Hello, on my S40 1.8 (85kw) petrol engine from 1996 I had to find the following problem after changing from one of the ignition coils: Sometimes the stationary gas just stays very high after uncoupling or when standing at a traffic light by itself. But this not only on cold engine, but also after a 50km drive on country roads. In addition, I have the feeling that the injection is very long the opinion that the engine is still ice cold. It comes very long, even after 20km driving, nor white smoke from the exhaust and what comes out of the exhaust, smells strongly of petrol, as if never a proper/complete combustion of the fuel is achieved. I only know that the cat is quite over, since before I have had the ignition rinse replaced again and again for a short time two cylinders have failed and the unburned fuel has unfortunately burned the cat mostly. However, neither oil nor cooling water is consumed. What could cause this increased empty run and is it normal that even after 20km of visible white smoke comes out of the exhaust?