1995 Volvo 850 Q&A
1995 Volvo 850 Question: Can a Throttle Pedal Sensor be cleaned in a 95 Volvo 850?
Read these links. Will explain the codes. http://www.obd-codes.com/p0120 http://www.obd-codes.com/p0122 I think you are dealing this a bigger problem than the sensor itself. In any case cleaning or adjusting probably wont do you any good. I have a feeling its in the wiring or PCM. - big01_dram