curtisboyte

Hey guys, i have a 93 GT with gas fumes pretty bad while cranked. The engine runs great and i pulled the codes and nothing at all. My question is can you have a bad 02 sensor and it not show up on a engine code? Or do i have another issue. Thanks Curtis

AdderMk2

a bad O2 will not always be reported with engine codes.

curtisboyte

ok. i will replace and hope thats it.Thanks

ZoSo15

Gas smell from the exhaust or from the cabin?

Could be fuel lines or the vacuum hose that goes to the charcoal canister.

mattdel

The engine doesn't use feedback from the o2's while cranking. If you have gas smell while cranking, you have no ignition.