2002 civic coupe ECU help!!!!!!! - HondaCivicForum.com


ECU Tuning & Fuel Management Discuss electronics and related components within.

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Old 06-20-2018, 07:50 AM
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Angry 2002 civic coupe ECU help!!!!!!!

I can't get rid of code PO131. CHANGED SENSOR TWICE, checked harness for power, it gets power, sensor heater is good, but the sensor GROUND goes high then changes to low, then goes high.
is my ECU fried??????

anyone with same problem?
how did you fix it, or can I double check the sensor with new steps from a professional from this forum?
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