Having trouble with misfiring cylinder 1,3 and 5

Asked by Jan 18, 2015 at 02:12 PM about the 1999 Lexus RX 300 AWD

Question type: Maintenance & Repair

When the car is idling or going at a slower speed the check engine light flashes and scanned the codes and got 301,303 and 305.  Have changed O2 sensors, plugs, coil packs on those 3 cylinders only, MAF, valve timing solenoid and I still have a skip

2 Answers

72,515

Run a compression test. I'm thinking a blown head gasket. Could also be faulty fuel injectors as well. HTH. -Jim

2 of 2 people found this helpful.

i replace fuel injectors and coils so far.

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