element1290
10-20-2009, 01:07 PM
So i have had my check engine light on for a few months now. i was under the impression it was because of my AEM intake that was installed but I was told that should not be the case. I took it to have a diagnostics ran and the codes ran on my ecu were something like p127/p128 i believe. Also I was told that I had an exhaust leak because my doughnut ring blew. That was replaced but it did not fix the issue....anyone can help? when i rev my engine the sound is in the area of my manifold or catalytic converter i think?