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1998 Lexus GS400 Question: 98 lexus gs400 codes po300,301,303,305,307 and 1349, can any body advise

 

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jperez5409, 4.0L V8, Gardena, CA, November 28, 2012, 18:53
 Rookie

i have a 98 lexus gs 400, its idleing rugh and running the same way, it has 173000 miles. I'll really apreciate it if anybody can advise what may be the problem

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  • Answer #1

    Greg's Orange Auto (14224 Answers) , Orange, CA - (714) 361-9386
    globalhelper November 29, 2012, 06:42
     Master

    you have misfirss on almost every cyl i rec a diag from your mech instead of guessing.

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  • Answer #2

    April 19, 2014, 08:48
     Rookie

    the left cam is out of time. the timing belt jumped or the VVT solenoid is bad ,that's on top front of the valve cover with a wire connector going into it. Lastly it could be the cam tube gears are stuck but that's the last thing it could be .

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