Quote:
Originally Posted by Warwicke36
Is your loss of power coming on at the same time that the cat codes trigger the CEL? If so I would consider upstream O2 sensors or fuel control causes (vacuum leaks, mass airflow sensor, worn ignition components). Check your fuel trim numbers. Are the P0420 P0430 codes the only ones you get?
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at the time of the power loss, zero codes. the CAT codes come later, when car is driving ok. my LT fuel trims are ok as well -2 and 2 .
YES the p0420 and p0430 are the only codes i get, i erase them..they stay off till another hihway drive. they dont come out within the city.
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