1998 Dodge Dakota possible pcm?

1998 DODGE DAKOTA
119,000 MILES • 6 CYL • 2WD • AUTOMATIC
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D-BAR
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My dakota when the moisture level is high like when it rains quite a bit the speedometer will jump up and down between 10 mph to 120 mph,and the transmission will jump in and out killing the motor.the engine light will come on for a while, off a while wet or dry outside.I've allready change the speed sensors on both the transmission and the rear end.could this be a bad PCM?
Feb 2, 2010 at 12:13 PM
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CARADIODOC
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The speed sensor on the axle is for the rear wheel anti-lock brake system, nothing more.

When the Check Engine light came on, a diagnostic fault code was memorized in the engine computer. You should find out what the code is. That will indicate the circuit or system with the problem. Do not replace the computer or disconnect the battery because that will erase the code(s) and the valuable information will be lost.

caradiodoc
Feb 2, 2010 at 6:22 PM
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