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Forgot to mention, had also replaced bank 2 pre-cat O2 sensor (cyl 4-6; it was accidently damaged during downpipe installation). Also want to emphasize, misfire only occurs when engine is cold, almost always on cyl 6. Once warmed up, WOT is fine. Sound like an injector, I know, but injector swap/replacement did not affect the problem.
Last edited by dpaul; 03-11-2018 at 06:13 AM..
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