Ive had a small exhaust leak in the flex pipe for about 2 weeks now, anyways, i had to go get my emissions done today so i just figured id see if it passed. Well, it didn't both my n0x and c0 levels were too high. I've cleaned out my egr system, checked vacuum leaks, have not checked my 02 sensor. I also just replaced my head gasket recently and didnt find any mechanical issues internally.
What are the chances of the failed emissions being from the exhaust leak at the flex pipe or a bad catalytic converter? Or could i be running too rich?
EDIT: I took another look at it and ran it for a while, it almost seems as though the catalytic converter is clogged but still not completely sure
What are the chances of the failed emissions being from the exhaust leak at the flex pipe or a bad catalytic converter? Or could i be running too rich?
EDIT: I took another look at it and ran it for a while, it almost seems as though the catalytic converter is clogged but still not completely sure