Hope somebody can help with this problem.
I have a 2004 Signum 2.2i Z22YH.
Car has a rough idle.
Slight hesitation when pulling away and no power until about 3000 revs.
Runs great on the motorway until you have to stop and then it stutters as you speed up again.
If I turn off the engine when it's hot then restart about 10 minutes later, the spanner light comes on but no error code.
It has had a recon HPFP, new coil, new plugs, swapped fuel regulator, swapped Maf.
Convinced it was the "squirrel" flaps so obtained another manifold with working flaps and swapped them over. (Stripped and cleaned starter motor while I was at it).
Still no difference.
The exhausts are sooty so may be running rich.
My son has the same model and his pulls like a train.
Anybody any ideas?
I have a 2004 Signum 2.2i Z22YH.
Car has a rough idle.
Slight hesitation when pulling away and no power until about 3000 revs.
Runs great on the motorway until you have to stop and then it stutters as you speed up again.
If I turn off the engine when it's hot then restart about 10 minutes later, the spanner light comes on but no error code.
It has had a recon HPFP, new coil, new plugs, swapped fuel regulator, swapped Maf.
Convinced it was the "squirrel" flaps so obtained another manifold with working flaps and swapped them over. (Stripped and cleaned starter motor while I was at it).
Still no difference.
The exhausts are sooty so may be running rich.
My son has the same model and his pulls like a train.
Anybody any ideas?