emission

[Nateds16]

my n0x for passing is 1026 in doing 2347 on my del sol i got it to pass in az then when i moved back home to ga all i have on it is cam gears and msd bought it like that dont know why it on a single cam let me know what you think is wrong with it i thought it was the o2 or the cat but i just replaced it

pm me what you think please

[RBS]

throwing check engine? distributor timing advanced? changed your spark plugs lately? cat . converter good? is your engine at operating temp when you run the test? lots of these can make a N0x level skyrocket, double check and try again.


i accidentally left my D15B dizzy timing advanced pretty far and did a 2000+ N0x... retarded it all the way and it came down to almost 8-900ish, so try that

[Nateds16]

i lowerd everything and its throwing check engine for throtle body my dads a master mechanic and he still has not idea what is wrong he thought egr valve but someone told me that it didnt have it im in mcdonough if anyone feels like they can pass it 50 dollor is yours