On Thursday night of last week on the way home my Check Engine Light came on. There were no problems with temp, oil pressure or general operation of the vehicle so I scheduled the 80k service appointment :-(
A friend at work has a had held diagnostic computer which we hooked up to my 99-LX470 and the scan reported error code p-155 02 sensor heater circuit malfunction bank 2 sensor 1.
His guess was that the oxygen sensor on the drivers side of the exaust manifold has gone bad. He get the light turned off but it has come back while driving home last night?
Does anyone else have any addition insight into this problem?