My car is stock when I start the car in the morning the car smokes it looks like white smoke but then it goes away some but it never goes away completely and is hard to tell the color but it smells very strong like unburned fuel. After taking the car to a garage they put it in an emission machine and the HC are very high which indicates unburned fuel. I have pulled the spark plugs and after 1000 miles they are all black with carbon deposits.

I have replace: oil, oil filter, air filter, spark plugs, spark plug wires NGK, fuel filter, oxygen sensor, check the main cat, tested the fuel pressure.

I also made a compression test and is over 7Kg that seems to be OK too.

I also had a leak a long time ago but it got solved and the car doesnīt lose any coolant at all.

What else can I try to check now to solve this problem?

I also bought a RB CB and DP how will these 2 mods will affect this problem?

Thank you in advance and sorry for the long post,


Alex kuipers

 

well, the CB and DP will help to make the mixture run a bit leaner. But it is known the stock ECU runs very rich from the factory. you are obviously running rich. What you can do is get a programable ECU or maybe a simple apex-afc and lean it out.

Danny

 

fuel doesnt come out as white smoke, its black. look at the smoke again adn see if its white or blue. if its blue then your turbos might be needing a rebuild or gettigna new set. take off an intercooler hose and see how much oil isin teh intake.

 

I would wager the turbos if you are getting that much smoke.