Help fixing your Volvo it is an 89' 740 Volvo with turbo.?

Answer:
What are you looking to fix. I am a Volvo tech. 89 Volvo 740 turbo runs rich blows black smoke all plugs are black but are not oily rev it up change plugs. wires. coil. air filter.
First answer by Jdean97vr6. Last edit by Dmondo. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 3 [recommend question].