Check egine light /codes

Tiny
SHC00
  • MEMBER
  • JEEP CHEROKEE
2002 jeep grand Cherokee limited / 175000 miles / 4.7 v8.

while driving car engine started to run rough and check engine light came on, after a few minutes engine seemed to return to normal but check engine light still comes on with same codes after erasing codes.
P0031- O2 sensor heater control circuit ( bank 1 sensor 1) light?

P0051-O2 sensor heater control circuit low(bank 2 sensor 1)
P0108 (M)- manifold absolute pressure/barometric pressure circuit high input
P0132(M)- O2 sensor circuit high voltage (bank 1 sensor 1)
P0136- O2 sensor circuit malfunction ( bank 1 sensor 1)
P0171 (M)- system to lean (bank 1)
P01499- manufacture control emissions

after inspection found that the 15amp O2 sensor fuse had blown. Up on replacing fuse engine again became rough running, took fuse out engine ran better.

what procedure do you recommend for addressing these codes and check engine light? I feel that because one thing failed it triggered the rest of the codes. What do I replace first
Thanks Steven :cry:
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Friday, October 26th, 2007 AT 10:30 AM

1 Reply

Tiny
2CARPRO JACK
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Might be a shorted o2 sensor wreaking havoc on the whole system. Try unplugging all o2 sensors and starting it, if it runs ok, then turn off and plug sensors back in and run it one at a time
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Friday, October 26th, 2007 AT 3:17 PM

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