Cstone
New Member
- Joined
- Mar 30, 2023
- Messages
- 2
- Reaction score
- 0
- Points
- 1
- Age
- 35
- Location
- gold coast
- Members Ride
- 2011 Omega S2, lfw SIDI
Hi guys and girls, first time here. So, bought a 2011 Omega, guy I bought it off said there was an issue with o2 sensors, running rough, replaced all 4 straight away. Engine light still on, so I ended up buying a scantool and it was cam/crank position coding. Changed both exhaust vvt solenoids, all 4 cam sensors, oil/filter, air filter, spark plugs, and coils, cleaned throttle body and breather line but I still have jerks at temp (532 - 562rpm), and hesitation on acceleration. Milage doesn't seem great either. Has anyone got any suggestions or anything to try next? If you want more info I can provide. Thank you for your time. Also, when revving in park, there is a suction sound coming from top of the intake manifold (I think). Is this normal like a pressure release, or have I got a leak somewhere?
