CaveVan Forum

VW T4 "Eurovans" => VR6 Engine tech => Topic started by: lotus54 on June 12, 2015, 05:44:27 pm

Title: Idle control at limit error
Post by: lotus54 on June 12, 2015, 05:44:27 pm

I still have this- engine is running well, just replaced plugs/wires, air filter good, throttle body clean, no leaks I can find.

Does the idle controller (in throttle body from what I can tell) go bad very often on these?

Other places to look?


Mark

Title: Re: Idle control at limit error
Post by: VAG_Tech on July 11, 2015, 08:50:59 am

Usually that fault comes up when the throttle body cannot limit idle due to an air leak. If you have a good scan tool like VCDS (Vag-Com) you can do a throttle body reset and readiness code. You shouldn't have any air leaks if you don't have any lean faults. Sometimes other things like a/c when you turn it on taxes the engine and power steering when you go to full lock. If the throttle can't adjust the idle to a specified rpm it will throw that code.