I have a 99 Dodge Dakota that I just put a crate motor in. It runs grear then it suddenly backfires, dies, spits an sputters, sometimes it starts back up, sometimes it won't.
I've changed the computer, the map
sensor, throttle body sensor, the catalytic
converter, cap and rotor. Had a stage 2
programmer chip hooked to the 1st
computer and not the new one, still does
the same thing either way.
You've spent a lot of money on things without knowing the problem. Why not take it to someone who has a dyno tester? They will find your timing problem immediately. Backfiring is usually due to improper timing, hence, the gas ignites in the exhaust because you have too much overlap or something and too much gas vapor in your exhaust, which is hot and ignites your gas. How has it been timed so far? Did you time it yourself? or someone else? Did you static time it knowing #1 piston was on TDC?
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