So fellows I managed to scan my car with computer and it showed 6 errors. 1st of IAC Valve, Next 4 of injectors overfueling the cylinders from 1 to 4. Last one was of CAM Sensor. I changed CAM Sensor and missing and jerks has gone and car drive is smooth back again. but morning start up issue is still there as if i start the car after a long rest, it hasitate and stalls and i smell pertol in the car (obviously over fueling) the guy which scanned with computer said that the overfueling are related to IAC as once you'll change it overfueling will be over. Is he saying right??
Doesn't overfueling is related to MAP Sensor and the indications were for the MAP Sensor change? One Suggestion is required that IAC sensor has thrown error, is it possible to clean it up and hook back in? one thing more, if I am going to change the IAC, the old one that is currently installed on throttle body has a gasket between the IAC Valve and throttle body but for air passage, it seems that it has been blocked as the two holes in gasket for IAC Valve measures same as required by the two screws to tight down the IAC Valve. Is it true for IAC Valve or when I have to replace it with a new one, I have to modify the size of air passage holes same as IAC Valve has. and can I install it without gasket and using only silicon?