Originally Posted by zipper06
I've got a similar problem with 1993, 3500 crewcab... .... No one around here has a plug in for the computer so i don't know what code it is.
Zip.
You can jumper 2 of the terminals in the diagnostic connector on that truck and count check engine light flashes for trouble codes. Let me know if you need details.
Originally Posted by Rigsby
I would think that anything w/a Cat. & ECU will have O2 sensor... many rigs have (2) O2 sensors.
Most vehicles with V6, 8 or 10 built after 95 (OBD II) have at least 3. There should 1 for each bank near the manifold and one behind each converter. Some have a convertor (or 2) for each bank and some route both banks through a single converter. There should be a sensor at the rear of each converter unless the converters are run in line then it will have a sensor behind one of the converters. I have never seen anything with more than 4 sensors. I have seen some exceptions but this the way most of the OBDII vehicles are set up.
Reading over the 1st post in this thread I noticed you stated it's "missing the 2 sensors aft of the last muffler". Usually the rear sensors are in the pipe right behind the converter not the muffler. You should look to see if it has any sensors behind the converter(s). If it does then it shouldn't need anything behind the muffler.