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Thread: MAF wiring questions

  1. 03-26-2014 01:21 PM #1
    Chevydillan's Avatar
    Chevydillan
    Chevydillan is offline Senior Member
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    MAF wiring questions

    Wiring my MAF into the 97 harness which is already 411 swapped from the l-31.
    Black wire from MAF goes into c2-57 from the LS harness. That spot is taken by map,EGR,iat low reference. Do I just splice into those wires, say using the EGR wire I no longer am going to use?
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  2. 03-27-2014 12:45 AM #2
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    Chevydillan
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    Think I got that figures out. Now a new problem. It cranks but no start. The fuel pump turns on with the key for a few seconds but doesn't run while cranking? I checked all power and grounds and everything is good. Is there a way to check Ckp and cmp? Seems like it's not recognizing it's turning over. I did try a little carb cleaner down the intake but it still didn't do anything.
    Any ideas?
    I should add this was a running engine when pulled. I reworked the original 97 harness per lextec's instructions and the computer was tuned by him as well.
    Last edited by Chevydillan; 03-27-2014 at 12:48 AM.
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  3. 03-27-2014 09:42 AM #3
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    Chevydillan
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    It's alive! I had a wiring file with 2 wires for the CKP switched. Changed those and BAM. Light right up.
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