If you have the California emissions package you have 2 AFR sensors (wide band) upstream of your catalytic converter, so one of our Wide Band EFIE?s be needed.
If you have the federal emissions package then you have 1 O2 sensor (narrow band) upstream of your catalytic converter, so one of our single Narrow Band EFIE?s would work. We recommend or new ?Quad Digital EFIE Basic? to work with any narrow band sensor configuration.