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Thread: upgrading o.s. ?

  1. #1
    Lifetime Member smslyguy's Avatar
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    Default upgrading o.s. ?

    i updated my 2000 gmc p.c.m to a 2001 o.s. and now after doing the complete reflash my battery ligh in the message center keeps blinking. I know it has nothing to do with the batter or the alternator cause there is a volt gauge on this truck.

    Any clue as to why it flashes the battery light in the message center?
    Last edited by smslyguy; September 3rd, 2009 at 10:38 AM.
    2001 camaro z28 ss vert with factory slp upgrades, Hooker long tubes, 3"y-pipe to a 4" muffler, ,airlid,s.s.r.a. ,t.c.bypass,descreened m.a.f. 232/234 .595,.598 +2 comp cam with ported and polished stock heads with .650 lift dual springs and a bowl grind. tuned with EFI Live. All combined to achieve 29 m.p.g. and 399 r.w.h.p. with 384 lbs of torque. sold...

    Now own a 2015 1LE camaro

  2. #2
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    Open your tune and check under System and see if the ALT L and F settings are different. I am not sure if the System Parameters table is editable or is only for our information. If both tunes have different ALT Terminal settings--Try to edit the Parameters. Let us know how it goes.

    Jeff
    98 GMC RCSB 2WD, Internally stock 305 w/Twin T-3 junkyard Turbos,4L80e,Ramjet intake,42lb.inj., 0411PCM, COS3,4675LBS w/me in it. Best Time on 5 passes-13.01@110

  3. #3
    Lifetime Member smslyguy's Avatar
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    Quote Originally Posted by Lextech View Post
    Open your tune and check under System and see if the ALT L and F settings are different. I am not sure if the System Parameters table is editable or is only for our information. If both tunes have different ALT Terminal settings--Try to edit the Parameters. Let us know how it goes.

    Jeff
    where in a tune is the "system" located? Do you mean right when you open the tune under calibration? And aslo what is the alt L and F settings? Sorry newbie here.
    2001 camaro z28 ss vert with factory slp upgrades, Hooker long tubes, 3"y-pipe to a 4" muffler, ,airlid,s.s.r.a. ,t.c.bypass,descreened m.a.f. 232/234 .595,.598 +2 comp cam with ported and polished stock heads with .650 lift dual springs and a bowl grind. tuned with EFI Live. All combined to achieve 29 m.p.g. and 399 r.w.h.p. with 384 lbs of torque. sold...

    Now own a 2015 1LE camaro

  4. #4
    Lifetime Member smslyguy's Avatar
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    Quote Originally Posted by Lextech View Post
    Open your tune and check under System and see if the ALT L and F settings are different. I am not sure if the System Parameters table is editable or is only for our information. If both tunes have different ALT Terminal settings--Try to edit the Parameters. Let us know how it goes.

    Jeff
    just figured it out after comparing both tunes i did see that the 2001 o.s did infact have an f terminal and the 2000 did not. i will reload the tune and see if this cures the prob. I did however, notice that the o.s i upgraded to is only for a 2wd and i do have a 4wd don't know if this at all matters or not???
    2001 camaro z28 ss vert with factory slp upgrades, Hooker long tubes, 3"y-pipe to a 4" muffler, ,airlid,s.s.r.a. ,t.c.bypass,descreened m.a.f. 232/234 .595,.598 +2 comp cam with ported and polished stock heads with .650 lift dual springs and a bowl grind. tuned with EFI Live. All combined to achieve 29 m.p.g. and 399 r.w.h.p. with 384 lbs of torque. sold...

    Now own a 2015 1LE camaro

  5. #5
    Joe (Moderator) joecar's Avatar
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    Look at G1206 and G1207.

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    Joe,
    Is G1207 an editable table or is it just for information purposes?

    Jeff
    98 GMC RCSB 2WD, Internally stock 305 w/Twin T-3 junkyard Turbos,4L80e,Ramjet intake,42lb.inj., 0411PCM, COS3,4675LBS w/me in it. Best Time on 5 passes-13.01@110

  7. #7
    Joe (Moderator) joecar's Avatar
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    G1206 tells you which row in G1207 the PCM chooses...

    G1206 seems to be editable in my tunetool.
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  8. #8
    Lifetime Member smslyguy's Avatar
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    Quote Originally Posted by joecar View Post
    G1206 tells you which row in G1207 the PCM chooses...

    G1206 seems to be editable in my tunetool.
    yes i did edit mine for the f terminal and i reloaded the tune, but i am still seeing the battery light flashing in the message center.
    2001 camaro z28 ss vert with factory slp upgrades, Hooker long tubes, 3"y-pipe to a 4" muffler, ,airlid,s.s.r.a. ,t.c.bypass,descreened m.a.f. 232/234 .595,.598 +2 comp cam with ported and polished stock heads with .650 lift dual springs and a bowl grind. tuned with EFI Live. All combined to achieve 29 m.p.g. and 399 r.w.h.p. with 384 lbs of torque. sold...

    Now own a 2015 1LE camaro

  9. #9
    Senior Member acomp917's Avatar
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    Hello All,

    Did anyone ever figure this out?

    I'm having the same problem with a 2000 to 2002 flash. I have done a complete PCM pinout on both and an alternator part number lookup for both. Everything is the same. That only leaves the dash message center(unless I missed something).

    I have yet to change the g1207 table. It was late. I will post my conclusion.

    S

  10. #10
    Joe (Moderator) joecar's Avatar
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    acomp917/S,

    Post your tune files.

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