and enthusiasts. Come join the discussion about performance, engine swaps ..., P0420 and P0430. Hey everyone, getting these two codes on my 05 grand Cherokee 4.7L. Could possibly be both 02 sensors, a leak in the exhaust or a bad cat converter. Anyone dealt with this problem before?, NOTE:Check for contaminants that may have damaged the O2 Sensor and Catalytic Converter: contaminated fuel, unapproved silicone, oil and coolant, repair necessary. 1.Start the engine.2.Allow the engine to reach normal operating temperature.3.With a scan tool, select View DTCs., How to fix a P0430 engine code: Catalyst System Efficiency Below Threshold Bank 2How To Test Oxygen Sensor Heater Element Video: https://www.youtube.com/wat..., What is Jeep code P0430 and what does it mean? Jeep code P0430 is a diagnostic trouble code that indicates an issue with the catalytic converter system in a …, The P0430 code is a common diagnostic trouble code (DTC) that may appear on the onboard computer of your Nissan Xterra. ... See also Unmasking the 2014 Jeep Compass: Unveiling Problems and Complaints. Repairing the P0430 Code in Your Nissan Xterra. Once the root cause of the P0430 code has been identified, appropriate repairs can be undertaken ..., P0420 Bank 1 and P0430 Bank 2* Codes on 2009 JKU. I have a 2009 JKU and am getting P0420 Bank 1 and P0430 Bank 2 (yes 2 not 1) codes. I have been doing some research and this seems like an odd combination - at least it is to me. She seems to be running good - has 129K miles. These are the only 2 codes present., The bank 2 version of this code is P0430. ... The P0420 code in a Jeep Grand Cherokee will often be thrown if one of your vehicle's oxygen sensors is not functioning correctly. There are rarely drivability issues associated with P0420. For most people, the first sign that anything is wrong is the service engine soon light coming on. ...