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Thread: 1990 FI 2.4 running rich No Codes Though

  1. #1

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    I.D.K.?

    1990 FI 2.4 running rich No Codes Though

    Hey Er'body. My 1990 FI 2.4 is running rich. No Codes Though. I rodded out the cat to free up the motor. As well as added an electric fan. Previously, I thought the cat was clogged because of the smell.
    Any ideas on how to fix the issue?

  2. #2

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    It's going to smell worse without a cat.

    How old us the O2 sensor?
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  3. #3

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    That, and check the throttle position sensor.
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  4. #4

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    Mine has been the same way. Smells bad. I thought about removing the cat, thinking that was it. I may still do that. Mine started a few weeks ago, I didn't drive it all winter.

  5. #5



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    could be the caps in the ecu if its running rich
    Pennyman1
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  6. #6

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    1990 Dodge Ram 50
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    Yeah i vote ecu. Not too hard to pull it out and open it up and give it a good visual check.

  7. #7

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    I.D.K.?
    Looks Like I will be pulling the ECU this weekend

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