code p1441 on 1996 Buick Park Avenue

check engine light

by in Atlanta, GA on March 03, 2010
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1 answer
ANSWER by , March 03, 2010
Code Definition: Buick: Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2 This is generally due to a failed Oxygen sensor heater. The heater is part of the O2 Sensor and is similar to a cigarette lighter, when current is applied to it, it heats up. A quick check of the power and ground signal to the sensor, and a resistance check of the heater circuit will reveal the problem.