Pemo Posted January 22, 2014 Report Posted January 22, 2014 After normal driving it takes a long time for the motor to return to idle. Last night it kept running at 4000 rpm after trip on the motorway. - Scared the wife, made the teenage son laugh and also made it a bit difficult to drive through smaller cities.. As far as I can figure out it is either the IAC - Idle Air Control, or the MAF sensor - Mass Airflow Sensor . I'd like nok to purchase a part that is not neccesary, so what would be the most likely part to change first? Quote
insanitybeard Posted January 22, 2014 Report Posted January 22, 2014 Is there any possibility the butterfly in the throttle body is sticking? Or a dodgy throttle position sensor? Quote
Pemo Posted January 22, 2014 Author Report Posted January 22, 2014 It could be. I'll have another look at it tonight. Before it went crazy last night I could lower the idle with a quick step on the throttle. - But not anymore. Quote
insanitybeard Posted January 22, 2014 Report Posted January 22, 2014 Might be worth checking to see if the accelerator cable is sticking as well. If you can disconnect it from the throttle body, check the cable is able to move freely (get somebody to operate the pedal as you do this) and then operate the throttle manually, see if the butterfly is returning to it's fully closed position as it should be. Quote
Pemo Posted January 23, 2014 Author Report Posted January 23, 2014 It may be something as simple as a spring. The spring that pulls back the accelerator cable seems a bit weak. I gave it some oil and it seemed to help. If that does not fix it I will change the spring. Quote
insanitybeard Posted January 23, 2014 Report Posted January 23, 2014 Which spring are you referring to? Do you mean the spring that sits on the throttle body linkage that pulls the butterfly shut when no throttle is being applied? Quote
Pemo Posted February 5, 2014 Author Report Posted February 5, 2014 Exactly. WD40 did the trick. Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.