1st Gen Dakota Tech 1987 - 1996 Dodge Dakota Tech - The ultimate forum for technical help on the 1st Gen Dakota.

1991 3.9 power at coil and squirting fuel but no spark

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Old Nov 4, 2017 | 09:58 AM
  #31  
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Originally Posted by Steelheart93
But the negative side should flash, that's the coil's signal to fire if I'm not mistaken.
Yes, sorry misread your post.
 
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Old Nov 11, 2017 | 09:17 AM
  #32  
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Well, finally found a PCM at a local junkyard the other day. Paid $40 for it only to find that it's junk. Doesn't even light up the CEL when you turn the key on. I did test the trigger wire from the PCM to the coil and it's good. It's looking like I'm just gonna have to come up with the money for a new or reman PCM if I want this thing to run.
 
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Old Nov 11, 2017 | 06:17 PM
  #33  
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Seems like the JY should take back the bad PCM and give you another or refund your money.
 
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Old Nov 11, 2017 | 07:15 PM
  #34  
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Normally I would try but the place I bought it is a really backwoods half-*** operation. Not worth the time to try. I would try to exchange it if he had another one but he doesn't.
 
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Old Nov 11, 2017 | 07:17 PM
  #35  
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One of the Forum sponsors does ECM/PCMs..... they have threads posted here and there, wouldn't hurt to check with them.
 
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Old Nov 11, 2017 | 07:19 PM
  #36  
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Forgot about that, I was going to look into that. Can you give me a lead on where to find them on the Forum? I'm still learning how to navigate the site lol.
 
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Old Nov 11, 2017 | 07:22 PM
  #37  
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These guys. Don't know if they offer any special discounts to forum members.....
 
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Old Nov 11, 2017 | 07:24 PM
  #38  
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Thanks. Gotta get this thing out of my buddy's yard soon. His Mom is tired of looking at it sitting in the driveway lol.
 
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Old Nov 11, 2017 | 07:25 PM
  #39  
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Damn, they don't show anything pre-'96. I'll give them a call on Monday.
 
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Old Dec 23, 2017 | 12:53 PM
  #40  
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Well, it's been a while so hopefully somebody still cares lol. Finally got a new pcm but no change, still no spark. Bought a new ballast resistor but I'm sceptical as to whether this truck even has one, though I bought a new coil as well and it says right on it "use with external resistor". Anybody know where the resistor is mounted? A picture would be awesome if anyone has a similar truck.
 
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