I can't find my Oxygen sensors for Bank 1. They are supposed to be off the manifold but I cant find them...before the catalytic converter.
Apr 3, 2006 at 9:43 AM
Locate the Bank 1 oxygen sensor in the exhaust manifold close to the engine, before the catalytic converter. The other sensor is just after the catalytic converter. They are the only exhaust parts screwed in with wires attached.
The owner of a 2001 Mazda B4000 cannot find the Bank 1 oxygen sensors and expected them off the manifold before the catalytic converter. The expert says Bank 1 is close to the engine, likely in the exhaust manifold, while the other sensor is just after the catalytic converter. Both are the only components screwed into the exhaust with wires connected.