I have an 07 polo 1.4 tdi and when i start the car it automatically goes up to 2000 revs and doesnt come back down. when i drive the car and stop at a junction and the brake is pressed it comes down to about 1300 revs, and then when i let go of the brake to move off again, it goes back up, any ideas please help, cheers.
Hey.. i just had this exact problem in my GTI and after 2 weeks of trial and error, I had to replace my Coolant Temp Sensor.. it was bad so it threw off the fuel metering valve which was part of the crazy idling problem.. I cant be 100% sure because our cars are not exactly the same but I mean we have the EXACT same symptoms so .. justa suggestion. Use the VAG-COM sensor reader and you'll be golden.
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