Polaris ranger no spark

Help rzr won’t start no spark. So I got my 2015 rzr 1000 xp stuck pretty good the other night the front end was pretty far under the water/sand/mud mixture but the rear of the rzr was still on dry ground it was running for a good 20 minutes sitting like that and never overheated.

Series 10 2002 crank but won’t start. I have a 02 ranger 4x4. I was riding and it sputtered for a second and then died. It started a few more times but couldn’t get it moving before dying again. Now it won’t start at all. It cranks but no fire. I’ve checked air filter, carburetor, and has a good spark. In my opinion it’s like a blown ...Carb non EFI. Polaris service manual is really no big help. 1) Test plug against the body of the engine and no spark. Replaced plug no change. 2) Unplugged the black wire from CDI box, No change. 3) Check the ohms on everything I could and everything checked with in the spec. Except CDI because no real test fo it.Oct 30, 2021 · 3 posts · Joined 2021. #1 · Oct 30, 2021. I have a 2002 Sportsman 500 HO. My current issue is no spark at all. None with turning the key or by pulling the pull start. Removing the cutoff wire doesn’t change anything. New plug, new plug cap, wire, ignition coil, tried different CDI, still no change. Jul 20, 2017 ... Polaris 500 4x4 Has No Spark (Nobody Could Figure This Out) ... Polaris Ranger 500, How To Rebuild ... Honda TRX350 Rancher No Spark. The Long Way ...The Polaris Ranger side by side is a powerful and versatile utility vehicle that has become increasingly popular among outdoor enthusiasts, farmers, and ranchers. One of the primar...Feb 10, 2020 · 2016 Ranger 570 Crew EFI - No fuel or spark. I recently just fixed an issue where the EFI fuse was blowing every time you would turn the key. It ended up being a short in the key switch so I replaced the switch. Now I have power to everything and the motor will turn over, but it will not crank. I found that im not getting fuel and spark.

Sep 27, 2021 · Here's what I know: 2014 Ranger 800 6 x 6 with 8000+ miles; 670 + hours. I am the second owner (300 miles, 50 hours on my watch). Worked fine untill recently. Unit cranks but will not start/ignite. battery voltage 12.4 to 12.7 VDC. turn key to on - fuel pump sounds and is quiet after 3 seconds or so (normal) all symbols come on the display and ... Here is the information and what I have tried: - NO SPARK -. - Gauges and all other electrical items (lights, etc.) work. - The crank position sensor has been checked at swapped. Both test at 1017 ohms. (proper number is 1000 ohms +/- 10%) - The coil measures at 2.2 ohms on each part of the primary side (1-2 and 2-3). Book says 0.4 ohms.2024 RANGER SP 570. Starting at $11,699 US MSRP. Plus logistics surcharge of $500. Plus Destination Charge of $795. The RANGER SP 570 is great for work, fun to ride, and the perfect fit. Get more done and have more fun with 44HP, 1,500 lb. towing and 11" clearance. Available in 2-seat and 4-seat models.New spark plugs!2. Ignition Coil Pack Issue. The ignition coil pack might cause no spark issue with your Polaris Sportsman 500, as it gets the voltage to create a spark. So testing your coil pack is very important. To do so, you need to get to the spark plugs first from the hood. Remove the bolts from the coil packs, and inspect for any burn damage.5 posts · Joined 2018. #1 · Nov 29, 2018. I have a 2004 Sportsman 600 with the coil separate from the CDI. I'm trying to trouble shoot a crank no spark issue on this quad. The factory service manual (along with many posts on different forums) states to disconnect the Black wire from the CDI unit in order to isolate the CDI from the kill ...Buy Polaris Ranger Sparkplug Wire, 49.5 cm, Genuine OEM Part 4011364, Qty 1: Spark Plugs & Wires - Amazon.com FREE DELIVERY possible on eligible purchases ... 4012888 4012889 Ignition Coil Spark Plug Wire Cap for Polaris Ranger Crew RZR 4 S 800 2011-2017, 2 Pcs.

