I have a carby cultus 2003. Recently i got its engine overhauled at about 250k since then the engine backfires (thats what the mechanic says) when i switch off the car it keeps something creepy like trying to come back to life and its driving me crazy. A couple of visits to the mechanic but he allways blames it on my driving style that i shut off engine at high RPM but it happens also on low RPM.
Ps. The car is also knocking on pickups and has a vey rough feeling please help