I have a 1999 Lexus e300 check engine light comes on runs rough then goes off runs fine. TRook it in to the shop changed cyl 1 and 3 egn coil 3 months later same thing could it be the computer?

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Asked by Jan 20, 2014 at 08:01 PM about the 1999 Lexus ES 300 Base

Question type: Maintenance & Repair

The check engine light comes on, the cars runs rough, then the check engine light goes off the car runs fine.  Took it to the shop and they changed 1 and 3 coils, worked fine for two months then the same problem. Could it be the computer?

2 Answers

3,365

no, it wouldnt be the computer. Possibly a oil control valve that adjusts timing for bank 1. Those commonly fail.

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I have the same problem with a 1999 RX300. Did you ever find a solution?

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