Craigz22se
Member
Hi, my 2003 Vectra C 2.2 16v SRi (Z22SE), has been running rough over the past week, especially at Idle. I have lack of power when I accelerate while under 2000rpm. My car stutters/hesitates. Once I reach over 2000 revs, my car seems to accelerate fine and drives well. I have a fault code reader and it comes up P0300 (random/multiple cylinder misfire). I have changed engine oil and filter, fuel filter, spark plugs, cleaned and blanked EGR valve, tested with new coil pack, cleaned air filter, sprayed MAF sensor with contact cleaner, using carb cleaner I have cleaned the air intake and throttle body/control valve and my car has still the same fault! I can now hear quite a loud rattle/vibration at idle, is this caused by misfire or could this be a timing/balance chain fault, which is causing the P0300 code?
I appreciate your help,
Thanks,
Craig
I appreciate your help,
Thanks,
Craig