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jerk when letting off the throttle

Apr 25, 2025
16
1
I found that my car (Seat Leon Cupra 1P) jerk when I letting off the throttle. The car runs quite good under acceleration and there is in my opinion no issue. I tried different MAF sensor and solenoid because I also have a small missifire when car is iddling. Found that my timing chain should be changed because in VCDS is -5KW. There is a little smell from oil cup like gas. Compresion is good. 170/170/180/170. What could be wrong? It happens only when I let off the gas...
 

Frostensen

Active Member
Aug 10, 2019
117
7
Don't have a clue, but it did happen to me on few occasions when going slow on cold starts. My best guess (In my case) was the hand brake didn't let the wheels go properly.