st185rios05
New member
i have a 90 alltrac just swapped it with jdm 3s runs great but occasionally loads up and fouls plugs gotta pull and clean them to get it to start. the oem 3sgte that was in there had pigtail for another o2 sensor. i have a down pipe on it and i have that hole plugged right now. is the jdm computer looking for a downstream? im using usdm harness of jdm 3sgte from same year