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17:46:34 - 11/14/2024
V6 Dakotas
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George
Dodge Dakota
JOIN HERE
12/27/2004
23:42:09
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 Subject: Dakota non starter
IP: Logged
Message:
1993 Dakota 3.9 V-6 CC, Life was good until it quit one night while on the highway. After a flatbed ride home I changed the fuel filter on the frame rail and then it would run and stall after a minute of starting. I read a lot of posts which led me to the IAC control, I removed and cleaned that item, again it would only run about a minute or two, starting normally, then it would begin to hunt between 200 and 1200 RPM until it stalled. I swapped the fuel pump, A/C, ASD and starter relays all around with no change. I installed a pressure gage on the fuel manifold and read no pressure when I turned the key to on. I removed the fuel pump assembly and installed a new assembly, turned the key to on and no pressure! I removed the fuel pump relay, verified it works. I jumpered pins 87 and 30 and got 40-42 psi. The engine cranks but doesn't start at all now? I'm wondering what sensors (O2, crankshaft position indicator, etc.) may cause this kind of failure?
Thanks for any suggestions!
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J and J Auto
GenII
12/28/2004
11:39:54
| RE: Dakota non starter
IP: Logged
Message:
Computer plug unplug
Top left #1 pin to 20
Next row 21 up
next row 41 up
Looking over pass fender straight at comp plug
Pin 3 Batt always on
pin 9 Ign comes on with key
If not wire bad about a foot back in wire harness
red wire to 3 smaller wires is bad remove
connecter and solder all togather
If these work check
pin 51 ASD ground back to the farthest to left on
relay plug must have contineuity, farttest right
on relay plug power on with key
Pin 57 ASD sense
Farthest away towards engine must have cont.
this standing on drivers side looking over fender
into power dist box
The fuel,ADS relays will not have a ground untill
the motor is cranking and pin 57 sense the ASD
relay has come on
Larry
J&J Auto
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George
Dodge Dakota
JOIN HERE
12/28/2004
12:45:47
| RE: Dakota non starter
IP: Logged
Message:
Thanks Larry. I pulled the connector and there is no voltage at pin 3. There is 12v at pin 9 when the key is on. I opened up the harness looking for the red wire and the splice. I could only find a red wire with a white stripe, no splice. To be clear, this is the harness for that 60 pin connector, right? I did find a splice a foot back, it is 3 into 1 and it is for the black wire that grounds to the fender wall, that's all I found. Beyond that the harness splits and there are 2 smaller harnesses that go into rectangular plastic connectors, is that where I should be looking? This truck date of manufacture is 9/92, vin 1B7FL23X2PS137302.
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George
Dodge Dakota
JOIN HERE
12/28/2004
16:09:34
| RE: Dakota non starter
IP: Logged
Message:
Found the bad splice, on the drivers side it was actually under the power distribution box, completely corroded and disconnected. re-spliced the wires and verified power at pin 3 on the computer plug. Problem solved, starts, runs like before. Life is good!
Thanks again Larry for the direction and support, this is a great forum!
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