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[TraceyCassels]

Car still struggling to start on cold start idle very rough car shaking cutting out  miss firing having to rev it hard to keep it going  once going is fine and can stop start all day no problem but at traffic lights slight shaking  had spark plugs, coil pack crank sensor, 02 sensor done, timing belt but still have problems throttle body cleaned and cleaners through fuel system  compression test showed 10 bars and 12 bars   could fuel pump, throttle body cause this  just paid over a £1000 for repairs  would rather get some advice before I throw more money at problem as starting to think sourcing another omega might be cheaper

[addy]

Fuel filter, or maybe fuel pressure regulator faulty? Do a google on the symptoms of these. See if someone can do a fuel pressure test for you, will give you some idea of how the fuel system is working. Someone else with alot more experience will be along, to give you more ideas, of where to check.

[TraceyCassels]

Fuel filter been done, fuel pressure  just at a loss as everything gets done yet problem still here

[Doctor Gollum]

Ecu coolant temp sensor...

[Andy B]

£1000 ...... !!!!!     

[TraceyCassels]

Done that   only things not done are fuel pump, throttle body its been cleaned but not changed

[Nick W]

£1000 ...... !!!!!   

£1000 is easy to spend on a tired Omega, especially when the first post lists £300 worth of parts.....

[Doctor Gollum]

Done that   only things not done are fuel pump, throttle body its been cleaned but not changed

Not pump if it's fine hot.

Can try priming the fuel rail.

From stone cold:
Ignition to pos 2, count to 10, off, count to 10, pos 2, count to 10, off, count to 10, pos 2 count to 10 and crank. No throttle otherwise it turns the injectors off.

If it starts and runs right you either have an injector leak or a fuel pressure regulator problem.

Also, was the crank sensor a genuine one purchased from a genuine Vauxhall dealer that you genuinely had to walk into? If not, all bets are off.

[biggriffin]

Am guessing they've had the plenum off, I would check it's seated correctly,(pinched O rings) and all the vac pipes are correct

[Doctor Gollum]

Desmond iirc

[Raeturbo]

Yes, sounds like an air leak/pipe off somewhere maybe

[biggriffin]

Desmond iirc

Oooo, leak off pipes then, or cracked head. Ray of sunshine

[Andy B]

£1000 ...... !!!!!   

£1000 is easy to spend on a tired Omega, especially when the first post lists £300 worth of parts.....

I was thinking more along the lines of spending a grand on AN Other Omega

[biggriffin]

£1000 ...... !!!!!   

£1000 is easy to spend on a tired Omega, especially when the first post lists £300 worth of parts.....

I was thinking more along the lines of spending a grand on AN Other Omega

Get a pair for a grand

[Doctor Gollum]

£1000 ...... !!!!!   

£1000 is easy to spend on a tired Omega, especially when the first post lists £300 worth of parts.....

I was thinking more along the lines of spending a grand on AN Other Omega

It will still need another grand getting it to drive right