Question about 1996 Dodge Dakota

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1996 dodge dakota 3.9

I recently bought a 1996 dakota 3,9. I was told it needs a computer...the asd relay was replaced along with the o2 sensors and wiring harnesses about a2 ft from ecm. There is still a heater circuit code for the upstream sensor. Scan data registers 4.5 volts for that sensor. The harness seems to bee wired right. I also have found fuel pressure to be between 6lbs and 10 with a few key cycles. the vehicle only runs for a few seconds and chugs the whole time. It also has a lean code thats how I got the fuel pressure reading. It does have a seperate fuel pump relay which i have switched.

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Sounds like the timing belt/chain has jumped a tooth. If the on board computer were out I am not sure the motor would respond this way. Check timing Good Luck

Posted on Nov 06, 2008


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Posted on Jan 02, 2017


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Why asd fuse keeps blown

You have a Chrysler , dodge , or Plymouth ? ASD Fuse supplies power to ASD relay ,if you have a Dodge , Chrysler or Plymouth vehicle . You have a short to ground , videos on you tube , how to find a electrical short ! ASD - auto shut down , this powers Ignition system , fuel injectors , O2 sensors . A short in any one of these systems will blow the fuse . O2 sensor wires get melted on exhaust pipes an manifolds ! That is if you have one of these make vehicles !

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Have you checked base fuel pressure with a gauge ?
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Try switching the ASD Relay for another relay in the Fuse Box in the Engine Compartment. If the ASD Relay fails it cancels the power to the Hall Effect & Fuel Pump.
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I was driving when my 96 dodge dakota quit running. i tested the fuel pump it was good so i put a ecm on still won't fire and the fuel pump does not run and what is the shutdown relay for

the crank and cam sensors send ref. to the pcm. if they are bad the truck will not start. the asd relay should be the same as another. if you feel it may be the problem...try switching it with one of the others. maybe the ac clutch relay.

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Go to Auto Zone and they will scan your computer for fault codes for FREE. No need to guess and waste money you see on items not needed

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