Question about Dodge Dakota
Before replacing the pump, test the pump thoroughly. The symptoms you are describing are often caused by a PCM problem (odometer to zero, fuel pump warning, sometimes "No Bus" P16xx OBD code doing code scanning and CEL warning).
THe PCM is the main computer module, and among other things send power and data to odometer through a data connection called BUS, and controls the pump.
The pump can be tested energizing it directly and checking if it works without problem for a while. There is no need for testing fuel pressure because the problem is electrical.
If the pump is OK, then problem is PCM.
The PCM is expensive (about $800). The replacement is not expensive (one hour garage or so). The PCM is under warranty for the first 80K miles and 8 years. Since the warranty on the part is just over, I suggest talking to your local dealer before starting any repair or before replacing any part.
If you haven't done it yet, do also an OBDII code scanning. If you drive to the nearest Autozone you can scan the PCM for error codes free of charge.
Here one of the several discussion pages on the problem available online.
Posted on Jan 02, 2011
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Posted on Jan 02, 2017
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