My '96 mark VIII now has 213640 mi and the check engine light came on steady after doing the on and off thing for a couple weeks and the car has started to idle a little rough at times. Took it in to see what codes were there and the following were pulled:
P0720 output speed sensor circuit fault
P0133 HO2 1/1 circuit slow response
P1131 HO2 1/1 sensor indicates lean
P1270 engine RPM/speed limiter reached
the mechanic who looked at this said the last Mark he saw with this set of codes was having a wiring or PCM problem and told me to take it to the stealer to get the PCM checked out by their computer.
Any other ideas?
need to take care of this by May to pass smog, a car killer here in California
P0720 output speed sensor circuit fault
P0133 HO2 1/1 circuit slow response
P1131 HO2 1/1 sensor indicates lean
P1270 engine RPM/speed limiter reached
the mechanic who looked at this said the last Mark he saw with this set of codes was having a wiring or PCM problem and told me to take it to the stealer to get the PCM checked out by their computer.
Any other ideas?
need to take care of this by May to pass smog, a car killer here in California