Discussion Starter • #1 • 8 mo ago. i don't understand why this tune gets slower over time..it's incredibly annoying. But before we do that, there’s a few things we need to look at. But as soon as I hit the gas my rpms go back to 3000. For example, to perform a throttle relearn on a 2008 Silverado 5.3L, select and run the Idle Learn Reset test. pedal and releasing. Some examples of reasons to perform a TBA: The vehicle's battery has been disconnected and re-connected The ECU has been removed and reinstalled The Throttle Body has been cleaned or removed and reinstalled The Accelerator Pedal has been removed and reinstalled In some vehicles, the car will not run correctly, or … You can also manually trigger a relearning procedure. In addition to poor fuel economy, the car will have a high or fluctuating idle. Do this with the negative cable DISCONNECTED from the battery. Or outline the procedure here? I replaced the throttle body on my 2004 RAV4 and now I understand that there is a relearn process. 2 Posts . Manual Relearn. 1,601 Posts . Remove the negative battery cable (-) and keep it off for about 13 minutes, then hook up the battery cable and make sure it is tight. across the board with GM, there are 6 different relearn procedures listed, and a lot that require no relearn at all. Apr 08 2018, 12:07am . Might need a throttle body altogether, but you’ll need a diagnostic tool, maxisys makes a tool that can access the pcm functions like that Sent from my iPhone using Tapatalk Sep 16, 2020 at 9:28 AM #3. I tried the reset...relearn procedure about 20 times and nothing works. This is a comprehensive list for the model year 2007. Get it squeaky clean. Im not sure if its throttle, IAC, EVAP or all three. Discussion Starter • #1 • Aug 24, 2016. Older or newer vehicles could differ. I just hope it comes down eventually after many miles driving. HemiLonestar Senior Member Military. The short circuit you’re creating here is designed to drain all power from the … After cleaning the throttle body on a GM vehicle, you may need to perform a throttle/idle relearn. You need to take a road trip. You need to use the Tech II scan tool from GM to perform this relearn process. I got codes for EVAP canister/solenoid, C342D which apparently is throttle position sensor or Idle Air Control. Does anyone know about the resetting the throttle body by holding the accelerator down for ten seconds? If you have a DBW system, I would recommend leaving it alone, as you could cause more problems than you solve with a cleaning. Re: How to Clean your Throttle Body. ahh then that probably won't solve what i'm looking for. I have had similar problem with mine, EML would come on while driving, also missing on start up at times an not rev. My 1.8 has no throttle valve at all. It should readjust after about 200 miles or so and be back to normal. WD40 won’t be an effective throttle body cleaner, hard deposits stuck to the throttle body and throttle plate will require a throttle body solvent. It might make you feel better, but it might do little to solve an idle problem. After replacing the throttle body to your engine, if the engine light was on and has a pending code, the code will go away. Below is the procedure for cleaning. i guess i just have to reflash the damn tune. Can someone help me and point me in the direction of where I can find this procedure? Cleaning your throttle body likely won’t do anything to solve an idle problem. Reading some of the G forums some people say you are not suppose to clean your t/b.... the t/b's are very sensitive. Scan tool shows pedal sensors are working. 5 Posts . In the latter case, the engine will receive excess air. Congratulations on installing your brand-new Spectra Premium electronic throttle body. Mazda 6 2009 with the 3.7 engine . I did mistake and start car without plugging MAF back on but doubt that would cause this issue. sorry you are questioning my abilities as a 30 year tech. Ive done the relearn procedure about 7 times and it just wont keep it. Relearn procedure replaced throttle body/TPS on 2005 malibu with 3.5l and now won't return to idle once pressing accel. Just in case you’re wondering, a failed TPS will force the throttle body valve to either shut or stick in an open position. I'll clear the codes with a scanner and do the relearn. I recently learned this, and did it to my car today--the difference was dramatic. I tried the procedure idle for 3 min, off 60 sec, idle 3 min, off 60 sec, then run for 3 min. Went through the relearn process but the engine wouldn't get below 2200rpm. Too much throttle body cleaner isn't enough. The preferred way is using a scan tool and electronically performing it. I think the throttle or IAC might have contributed to the EVAP code? Any suggestions or ideas are greatly appreciated. over 2000. When you cleaned it, you caused a sudden change to the throttle body function and confused the ECM. When doing relearn procedure the throttle body isn't performing a sweep. high idle relearn for 2nd gen. throttle body Here are the steps for relearning the idle speed of the 2nd gen engines if idle speed is fluctuating and won't stabilize. well buy a scanner then. Im wondering if I would need the scan tool to complete the relearn. The ECM made an adjustment due to the carbon build up on the throttle body. Had the codes read at a friends garage and all connected to throttle body. The following pages include a list by name of which proce- dures to use. Truck threw the code for throttle body sensor (3rd time this has happened in 90k miles of driving). 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