What does ho2s sensor mean on Ford p1151?
What does ho2s sensor mean on Ford p1151? This does not apply to other makes of vehicles. A Heated Exhaust Oxygen (HO2S) sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time. You will likely not notice any drivability problems. Why does the ho2s sensor indicate lean at the end of the test? A Heated Exhaust Oxygen (HO2S) sensor indicating lean at the end of a test is trying to correct for an over-rich condition....