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Thread: Car is running VERY rich all of a sudden

  1. #11
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    joecar, I'm using a female to female serial adapter I got from radioshack. no analog signals are being used.

    mr.prick, I'm pretty sure the WB is hooked up correctly. I had a hell of a time getting the LC1 setup and operating the way it should but I'm sure its set to gas 14.7afr. I might try another recalibration ( I only did about half a dozen so far) to be sure the HUGE a/f swings aren't a miscalibrated sensor. it does hover around 14.7 a few minutes at startup and while I'm crusing but its not nearly as steady of a reading as my LM1 is.

  2. #12
    Lifetime Member Chevy366's Avatar
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    Use "serial" with the V2 , LC-1 combo , the LC-1 1.10v firmware is flaky in analog form .
    Hmmm , like joecar says in a CO3 the O2s are only active if you have a semi-open loop mode enabled .
    No DTCs ?
    2005 1500 HD , Custom OS3 SD tune .
    2006 Trailblazer
    Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .

  3. #13
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    ^^ how would I know if semi-open loop mode enabled... can't that be figured out by looking at the log, it doesn't appear that the o2 voltages move that much.

  4. #14
    Joe (Moderator) joecar's Avatar
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    female-female won't work... you need a null-modem adapter... see this:
    http://www.sfcable.com/cable/p/30D1-C1-S.html
    showthread.php?p=80536 post #2

    Or get a pre-made LC-1 serial cable from TAQuickness:
    showthread.php?t=8858




  5. #15
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    ^ that pic looks exactly like the adapter I have... except I don't know if it says null modem on it, I don't think it does. So I guess that means I've got the wrong adapter, bummer. I'm going to order the one from the link you posted right now, THANK YOU!

  6. #16
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  7. #17
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    will this one work? It says null modem adapter but I think its male on one side and female on the other... not 100%

    http://www.radioshack.com/product/in...&tab=techSpecs

    sorry for all the questions.

  8. #18
    Joe (Moderator) joecar's Avatar
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    See how the null modem adapter crosses pins 2 and 3...


  9. #19
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    I'm an idiot sometimes... thanks for the HUGE pic

  10. #20
    Lifetime Member Chevy366's Avatar
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    Get the LC-1 cable form TAQuickness , direct connect .
    2005 1500 HD , Custom OS3 SD tune .
    2006 Trailblazer
    Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .

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