IS-Fly168

iTrader: (1)

Hi guys,, I need some help with an 01 rx300 that I am trying to figure out.. My uncle just picked up this 01 rx300 and the cel came on with 9 codes.. it was misfire for bank 2,4,6, and random misfire and air fuel metering.. etc... I changed all 6 plugs since the car had 120k on it.. cel still on for misfire on cylinder 2,4,and 6... so I put 3 new coils in,, no good,, cel still comes on.. I read somewhere on this forum that new coils are not necessarily the problem but an Oil Control Valve?? can someone confirm with me on this?? need to get this Lexus running back asap.. car hesitates and bogs when cel light is on 15mins after I clear the light... Anyone can chime in??

Lexmex

Need to see the exact code numbers to help you better.

IS-Fly168

iTrader: (1)

HI,,thanks for the reply,, the car is not in front of me now,, but i remember it was a P0302 p0304 p0306 and one for random multiple misfire,, with might be a p0300

thomas1

Could be a dirty Oil control valve.but usually that throws a different code also...

sktn77a

iTrader: (2)

If you have a bad coil, believe me, you can feel it! And if the coil is bad, the problem doesn't go away until it is replaced.

IS-Fly168

iTrader: (1)

I took out the oil control valve and tried spraying it with carb cleaner.. this car is so weird,,, the car runs like normal,, no hesitation no shake nothing,, but drive it for 10-15mins or so and the cel comes on the car hesitates, bogs,, idle drops,, seems like it wants to die.... I tried changing all 3 of the front coils and the same thing happens.. Like I said,, changed all 6 plugs.. no good, changed all 3 front coil,, no good,, added fuel injector system cleaner in gas tank,, no good, and now took out oil control valve to clean and no good again.. I am zeroing down to this oil control valve, theres a high chance that its not working and cleaning it up is not doing it.. I dont know if I should order it or not cause there is a no-return policy on this item from the dealership if it doesnt solve the prob... sigh......

Lexmex

The OCV has a particular OBD2 code, 1656 or 1663.

carguy07

What was the fuel metering code?