Last time I went to emissions I failed but not really by that much. I was using a PM6 ECU because I figured it would run leaner. Next time I go to emissions I have to pass. I was wondering if I should use my PG7 or not. I know the 2 ECUs have different fuel maps. They make us rev to 2500 and stick it there to do the emissions test. Which one do you think would be better at 2500 rpms for emissions?

 

I would also like to know the same question, I am running a PG7 at the time. When smog comes im going back to the PM6 since the fuel maps are not as aggressive. Im going to say stick to the PM6 because its leaner and the PG7 will most likely be running rich.

 

if you have a fpr, lower the psi a bit