Dec 30, 2017 · 3. Spark plug sparks fine with new spark plug 4. carburetor is receiving fuel 5. no restrictions on air flow 6. New battery 7. Freshly cleaned and rebuilt carburetor including jets, needle and seat, gasket, air screw and spring, idle screw and spring 8. Air screw is 1.5 turn from seat 9. spark plug is gapped at .025" 10. Proposed preliminary tries ( if have not been done ): • disconnect the battery's + terminal; • set the meter to lowest range of Ω function or continuity; • touch the black probe to the battery's - terminal; • touch the red probe to the: - connectors of the two (2) black wires; - then to the terminal block's center pin;24957 posts · Joined 2014. #10 · Jan 18, 2021. The ECU is a computer - it controls ignition, fuel injection, fuel pump, AWD and many other functions. Shop Owner and Mechanic with over 50 years experience. This is an older thread, you may not receive a response, and could be reviving an old thread.No electrical power. Was mounting a Champion Winch to 2015 Polaris Ranger 570 Midsize. Needed to find a hotwire off the ignition to splice into for the remote switch. Used a meter to check the back of the ignition. Probed the first connection on the left of the ignition (as you look from the front), lights came on then lost all electrical power.NO SPARK on your Polaris Sportsman? Let's troubleshoot it! Titaniumman Garage. 12.6K subscribers. Subscribed. 90. 10K views 1 year ago. I'll show you how to …

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Feb 10, 2020 · 2016 Ranger 570 Crew EFI - No fuel or spark. I recently just fixed an issue where the EFI fuse was blowing every time you would turn the key. It ended up being a short in the key switch so I replaced the switch. Now I have power to everything and the motor will turn over, but it will not crank. I found that im not getting fuel and spark. 2016 POLARIS RANGER 570 FULL SIZE ECU ECM CDI IGNITION BOX | eBay. Parting out a 2016 Polaris ranger 570 Full size regular cab Strut Model. www.ebay.com. Life's journey is not to arrive at the grave safely in a well preserved body,but rather to skid in sideways totally worn out shouting WHAT A RUSH, WHAT A RIDE. WHOA !Polaris Ranger Forum. General Discussion 2004 500 ranger will not start ... If no spark , try another plug. If you still have no spark; test your ignition coil. If ...Sep 7, 2018 · 2016 Ranger 570 EFI No Spark. Im having a no start issue. I have no spark. First thing I did was change the coil. No help. There are two wires that plug into this coil via a plug- one white wire, one black wire. I have 12v to the white wire when put the other lead to a ground. But, if i put a lead into each terminal of the plug, I have nothing. Here's what I know: 2014 Ranger 800 6 x 6 with 8000+ miles; 670 + hours I am the second owner (200 miles, 30 hours on my watch) Unit will not start/ignite battery voltage 12.4 to 12.7 VDC turn key to on - fuel pump sounds and is quiet after 3 seconds or so all symbols come on the display and then go off except neutral indicator; fuel guage ...

Please help No spark. I have a 2003 polaris ranger 500 that currently has no spark i was wondering if anyone can help me it would be greatly appreciated. Everything else works lights fuel pump switches. I ohmed out the trigger coil its 97ohms which is good the exciter coil is 21.5ohms which i thought was bad so i put a new stator …08 - 800 RZR no spark, no fuel - Fixed! I figured this one out with all the helpful suggestions I read in this forum. I want to post this so maybe somone else will find it helpful. We are newbie RZR owners. My wife and I purchased a used 08 RZR-EFI this summer and have been having a blast with it. We took it out a couple of weeks back and kept ...Spark Plug Recommendations. Refer to the Specifications section for the recommended spark plug type for your vehicle. Always torque spark plugs to specification. NOTICE. Using non-recommended spark plugs can result in serious engine damage. Always use POLARIS-recommended spark plugs or their equivalent. Parent topic: Spark Plugs.The altitude of Polaris depends on where it is measured from. For example, when measured at the equator, it is located at 0′ altitude. The altitude increases as the location moves ...Aug 15, 2013. #2. If you have power at a known good coil pack but no spark you have no ground pulse. It could be from: ( in no particular order) - bad computer. - bad crank sensor. - wiring problem. Either from the crank sensor to the computer, or from the computer to the coil pack ( unlikely that all 3 wires had a problem at the same time.N. NolanHollin Discussion starter. 1 post · Joined 2021. #1 · Jun 30, 2021. I have a 2008 rzr ranger 800 that has no spark and will not start but it does turn over slowly. Its had a new crank put in and lots of other parts. We've checked the coils the computer and the CPS and I am lost please any help is greatly appreciated to get me in the ...I had no spark at first so after some testing I replaced the stator and then had spark for a little bit. I also had a cracked spark plug cap so just put a new coil and cap on. After doing some tests on the stator when I do an unloaded cranking test I get. yellow/red to black 6.2V. white to black 7.6V.2008 Ranger 500 Resurrection (No Spark) I'm currently stationed over in Bahrain, and am working on bringing a '08 Ranger 500 back to life. It was previously cast aside and doomed for scrap, until I arrived. I've managed to piece her back together with most parts scrounged from around the shop. Only thing I have to order is a starter motor left ...No start, has spark and fuel. Hello folks. I am new the forum and need some help. I bought a 2006 500 carb ranger. It all of the sudden stopped running while my father in law was driving it. It ran fine before. It cranks over fine, has compression, has spark. I pulled off the fuel line to carb and turned it over and plenty of fuel supply.

