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[leebron]

Hi iam new to this forum. I have tried finding an answer to what this problem could be, but with no luck.
I have a Opel Omega Petrol 2.2 Stn wagon -01
The car operates normal most of the times, but some time is difficult to start and lambda or electric fault light comes on and the car acts strange. The throttle body doesnt electrical open as i should to the gas pedal and car doesnt respond. Some time it dies. I can gas normal when there is no gear in. With gear in and give gas/power it "blurr sound" and no effect like the throttle body is closed. I have replaced with other throttlebody but the its no better, still same problems.
Here is the fault codes. As soon as i clear fault codes the car goes normal. (pictures are from two diffrent time/place with cleard in between) Can/imobilizer (iknow why they are there) its the rest.

[tunnie]

Important code there is the P340, Cam Sensor. Issues you describe also suggest a fault cam sensor 

Genuine part only for this 

Also worth popping the throttle body off and make sure that is clean and working freely 

[leebron]

Ok i will check the connections to the cam sensor or just order a new one. 
The throttle body is from a working other omega n cleaned so that shouldnt be the problem.
What i feel is so strange is that as soon as i clear the fault codes the car works normally. Its mostly when u start the engine after awhile the problem comes. And then there is nothing i can do unless i clear codes or wait for a while and start the engine again.

[tunnie]

Ok i will check the connections to the cam sensor or just order a new one. 
The throttle body is from a working other omega n cleaned so that shouldnt be the problem.
What i feel is so strange is that as soon as i clear the fault codes the car works normally. Its mostly when u start the engine after awhile the problem comes. And then there is nothing i can do unless i clear codes or wait for a while and start the engine again.

Hot/Warm starting issues on 2.2i is classic cam sensor fault, I had exactly same with my 2.2i at around 100k miles. Dead easy job to swap it out 

[leebron]

Dead easy job to swap it out

I have bought a new one. Do i need to remove more then the plastic cover in front? looks taight, with cam belt and other.
i tried cleaning just the connector on top but that didnt do any good.

[leebron]

Still not getting the car to work. The cam sensor works vauxhall/opel garage told me so. Its in for longer diagnostic now. They dont seem to find the issue causing this.
Update on sympotms. Same codes above always.
The car gets fault codes when cold start or after longer time off. the fault codes causing car to limp mode? it doesnt respond to gaspedal just blurr sound sluggish. When the car gets warm i can finally erase codes and the cars goes normal.
Cant erase the faultcodes until the car gets warm, otherwise it dies.

the car has new cam sensor maf sensor, lambda, lots of new. have also replaced with new "used throttle body" still same problems. Cant be exact same problems with this throttle body can it? Its cleaned and moves normally.

Any ideas? Could it be a connection problem with cables? But then why would it always suddently work as soon as the car gets warm and after erasing codes. Sounds to me more like sensor or ecu failing. 

When the car is warm and had erased codes i can turn of and on engine with no problem or fault codes.

Regards.

[TheBoy]

Was it a genuine GM cam sensor fitted, not a generic Siemens or Bosch part?

[leebron]

It is a siemens part. (pre owner who installed it). Atleast ordered from a serious company, but who knows.

But i have got an answer from the opelgarage now, they say it could be the egr or ecu.
EGR dont seem to work, open/close when its cold. And when the car gets warm it works properly.
Could this make sense? Could this really make the car useless when it doesnt work properly. And not making car to start directly when cold?