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1. High Idle 2. Car...
 
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1. High Idle 2. Car keeps revving (rpm goes up) after taking foot off gas pedal

  

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Hello Scotty, am a big fan.

It's a Mercedes Benz M272 engine, 

The car keeps reving up even after you take your foot off the gas pedal,  Did a throttle body clean and now the idle is higher than normal (800+) and it still revs up when you take your foot off the gas pedal.

I did a manual throttle relearn after the throttle service and yet the idle is still not back to what it was prior to the service 

 

Kindly advice, it's ml350 2006 

 

Chudi.


1 Answer
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Check the throttle position sensor:

https://youtu.be/_skVHdgtMTU

 


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