Quote:
Originally Posted by ls1nova71
The ALDL connector is part of the dash harness in a factory vehicle, if you're modding a factory engine harness to stand alone, then you will have to add it. Its pretty simple just a constant power a couple of grounds and a single data wire to the PCM.
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Could you tell us which wires? I have the 5.3 and I want to modify my harness. You said a single data wire but I see data wires for blue pin outs 14, 15, and 58. 58 says data to obd2 but the others say data too. What do th other two do? Please clear this up for me. I used this
http://www.lt1swap.com/99-02_vortec_pcm.htm
Thanks