Mk1 golf 16v 9a
Posted
#1606668
(In Topic #219037)
Settling In
The CO screw was adjust as the emissions were high at the MOT. I'm not sure if the problem existed before the MOT as the drive to the test station was the first time I'd used the car since the conversion was done. Before this the engine had only run in idle for 5 years.
I'm not really sure where to start, I don't want to turn the co screw right up again as it will run too rich. Any help would be appreciated.
Thanks!
Posted
Local Hero
It could be fuel to air mix, but don't discount vacuum leaks first… I have also seen (OLD TIMEY) vacuum advance on the Diz to stick…. so it can't retard the timing after an advance.
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Posted
Settling In
I think the timing is the next thing to check as the car feels stuttery and a bit hesitant at times when on half to 3/4 throttle. The car then suddenly gives a pull once it hits 4k rpm.
Does that sound like a timing problem?
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