gtv rough idling.....question - Alfa Romeo Forum
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(Post Link) post #1 of 2 Old 05-05-09 Thread Starter
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98 gtv ts

gtv rough idling.....question

hi i have a 96 2.0 twinspark

it idles roughly

i've checked the stepper motor, maf, coils and all are ok

it drives wells enough too

i'm lead to believe its a timing issue

any quick ways of checking the timing without having to order up cam locks etc
even compression check if someone has the correct values?

only other problem is there is a slight blow out round the front pipe/manifold area. would this be enough to upset the lamba?

i bought the car with this issue with the prev owner changing most probes etc before i re checked them

cheers all
zigman36 is offline  
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Re: gtv rough idling.....question

If you did a compression test and all four cylinders came out + or - 10% then that would be pretty good validation all was in order... but not an absolute guarantee of slipped timing...

No idea what a good value would be but anywhere in the 'green zone' indicated by most guages, about 12bar maybe? Again though I would worry more about consistancy accross the cylinders than I would about the actual value...

Good luck!
ChrisH is offline  

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