Originally posted by demonked compression test: cylinder 1 - 150 cylinder 2 - 149 cylinder 3 - 151 cylinder 4 - 150 I also noticed when taking the spark plugs out, that the plugs in cylinders 1 and 2 were completely clean, and 3 and 4 were black like misfired fuel. Any suggestions on that? I will be performing a fuel pressure test tomorrow morning as well and will post results.
Still need to answer the question about engine management. As mentioned above big ass injectors do not work on a factory tune. Also, it is why I asked your fuel pressure. Since you said you are going to perform a test, safe to assume you have never set it, and that means you are likely on a stock FPR. You can see where we are going with this....
