DunkinDeezNutz
NAXJA Forum User
- Location
- Boston, MA
98 sport/4.0/aw4. Trans started acting up alittle while ago, It does not downshift properly when cruising around 40mph approaching hills. I have to either mash the pedal to the floor or manually downshift to 3rd. I had a previous check engine light from a bad o2 sensor, once I replaced that and hooked up the scan tool to clear the codes I found a P072 low output speed. In the diagnostics I have input but 0 output. I removed the oss and tested resistance and it is good. I then inspected the wires all the way up to the engine comtpartment and see no damage. I also tested the signal and ground circuit in the white connector to the PCM per alldata's flow chart and I'm getting less than 5 ohms. Then two days ago leaving work I had a crank no start for about 5 mins similiar to a bad CPS and that hasn't acted up again. Is my PCM starting to go bad? I'm not that great with electrical so any help would be greatly appreciated. Im so damn frustrated!:doh:
p.s. Alldata says the OSS has no driveability effects so whats up with the trans?
p.s. Alldata says the OSS has no driveability effects so whats up with the trans?