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Thread: p 1631 code

  1. #11
    Lifetime Member schwoch1's Avatar
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    Most GM's are the ten minute cycle... Waiting out a Malibu after lock cylinder replacement as we speak.....
    Most of them go as follows.... turn key on, attempt to start, vehicle will not start, theft light should be flashing. Wait ten minutes or so until theft light goes out. Shut key off, wait two minutes, turn key on and attempt to start vehicle, should start then, if not leave key on again until theft light stops blinking. Sometimes it will take in 10 minutes, sometimes it will do the long cycle that takes a half hour or three attempts!!
    Hope this helps!!
    Mike
    Current toys are as follows:
    1961 Chevrolet Corvair Monza, 145 H6/powerglide. 85 HP of raw fury.... slow and stock and staying that way!
    1969 GMC 2500, 4-53T Detroit diesel/Fuller 10 speed on late model 1500 HD frame
    1970 GMC 9500, 6-71 Detroit/Fuller 13 speed, not sure why I bought it, but it sure is noisy!!!
    1975 Ford F100 shortbed. Currently undergoing Crown Vic subframe swap and EFI 4.6!!!
    1975 Chevrolet Vega, 5.3/200-4R may finish someday, maybe...

  2. #12
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    well that took care of it thanks a lot now i will get my wide band installed this weekend and start logging
    Donald

  3. #13
    Lifetime Member schwoch1's Avatar
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    Quote Originally Posted by MECHAN12 View Post
    well that took care of it thanks a lot now i will get my wide band installed this weekend and start logging
    Donald
    Glad to help, let us know how the logging and tuning goes!!!

    Mike
    Current toys are as follows:
    1961 Chevrolet Corvair Monza, 145 H6/powerglide. 85 HP of raw fury.... slow and stock and staying that way!
    1969 GMC 2500, 4-53T Detroit diesel/Fuller 10 speed on late model 1500 HD frame
    1970 GMC 9500, 6-71 Detroit/Fuller 13 speed, not sure why I bought it, but it sure is noisy!!!
    1975 Ford F100 shortbed. Currently undergoing Crown Vic subframe swap and EFI 4.6!!!
    1975 Chevrolet Vega, 5.3/200-4R may finish someday, maybe...

  4. #14
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    oh i will i am sure i will have at lest a 100 questions before this is over lol
    donald
    thanks again for the help

  5. #15
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    oh i will i am sure i will have at lest a 100 questions before this is over lol
    donald
    thanks again for the help

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