drizzygs3

Hello.

I installed a new header back (obx) system on my car. The downpipe has 2 cats on it. I am getting exhaust fumes in the cabin quite severely which is getting me dizzy every time i drive the car. Can someone give some insight to how this may be possible? I have not driven the car in weeks trying to figure it out. maybe the air fuel ratio? No leaks. I got a cel for EVAP.

ThomasGS4

iTrader: (19)

Not sure what it could be other than a leak.

drizzygs3

The gaskets were not OEM but everything is new and the mechanic said it is all sealed, no leaks. And this is heavy fumes. Do you think the cause is that because it is all aftermarket that the 02 sensors are running the car way off the AFR required for complete combustion? I got a SAFC but do not know if I should spend that money to go through with that. I just need some other advice from this forum because half the mechanics around here seem to have no idea what they are talking about and cannot answer this question.

Thanks.

Revive

iTrader: (1)

My bet is on exhaust leak somewhere on the header (either head-mani or mani to mid-pipe).

GSTim

iTrader: (1)

I 2nd the exhaust leak. If this happened after the exhaust/header install. Something related to the install. Same goes for the evap code.

drizzygs3

Ok cool. I will talk to him again but he guaranteed me that there are no leaks. I will try seafoaming it in front of him.