Question about 1996 Ford Explorer
What parts do i need and will the check engine light go off
P1131, Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1 ...
MOST LIKELY THE UPSTREAM (BEFORE THE CATALYTIC CONVERTOR) O2 SENSOR IN BANK ONE IS DEFECTIVE, ALSO CHECK FOR ANY ENGINE VACUUM LEAKS, A CAN OF CARB SPRAY HELPS TO SHOW IF ANY LEAKS ARE PRESENT, THE IDLE RPM WILL INCREASE WHEN THE CARB SPRAY HITS A LEAK, IF NO LEAKS FOUND REPLACE THE BANK ONE O2 SENSOR.
Posted on Dec 13, 2008
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Posted on Jan 02, 2017
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