Carb non EFI. Polaris service manual is really no big help. 1) Test plug against the body of the engine and no spark. Replaced plug no change. 2) Unplugged the black wire from CDI box, No change. 3) Check the ohms on everything I could and everything checked with in the spec. Except CDI because no real test fo it.

No electrical power. Was mounting a Champion Winch to 2015 Polaris Ranger 570 Midsize. Needed to find a hotwire off the ignition to splice into for the remote switch. Used a meter to check the back of the ignition. Probed the first connection on the left of the ignition (as you look from the front), lights came on then lost all electrical power.To change the spark plugs on your RANGER 800, RANGER 800 XP, RANGER 800 HD or RANGER CREW 800, follow these steps. As noted in the Periodic Maintenance Chart in your Owner's Manual, inspect the spark plugs and replace as needed every 100 hours, 12 months or 1,000 miles (1,600 km). Spark plug condition is indicative …2015 Polaris Ranger 570 Full Size XP Lock N Ride Polaris Pro Fit Glass Wiper ready Windshield Lock N Ride Polaris Pro Fit Glass Rear Window ... Assumed the CPS fault was causing the no spark. Swapped in a new CPS sensor today and nothing changed so I decided to check spark again, this time pulling both plugs and sure as sh!t …I can't locate a fuse box either so I am coming to the conclusion there isn't one? All plug ins look okay- connected fully and without any water in them. Changed spark plugs but still turns over fine but absolutely no spark. Unit is 4 years old but has less than 100hrs on it. Any ideas?If the spark is weak, the spark inside the tool will appear yellow-red and have a more inconsistent spark pattern. Now that you have verified that there is no spark, it’s time to begin troubleshooting. 2. Make Sure the Kill Switch Is On. The ATV will not create a spark when the kill switch is off.Advertisement You have your fire pit and a nice collection of wood. The only thing between you and a nice evening roasting s'mores is a spark. There are many methods for starting a...Matt2001 said: My grandfather has a 2004 polaris sportsman 500 HO. He rebuilt the carb and enlisted me for help putting it back together. We got everything back, the right way. I'm much more experienced with cars though just to note. Here is the problem: When we go to start the wheeler there is no spark. The gauges work along …Dec 30, 2017 · 3. Spark plug sparks fine with new spark plug 4. carburetor is receiving fuel 5. no restrictions on air flow 6. New battery 7. Freshly cleaned and rebuilt carburetor including jets, needle and seat, gasket, air screw and spring, idle screw and spring 8. Air screw is 1.5 turn from seat 9. spark plug is gapped at .025" 10.

