Join Date: Aug 2019
Feedback Score: 0 reviews
15' RZR 1000 Aftermarket Turbo
I have a 2015 Polaris RZR factory 1000 with an aftermarket turbo & clutch kit and exhaust. Stock engine, no other performance modifications. I bought the unit used from a repair shop that was using it as a demo to sell RZR parts & service. I've recently learned a bit more about the back story behind some of this and that there are 3 letters that make many people cringe... API. It's an API Turbo Kit & Exhaust along with an "API" AEM Stand-Alone ECU and harness.
I've had the unit for 3 years and have put less than 500 miles on it, it's always ran great until it gets hot, then it runs on 1 cylinder. Let it cool down and it will take off running great again. This year it still is running fine, doing the same issues; but had gotten to the point where it was having hit and miss starting issues. Sometimes it would start and run fine, sometimes it would not want to start and when it finally would it was weak with a rough idle. Now its to the point where it won't start at all. I've been chasing it for years as I rarely have time to use it let alone work on it and finally taken some time to research it a bit. I've downloaded the AEM Infinity Tuner software along with Data Logging, but unfortunately the machine won't even start now to do any data logging to find out what's triggering it. I believe I know what's wrong, but hate to start buying parts without knowing for sure.
The installation instructions for the AEM Stand-Alone ECU & Harness state the 3 Coil Driver MUST be mounted to a metallic surface to allow for heat dissipation. Come to find out, it was NEVER mounted to anything. I believe that unit has just been fried, however it sounds like that may not be the case anymore.
AEM Technical Support thinks its the crank sensor. Speaking with Alba Racing, they think there are deeper issues as the crank sensor is reading engine speed, so it appears to be functioning correctly. He said the AEM harness supplied for API were problematic and could be the issue, also said it may have jumped timing. We are going to start checking voltage at the connection between the factory harness and the AEM harness.
It's got fuel and turns over, but won't fire. Sprayed a little either just to see if it would fire on either and it won't which leads me back to coil issues as it's not getting spark.
We haven't started to dig into it real deep yet, but figured I'd see if anyone has any ideas or have had similar issues.
Thanks for any help in advance!