I have searched the wiring harness and only found where looks like three wires are going into one and have been crimped together and taped with electrical tape. I reworked all the sensors and replaced the ECM and Catalytic converter, Truck failed state inspection with high HC(PPM) and NOx(PPM) at low speeds everything else passed.
SOURCE: 7 wire harness going to blower motor resistor
There is an updated resistor/connector package. Very expensive from GM, try your local NAPA or other parts supplier for a replacement
SOURCE: I need to know the wiring color codes for a 1993
Please look at page two. It shows most connect cross reference to Bosch Universal 4 wires O2 kit.
http://www.taligentx.com/passat/info/scheduledmaintenance/Bosch-Universal-Oxygen-Sensor-Installation.pdf
SOURCE: abs code co223
if u taped up the wiring so its weather tight and the abs light reset [went out] then u corrected ur problem and should last
SOURCE: emission test 25/25 hc ppm read 00170 allowed
Regards,
Tony
SOURCE: I have a 1988 gmc k2500 with 5.7 tbi. The gauges
Some thing in the instrument panel has shorted out or the wire from the fuse to the panel., pulling to many amps. If you could do without the panel for two days you would find out if it's the panel or the wires before. Electrical problems are no fun. I'm into a Ford that I just got running (second day) And there are still problems. (stupid computers). For the wires a good place to start is behind the fuse panel
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