Question about 1998 Dodge Dakota

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3.9 v6 4x4 check engine light, runs rough

Hello, Originally the truck was blowing out black smoke under high accelaration, it ran rough not stalling, engine light was on. The truck had recent tune up and i changed the plugs, the 2 oxy sensors were replaced and the intake manifold gaskets. The service engine light came on with 2 codes, lean and bank 1,,,, Once the truck is warmed up it starts to run rough, the exhaust has a strong rich/lean odor. One suggestion that i was givin is to replace the computer. the fuel pump pressure is 47, and the smoke test showed no signs of vacuum leak and i do not see the black smoke, it seems to lack power, not a very smooth acceleration and is poor on gas mileage. I have this posted on fix ya with another 98 dakota with a similiar problem.

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  • muzby Sep 03, 2008

    I replaced the ect temp sensor and it did not correct the problem, I spoke to a few people and they said possibly the cat convertor, I brought to a shop and found a leak by a loose clamp and the convertor was no good. I replaced and cleared the codes and I ran it up to inspection and passed.

  • Anonymous Mar 30, 2014

    blowing black smoke when running lack of power loading up with gas no codes come up

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  • 373 Answers

Replace the ECT sensor.
And letme know. If you feel any diference. ok.

Posted on Aug 16, 2008

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