Hey guys..im need some help for my problem..last month my car engine was jammed due to oil pump failure..then it cause the intake camshaft bend and the balance shaft broke..after replacing both parts the engine cant idle smoothly at cold start..it can idle smoothly after u constantly rev at 2500 rpm for 5 minutes..but if u rev the engine again it will vibrate and after few seconds it can idle smoothly..can anyone tell me exactly what happen to the engine??

Its already 3 months i left the car like that..or do i have to buy a new engine for better solution?

 

It kind of sounds like the balance shaft could be not timed correctly. A balance shaft out of time will cause or amplify the very vibrations is it designed to cancel out. Primarily at idle speeds.

 

even if i have the correct timing setting?..so how i gonna solve the problem?

 

If you are sure it is timed correctly it might be the coolant temperature sensor. Get the OBD error codes from the ECU before going any further.

 

Theres only one error code appeared..crankshaft position-camshaft position correlation bank 1 sensor A..is this related with the incorrect timing setting or any other problems?

I already set the timing 3 times and its 100% correct but this error code still appears. I also changed the camshaft sensor and the crankshaft sensor but it doesn't work at all.

 

Without being there to put another set of eyeballs on it, I'm out of suggestions.... Hope you get it sorted though. It's probably something simple..