Will exhaust leak AFTER 02 sensors cause bad readings?
 

Will an exhuast leak right after the O2 sensors cause a problem? I have 93 stlye SLP headers with the y-pipe, I have a slight leak at my y-pipe (do-nut gaskets) will this throw the readings off ?

I have new fel pro gaskets ready to replace, But I'm curious as to what it would affect either way...


Thanks in advance...

-Keith

Depends how close the leak is to the O2's. If it's within something like 8 inches, it could have an effect.

what kind of effects could it have?

your car would run rich. The oxygen from the leak makes your car think it is way lean, so it adds fuel

i do kinda smell fuel in the exhuast fumes....

i have a leak before the o2 on the passenger side header bolt.my car is running crazy rich and runs like crap.my idel is all ****ed up.i dont think if the leak is after the o2 it will cause it to run rich

yes it will