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no spark Cleaned the coils and rebolted on, don't think they need to be grounded as there is an plastic isolation block that holds them off the frame. Still no spark. After looking again I'm not sure I ever found the ECU, the only thing I can find under the hood and on the passenger side is the voltage regulator (I think).Feb 20, 2012 · 2008 Ranger XP 700 - No spark or fuel pump. I'm new to the board so hopefully I'm posting in the right location. I have a 2008 Ranger with about 100hrs on it. I had a friendly rat eat through 24 of the 25 main wiring harness wires. I attempted to repair the harness but ultimately I replaced the main harness as it would not start (no spark/no ... Start with a new spark plug, replace fuel, test your spark plug cap wire and coil. then you would need to test your stator and voltage regulator. Yes, I have service manual. Spark is great when it runs, has no spark when it dont. When it sputters you can see it loses spark and regains spark with inline spark tester.Learn how to fix no spark or one spark problem on your Polaris ATV with this easy and quick tip from TitaniummanGarage.08 - 800 RZR no spark, no fuel - Fixed! I figured this one out with all the helpful suggestions I read in this forum. I want to post this so maybe somone else will find it helpful. We are newbie RZR owners. My wife and I purchased a used 08 RZR-EFI this summer and have been having a blast with it. We took it out a couple of weeks back and kept ...Matt2001 said: My grandfather has a 2004 polaris sportsman 500 HO. He rebuilt the carb and enlisted me for help putting it back together. We got everything back, the right way. I'm much more experienced with cars though just to note. Here is the problem: When we go to start the wheeler there is no spark. The gauges work along …Engine Problems. Many Polaris Ranger 570 problems originate from the engine. Some of the most common engine issues include: Knocking – Many owners report a knocking or rattling sound coming from the engine, especially when accelerating or going up hills.This can indicate low oil pressure or wear on internal components like pistons or …It's clear that United wrote off its international first-class product long ago. United's Polaris product comes in many shapes and sizes. There's the "real" Polaris seat, of course...Answers: No drain plug in tank. You’ll need to pull the in-tank fuel pump, with a strap wrench take the jam nut off and lift out the fuel pump assembly out. You’ll need to pull the filter sock off the fuel pump and soak it in alcohol. Using your shaker siphon hose and drain as much fuel as possible.#1 · Oct 18, 2022. 2013 Ranger 800 crew…about three months ago, it started taking longer to start when cranking. Then it developed to require multiple times turning the key to get it to fire up. That went on for about a month, gradually getting worse with time. Why not look into it then, right??Advertisement You have your fire pit and a nice collection of wood. The only thing between you and a nice evening roasting s'mores is a spark. There are many methods for starting a... ….

The wires going to the crank position sensor were shorted together. The short was beneath the plastic loom. It was a pain to find. 2011 XP 900, Alba Racing Big Bore built motor with BoonDockers Turbo, HCR Long Travel, TMW race cage, Twisted Stitch suspension seats, Rigid LED lighting, and to many other things to list.Apr 7, 2010 · 2006 Ranger XP EFI 700 (4x4) - no spark. Need some help with my side by side. Was running fine. Shut it off but went to start it an hour later and it would turn over but it has no spark whatsoever. Have dash lights etc when I turn the key on and I can get the fan and fuel pump to run (by checking pin outs on ECU) but no power to the coil. Remove one of the coils, from the spark plug. Use an extra spark plug. A spark plug tester. Or even a screwdriver, in the end of the coil. Ground it on a piece of metal on the engine. Finally, have someone crank the engine, and watch for a spark. No spark, indicates an ignition problem.Many people in the points and miles space tout United Polaris as one of the best a U.S. airline offers. Does it live up to the hype? We may be compensated when you click on product...Mar 2, 2021 · RD/BL wire to coil, injectors and fuel pump drops from 12 volts to 0 when key on. I tested the RD/BL wire at the fuse panel and it shows 12 volts when key turned on then drops to 0. I switched relays and no change. Tested wiring at the fuse panel for the EFI relay. Orange wire, 12 volts at all times. GR/WH wire 12 volts with key on, RD/WH wire ... Subject: 07 Ranger 700xp no spark. Been working on my polaris ranger all day, that had quit running last week. I narrowed it down earlier in the week that I wasn't …I have a 2018 Ranger 900 XP with only a 160 miles on it. Have owned it since new but only use it around our small farm so low miles. It's been a bit finicky the past year (starting and running rough) off and on. Yesterday it would not start and threw a check engine light. 