1997 plymouth vovager se 3.0 van runs great upon initial startup but soon after dies no difference in what speed you are running 35 MPH or 70 MPH just shuts down like you turned it off will restart after a few minutes and problem persist at idle or running just quits , replaced fuel filter no help there engine codes 12 ,42 ,11 .55
Code 42 is the (asd) automatic shutdown driver,there is an open or a short in the relay circuit, and I don't have my manual to tell you where to look, have it checked.
Code 11 is no distributor signal during engine cranking.
Code 12 is battery power to computor disconnected in last 50 to a 100 cycles; memory standby power lost.
Code 55 is end of code output. These are what my code manual is showing. That shutdown driver should be checked. Hope this helps.
Have your crankshaft sensor checked. I had the same problem with my van. After trying to fix it myself with a new computer, distributor, fuel pump and filter, and oxygen sensor, I ended up taking it to my mechanic who owns the same van. He immediately told me it was the crankshaft sensor and he replaced it and it runs great now. It cost me around $85 for parts and labor.
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Bingo crankshaft sensor 1200 miles and running great since replacement
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