Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
the stall problem ??? hi sir it sounds to me like a maf problem possibly which is what tells your engine the load perameters placed on the e3ngine at any given time such as accelerating or going up a hill there might be a diagnostic process for that truck it is pre obd 2 so that may consist of finding the right plugs under dash or shorting a connector out under dash with paper clip the lights will flash a code and that might give you direction I am kind of a beginner but there is expert advise on this forum the moderators are some of the best try bbb industries for a schematic if you need one on that old of vehicle the reference voltage may be a round 8 volts but I am not sure about that another possible problem is one of your sensor is short to ground which will pull down your whole system it doesn't sound like a fuel delivery problem first thing I woukld do is research how to pull codes from that particular vehicle
Last edit: 7 years 6 months ago by chief eaglebear.
Okay, I will need to back up. My truck uses an OBD1 diagnostic but the screen is blank so the plug is not connecting with the ECM. Also, the check engine light does not work. The experts tell me the CE light will not burn out, it is made to last forever. To change the bulb would take several hours as I would need to take the dash out.
Considering the purpose of the check engine light it would be a serious mistake for it not to be a forever bulb.
So now I am down to finding a short in a wire from the ECM to OBD1 plug and light. I have looked. Help finding it would be great.
The problem started like this: It sputtered and coughed a couple of times one day then the next day a few more.times, the third day more. It gradually got worse each day until it is now so bad I can't "get by" with adjusting the throttle cable bracket.
I feel confident that the OBD1 reader will work IF I can find the problem with the broken or loose wire first.
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