Re: "88 GMC C2500 - ESC Module, issue?
The TPS is good / adjusted on the high side. The ESC also showed problems, as per a Snap On code reader. There's about 5 components that can affect the code.
( code was cleared)..... The truck lost ignition for 5 seconds, causing the code, but a TSP will not create that symptom.
An OBD 1 system is like a house. A code will tell you what room in the house is in defect, but sometimes it WON'T tell you what, "in the room is bad"....
( I do not see a OBD1 code specifically for an Electronic Spark Control module)
....unless it is described differently in the list?
( I appreciate the ideas..... just trying to solve this)
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