check engine light
dose the car run richer
if the check engine lights on due to po401 code fault (egr) does the car run richer than normal? and how much afr will be running taking into consideration that the car(evo8) is bone stock?
Last edited by ranz; Aug 18, 2007 at 02:15 AM.
https://www.evolutionm.net/forums/sh...ad.php?t=69771 this should help you. I stopped being lazy and search HAHA





