Question about 1987 Saab 900

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1992 Saab 900 LPT Uprated to FPT

I was wandering if someone could help with my fueling problem. 
The car recently had a major service plus new HT Leads, Plugs, Dizzy cap and Rotor Arm.  Since then it seems to the exhaust smoke is very blue, but still runs smoothly untill I accelerate hard and it start to miss and back fire.
Is there a major problem or is it a case of replacing a changed componant from the service.
This problem was not there before the service.
Thanks for your time.

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Blue smoke is oil burning if it does this on idle good chance turbo needs a rebuild if the car is over boosting the car will pull back poss back fire u need to make sure base boost was set correctly

Posted on Jun 22, 2009


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