82-93 02 Oxygen Sensor - Front ( Except Zr-1 )

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The oxygen sensor detects the amount of oxygen present in exhaust gases in relation to the surrounding atmosphere and then sends the signal to the E.C.M. for analysis. Electrical components such as sensors are non-returnable parts. Always refer to a factory service manual when diagnosing
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Description
The oxygen sensor detects the amount of oxygen present in exhaust gases in relation to the surrounding atmosphere and then sends the signal to the E.C.M. for analysis.

Electrical components such as sensors are non-returnable parts.

Always refer to a factory service manual when diagnosing engine service problems. You can damage electrical components if the proper procedures are not followed. Be sure you are replacing the correct part.

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What They Do: Measure the amount of oxygen in exhaust and signal computer to adjust air/fuel ratio.
Failure Symptoms: Low voltage output or slow reaction causes poor performance and economy, high emissions.
Maintenance/Service: Perform periodic emissions checks. Replace according to manufacturer's specifications or every 25,000-30,000 miles. Watch for service flag or Malfunctio
Specifications
GM Item No. 25105901
Base Unit of Measure EA
Net Weight 0.268
Special Order False
Car Years 1 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993
Part # 304644
Search Description SENDER ZR1
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