636 Crankcase Position sensor. Per the manual I checked the sensor, it ...Always wear safety glasses and nitrile gloves when servicing your Polaris RANGER. To inspect and replace the spark plugs on your 2022+ RANGER SP 570, RANGER SP 570 Premium or RANGER SP 570 NorthStar Edition, follow these steps. 1. Park the vehicle on a flat, level surface and ensure it is in PARK. Polaris ranger no spark, 2008 Ranger 700 XP No Spark. Hi everyone, I'm a new member, and a new owner of a used ranger with 3900 mi. I just purchased it last week, the previous owner installed a new throttle cable and a new battery just before my purchase. I adjusted the idle per the procedure online and it ran good for about 2mi then started to backfire and die., 2024 RANGER SP 570. Starting at $11,699 US MSRP. Plus logistics surcharge of $500. Plus Destination Charge of $795. The RANGER SP 570 is great for work, fun to ride, and the perfect fit. Get more done and have more fun with 44HP, 1,500 lb. towing and 11" clearance. Available in 2-seat and 4-seat models., May be shown with additional modifications or accessories. Seating Options: 2 Seat- 4 Seat. 2024 RANGER SP 570 NORTHSTAR. Starting at$19,499US MSRP. Manufacturer’s suggested retail price (MSRP) subject to change. MSRP also excludes destination and handling fees, tax, title, license and registration., I have no spark. First thing I did was change the coil. No help. There are two wires that plug into this coil via a plug- one white wire, one black wire. I have 12v to the white wire when put the other lead to a ground. But, if i put a lead into each terminal of the plug, I have nothing., I have intermittent spark, 2013 Polaris 800 ranger, I checked all the connections. Pulled the spark plug and have - Answered by a verified Motorcycle Mechanic. ... When I tried to started again is when I receive no spark. Ranger not Eddie ( Voice recognition issue ) One more thing. Even with the ignition off, I hear the electronic …, Polaris Ranger 570 Problems To Watch Out For. The seven most common Polaris Ranger 570 problems are: Excessive heat in the cab. Overheating. Airbox lid warps and no longer fits. Hard shifting. Brake pressure sensor switch gives out. Fuel pump problems. Starting Problems., Replace your ignition switch and you'll be good to go. In the mean time try starting it by tuning the key very slowly. 2014 Polaris Ranger Crew 900. 2012 Polaris Outlaw 50. 2010 Honda Rancher EPS 420. Like., IF you have no spark take a look at the plugs to see if they are wet with fuel. If so your fuel system and injectors are probably operating properly and you can focus on ignition. 2015 Polaris Ranger 570 Full Size XP Lock N Ride Polaris Pro Fit Glass Wiper ready Windshield Lock N Ride Polaris Pro Fit Glass Rear Window, Sep 13, 2013 · 08 - 800 RZR no spark, no fuel - Fixed! I figured this one out with all the helpful suggestions I read in this forum. I want to post this so maybe somone else will find it helpful. We are newbie RZR owners. My wife and I purchased a used 08 RZR-EFI this summer and have been having a blast with it. We took it out a couple of weeks back and kept ... , 5 posts · Joined 2018. #1 · Nov 29, 2018. I have a 2004 Sportsman 600 with the coil separate from the CDI. I'm trying to trouble shoot a crank no spark issue on this quad. The factory service manual (along with many posts on different forums) states to disconnect the Black wire from the CDI unit in order to isolate the CDI from the kill ..., 2016 Ranger 570 Crew EFI - No fuel or spark. I recently just fixed an issue where the EFI fuse was blowing every time you would turn the key. It ended up being a short in the key switch so I replaced the switch. Now I have power to everything and the motor will turn over, but it will not crank. I found that im not getting fuel and spark., I'll show you how to troubleshoot a no spark or one spark no spark issue and show you how to fix it., OK - the spark is controlled by the ECM. First check for 12v on the white wire at the coil - then check for 12v on the black wire when the connector is plugged into the coil. When the ECM calls for spark, it momentarily connects the black wire to ground (not a CDI ignition but electronic ignition) Shop Owner and Mechanic with over 50 years ..., Hi Guys-. I just bought a used 2010 Polaris Ranger 800 EFI. We put about 10 miles on the machine and had just filled it up with gas (93 Octane Ethanol-Free, poured from a gas can that was bone-dry). I drove the machine around my yard one time and stopped to pick up a passenger. The machine bogged down and died. Would not start …, Help rzr won’t start no spark. So I got my 2015 rzr 1000 xp stuck pretty good the other night the front end was pretty far under the water/sand/mud mixture but the rear of the rzr was still on dry ground it was running for a good 20 minutes sitting like that and never overheated., Sep 20, 2013 · 2005 Ranger 6x6 No Spark. Here's another one. After putting way too much money rebuilding this machine I was out putting up deer stands and it just died and would not start back up. After I walked out and got a tow