burtonmadness Posted May 14, 2022 Share Posted May 14, 2022 Recently had alternator issue and since battery was 4-5 yrs old replaced at same time. (getting good voltage from battery and 14.1-5 from idle to 3k rpm) Engine code P0420 showing and plan to replace the O2 sensors (but don't this this is the cause). So periodically just cruising and not accelerating (mainly at freeway speeds), electricals power off for half a second then i get several lights tests on dash like when powering on. The engine power loss is not readily noticeable. Ideas before i also change the cat and exhaust. Regards Link to comment Share on other sites More sharing options...
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