what is code po440 on a 1997 gmc jimmy

Asked by Apr 26, 2014 at 08:56 PM about the 1997 GMC Jimmy 4 Dr SLT 4WD SUV

Question type: Maintenance & Repair

my check engine light is on had the computer read and its showing code po440 and
po441 sensor bank 1 sensor 2.what are these and are they easy to repair.

2 Answers

118,925

http://www.obd-codes.com/p0440

8 of 8 people found this helpful.
Best Answer Mark helpful
118,925

http://www.obd-codes.com/p0441

1 of 1 people found this helpful.

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