The truck acted like it ran out of gas,I put some in it( just in case the guage was wrong). I could get it to run by dumping it directly into the intake.I had a crank sensor go out on me once before and it sure is acting like that again.The engine didn't code so I can't tell for sure if that is the problem.I put a ohm meter across the red and black and it shows open. How can I confirm that the sensor is bad?I don't want to just throw parts at this.
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You may need a shop manual for this one.
Code 1391 means the crank sensor or cam sensor signal is not steady or dead at times.
The distributor acts as the cam sensor, so it could be that or the crank sensor, or a problem with the wiring harness.
I suspect your fuel filter is clogged. This often happens after you run out of gas because your engine sucks up all the gas in the bottom of the tank where dirt and debris have been collecting for years. I recommend changing your fuel filter and if that doesn't fix your problem, try adding some fuel injector cleaner to your gas.
I have a Dodge Stratus....97....same thing here. Unfortunately, shoddy parts, even from the dealership. I think the best thing is to keep a fresh one on hand. I know that the wiring is garbage too due to how the harness curls up to the sensor. Not much to tell you on this one.
a bad crank sensor or dist pickup plate can cause this.... check the fuses in the fuse block under the hood for any blown ..... a bad auto shut down relay may cause it .....try putting a test light on the green and orange wire and see if it lights up when you try to crank it