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computer plug in

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by bigdaddy89, Apr 14, 2001.

  1. bigdaddy89

    bigdaddy89 1/2 ton status

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    I have an 89 blazer with the 350fi AT. I am having a problem with the motor not getting full power at take off, but when I put my foot into it a little it wakes up. I want to check the codes on the computer, but I can't remember which 2 holes I need to plug into under the dash. Can somebody tell which ones, and the process the check the codes. Thanks.

    GOT ROCKS?
     
  2. Chris Demartini

    Chris Demartini 1/2 ton status

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    <font color=blue>Is the check engine light on? If its not you wont get any codes. Heres where you jump the terminals. I have the whole list of codes too if you want it.

    [​IMG]

    [​IMG]
     
  3. bigdaddy89

    bigdaddy89 1/2 ton status

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    Thanks for the diagram. I thought those were the ports, but wasn't for sure.

    GOT ROCKS?
     
  4. timebomb1602

    timebomb1602 1/2 ton status

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    just use a paper clip to jump the ports it works like a charm!!

    <font color=red>1991 GMC Jimmy 350tbi 3.42</font color=red>[​IMG]
     

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