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Thread: TrailblazerSS 6.0 into 73 Chev PU... no spark

  1. #1
    Senior Tuner
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    TrailblazerSS 6.0 into 73 Chev PU... no spark

    JB_Chad_73_Chev_08_Chev_01Tune.hpt

    Cannot get spark from coils. Thinking its security related. Hit all DTC's we can find that relates to it. Anyone have any insight as to where we should look here? The DTC's we are getting when cranking are p0016 and p0615. We pulled spark plug and tested for spark and we are getting nothing. The column is original to the '73 so need to know if there is some form of security we are missing. There is no BCM in this truck... Because the dash is not current, we cannot see if the security is being activated or if we need to look somewhere else. The Wiring Harness is from Painless if that helps at all
    Thanks for looking guys
    2000 Trans Am WS6

  2. #2
    Advanced Tuner Shrek's Avatar
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    VATS (VATS 1 & VATS 2) and Starter Checks are still Enabled. These need to be set to Disabled, followed by a Write Entire.

  3. #3
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    We realized we missed that a few mins ago, just did that before seeing your post actually, still no spark
    We just checked to make sure fuel pump is staying active during crank and pulse width is 12.5 while cranking
    Last edited by MMGT1; 04-19-2014 at 05:58 AM.
    2000 Trans Am WS6

  4. #4
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    Well after 12 hours of that truck yesterday we think we found it. Looks like the engine is a year older than he though it was.... Let it crank over for a while at the end there watching DTC's and it finally popped the correlation code for crank to cam. The only thing that can make that happen is it has to be more than 11* out. Bingo, bango... looks like we have a 24 tooth reluctor wheel instead of a 58. Header and starter coming off this morning to confirm. Sucks.... harness, computer, everything was built around it being a 58. Two pretty sad dudes there last night I tell ya.
    Last edited by MMGT1; 04-19-2014 at 06:03 AM.
    2000 Trans Am WS6

  5. #5
    Advanced Tuner HartRod's Avatar
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    That suxs....
    69 Suburban Bagged & Blown: http://67-72chevytrucks.com/vboard/s...d.php?t=200387
    68 Farm Truck build thread-LS3/6L80/TVS1900: http://67-72chevytrucks.com/vboard/s...d.php?t=358692

  6. #6
    Quote Originally Posted by MMGT1 View Post
    Well after 12 hours of that truck yesterday we think we found it. Looks like the engine is a year older than he though it was.... Let it crank over for a while at the end there watching DTC's and it finally popped the correlation code for crank to cam. The only thing that can make that happen is it has to be more than 11* out. Bingo, bango... looks like we have a 24 tooth reluctor wheel instead of a 58. Header and starter coming off this morning to confirm. Sucks.... harness, computer, everything was built around it being a 58. Two pretty sad dudes there last night I tell ya.
    Thers a conversion box for that issue. from lingenfelter
    09 Pontiac G8GT LSA conversion & cammed (HP Tuned)
    07 Trailblazer SS Cammed & Nitrous Fed (HP Tuned)

  7. #7
    09 Pontiac G8GT LSA conversion & cammed (HP Tuned)
    07 Trailblazer SS Cammed & Nitrous Fed (HP Tuned)