O2 Sensor Head Gasket

I have also been getting oxygen sensor codes being thrown every month or so the check engine light typically goes away.

O2 sensor head gasket.

Kax 234 4209 oxygen sensor original equipment replacement 234 4209 heated o2 sensor air fuel ratio sensor 1 sensor 2 upstream downstream 1pcs 4 4 out of 5 stars 16 26 99. So before replacing any of these sensors you must first find the real problem that pushed you in that direction. The missfire is caused by ignition sys leak or compression problem the o2 sensor only reports the amount of o2 in the exhaust if it is fouled it can cause the engine to go ritch or lean and affect a lean or rich missfire so if you have a check engine light find out. More than likely the fuel lines were removed or replaced which triggered the o2 sensor to go off.

Oxygen sensor is just that it detects oxygen in the engine. I m worried that i have a blown head gasket that is leaking slowly out of that corner of the head. Oxygen sensor o2 what else could cause rich or lean codes replacement of a good oxygen sensor o2 is a common mistake made by diy mechanics all the time. If its a coolant type leak.

The code indicates the o2 sensor is on the same side of the engine that i see burnt coolant.