replaced all spark plugs, boots, wires, 2 coils, & airflow sensor.. still has slight misfire cylinder 5. Added some fuel cleaner to gas. Car ran great for a few days,. went to start car yesterday has

Asked by 1stlexus4me Dec 26, 2015 at 09:43 AM about the 2002 Lexus GS 300 RWD

Question type: Maintenance & Repair

3 5 & 6 with bank 1 sensor 2 codes. Could the 02
sensor be causing all of this misfire and car running
rough?

1 Answer
224,145

Rowefast answered 8 years ago

Yes sounds like an 02 sensor, bank 1 sensor, shoot over the codes,

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