back to the house I checked it out and it does not have spark. I replaced the spark plug, then the ignition coil, then the CDI box ... , Posted 3/21/2015 17:38 (#4468083) Subject: 07 Ranger 700xp no spark. Been working on my polaris ranger all day, that had quit running last week. I narrowed it down earlier in the week that I wasn't getting any spark so I ordered a new coil. That came today and I put it on and still having same issue. Some things I have narrowed down already., Series 10 2002 crank but won’t start. I have a 02 ranger 4x4. I was riding and it sputtered for a second and then died. It started a few more times but couldn’t get it moving before dying again. Now it won’t start at all. It cranks but no fire. I’ve checked air filter, carburetor, and has a good spark. In my opinion it’s like a blown ..., Mar 20, 2019 · Just cranks and cranks, but won't fire. Took about 2-3 minutes of repeated attempts to get it started, it does. Turn around and try to head back to my driveway, slow speed, get about 100 yards, it sputters and dies again. This time, it simply won't start, just cranks and cranks, won't fire... This is when someone tipped me off, that it sounds ... , FIND A DEALER. CA-ENGLISH. When you need a RANGER UTV Utility Vehicles spark plug replacement, Polaris is your source. We have you covered for Polaris UTV spark plugs. Canada., Aug 30, 2023 · Start with a new spark plug, replace fuel, test your spark plug cap wire and coil. then you would need to test your stator and voltage regulator. Yes, I have service manual. Spark is great when it runs, has no spark when it dont. When it sputters you can see it loses spark and regains spark with inline spark tester. , Hi Guys-. I just bought a used 2010 Polaris Ranger 800 EFI. We put about 10 miles on the machine and had just filled it up with gas (93 Octane Ethanol-Free, poured from a gas can that was bone-dry). I drove the machine around my yard one time and stopped to pick up a passenger. The machine bogged down and died. Would not start …, Amazon Affiliate Link to Kill Switch: https://amzn.to/2XvxOHVThis video shows how to fix a one spark, then no spark while cranking problem. Please click like..., Polaris Ranger Forum. General Discussion. 2008 Polaris Ranger Won't Start. Jump to Latest Follow 17K ... Thanks for the response. I did change the spark plug but still no luck. My biggest fear is lost compression.. What doesn't make sense is that it road well the night before, and started right up that morning before dying 200 yards later., 1 post · Joined 2019. #1 · Feb 24, 2019. XP1000 Ranger has started every time for the last couple years 200 hrs. Got out of it to load some hay got back in and it wont start. It turns over fine. Just won't catch and start. Like it's not getting fuel. Tank is full. Battery is strong., 2. Ignition Coil Pack Issue. The ignition coil pack might cause no spark issue with your Polaris Sportsman 500, as it gets the voltage to create a spark. So testing your coil pack is very important. To do so, you need to get to the spark plugs first from the hood. Remove the bolts from the coil packs, and inspect for any burn damage., 47 posts · Joined 2021. #1 · Feb 11, 2021. I am having a no spark situation with 2010 Ranger RZR 800 EFI. The CPS test with in specs. I tested the coil pack using an ohm meter going from ground on the coil to the plug wire and have 0 resistance on both terminals. Testing both plug wire terminals at the same time I get 0 Resistance., Fuel Pump Troubles. Problems in the EFI (Electronic Fuel Injection) pump are common in many Ranger models (like the Ranger 570). The symptoms include a bogging engine, sudden throttle cut downs, backfires, or clogs in the fuel pump. If you have a clogged fuel pump, you may need to push down on the accelerator like your life …, 2010 Polaris ranger 400 won't start I have a 2010 Polaris ranger 400 and it won't start. It has spark and is getting fuel. It will turn over all day long but won't start. Used starter fluid and still won't start need help please. Save Share. Like., Polaris Ranger 570 Problems To Watch Out For. The seven most common Polaris Ranger 570 problems are: Excessive heat in the cab. Overheating. Airbox lid warps and no longer fits. Hard shifting. Brake pressure sensor switch gives out. Fuel pump problems. Starting Problems., 2010 Polaris ranger 400 won't start I have a 2010 Polaris ranger 400 and it won't start. It has spark and is getting fuel. It will turn over all day long but won't start. Used starter fluid and still won't start need help please. Save Share. Like., 96 posts · Joined 2015. #1 · Nov 1, 2022. 2015 Polaris Ranger 900 XP excellent shape and low hours. Cranks but no start. Ranger had been occasionally running a little ruff over the past month. Seemed …, Jan 18, 2021 · 24957 posts · Joined 2014. #10 · Jan 18, 2021. The ECU is a computer - it controls ignition, fuel injection, fuel pump, AWD and many other functions. Shop Owner and Mechanic with over 50 years experience. This is an older thread, you may not receive a response, and could be reviving an old thread.