2000 RX300 w/AWD - No Navigation
I have had, what most people refer to as a sludge problem, where oil is passing by the valve guide/seal on the #2 cylinder. Now, after an incident where I lent it to someone, they used regular fuel which lead to more than normal oil passing thru.. The Check engine light was on/flashing, OverDrive wasnt engaging, and an obvious miss in the engine. Pulled the # 2 plug, and deposits as expected on it...
Now, I replaced the spark plug with the #4 plug & coil, put another plug into the #4 cyl along with the #2 coil, and the #2 cylinder still does not fire. Tested by removing the connection on the #4 coil, which resulted in a worsened firing situation, then after replacing the #4 connection, I removed the #2 connection which had a no-change result. The Only trouble code is: "P0302, Misfire detected in Cyl #2"
Would this be an ECM situation, as there may have been an electrode to ground short due to excessive oil build up on the plug?... OR??? After resetting the ECM, OD works till the code comes back on, then no OD