Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Big_Al on 05 May 2013, 18:27:28
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Hi guys,
2 codes keep appearing after being cleared P1700 & P1780 on a friends 2.2 petrol CD saloon. Car seems very under powered . Also the engine is very very lumpy on cold start up, clears & smooths out after a minute or so , but has an occasional miss/hesitancy on tick over . Also has a loud ticking/clicking from cold which disappears completely after about 2 mins running . I think this is an exhaust manifold leak which seals as it warms up
In motion, flooring the pedal brings in kickdown but spanner light comes straight on . Switch off engine & re start . . the spanner light stays off until you floor it again while in motion .
No spanner light comes on if you rev the engine while in P or N . engine revs freely to the red line while in P or N .
Could this be the cam sensor causing it's confusion to the auto box that I have read about on here somewhere ?
any ideas please :-\ :-\ :-\ TIA Al :y
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If its cam sensor, you will get P0340 error code as well......and it usually shows itself after starting with a hot engine.
As for the the ticking.....could be exhaust manifold studs snapped.....could also be a lazy lifter.
So i think you have two probs here.....probably is exhaust manifold, as that is common on a 2.2....and probably cylinder one, i think, cylinder nearest the front of engine.
I dont think its cam sensor, for the other fault, as you would be getting P0340. Not sure what to suggest tbh.....apart from check throttle body and check for air leaks...
I would ignore g/b codes tbh, unless a problem with g/b.....iirc they are communications timeout errors
HTH
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If its cam sensor, you will get P0340 error code as well......and it usually shows itself after starting with a hot engine.
As for the the ticking.....could be exhaust manifold studs snapped.....could also be a lazy lifter.
So i think you have two probs here.....probably is exhaust manifold, as that is common on a 2.2....and probably cylinder one, i think, cylinder nearest the front of engine.
I dont think its cam sensor, for the other fault, as you would be getting P0340. Not sure what to suggest tbh.....apart from check throttle body and check for air leaks...
I would ignore g/b codes tbh, unless a problem with g/b.....iirc they are communications timeout errors
HTH
thanks for your reply . :y
Already checked for air leaks & did a recent throttle body clean . The small hole in the side of the body was completely blocked . Car seems to tick over better since that was done .But runs a rough as hell from cold .
Ticking noise is coming from the exhaust manifold area at the side . seems to be directly under the heat shield :-\
If the Auto box has a fault will this bring the spanner light on ?
Also forgot to say that there is no EML on . . . just the spanner one
Owner says car has been down on power ever since a local garage done a cambelt & water pump change .
Guessing this could well be cam timing issue as I think Tunnie suggested in a previous post when codes were showing a misfire on cylinder 2
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If its cam sensor, you will get P0340 error code as well......and it usually shows itself after starting with a hot engine.
As for the the ticking.....could be exhaust manifold studs snapped.....could also be a lazy lifter.
So i think you have two probs here.....probably is exhaust manifold, as that is common on a 2.2....and probably cylinder one, i think, cylinder nearest the front of engine.
I dont think its cam sensor, for the other fault, as you would be getting P0340. Not sure what to suggest tbh.....apart from check throttle body and check for air leaks...
I would ignore g/b codes tbh, unless a problem with g/b.....iirc they are communications timeout errors
HTH
thanks for your reply . :y
Already checked for air leaks & did a recent throttle body clean . The small hole in the side of the body was completely blocked . Car seems to tick over better since that was done .But runs a rough as hell from cold .
Ticking noise is coming from the exhaust manifold area at the side . seems to be directly under the heat shield :-\
If the Auto box has a fault will this bring the spanner light on ?
Also forgot to say that there is no EML on . . . just the spanner one
Owner says car has been down on power ever since a local garage done a cambelt & water pump change .
Guessing this could well be cam timing issue as I think Tunnie suggested in a previous post when codes were showing a misfire on cylinder 2
Well in that case, i think first port of call, would be getting the cam belt timing checked by someone that knows what their doing :y
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will try & get the timing checked then ;)
PITA this car >:( >:(
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Removing the Exhaust heat shield will probably reveal a crack in centre of the manifold,a well known fail on the 2.2 unfortunately :(