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Thread: Can anyone tell me what these two chips are from?

  1. #1
    Fuel Injected!
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    Can anyone tell me what these two chips are from?

    I have two chips that came with all my TBI stuff for my conversion. The guy i bought it from said one chip was from a 4.3 v6 and one was from a 5.7 v8 both m/t pickup truck... I really dont think this is the case. I have tried the lookup page but it doesn't seem to return info.

    One has BHAN lettering the other has BJYN (supposed 4.3) lettering.. The BJYN runs, but poorly.. looking at the data logs from tuner pro I think its for a v8 as the idle is crazy fluctuate even though the engine is running somewhat smooth, like its missing a couple of cylinder counts.. IDK..could be a mismatched bin file ect.. Can anyone confirm what these chips are from?

    My ecm is a 16196395

  2. #2
    Super Moderator Six_Shooter's Avatar
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    BHAN - 1993 5.7 Auto
    BJYN - 1995 5.7 Man - listed for a 16197427 PCM.
    The man who says something is impossible, is usually interrupted by the man doing it.

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    Ok, that explains A LOT, thanks a million! Where can i find this info at myself?

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    Quote Originally Posted by Six_Shooter View Post
    BHAN - 1993 5.7 Auto
    BJYN - 1995 5.7 Man - listed for a 16197427 PCM.
    I can tell you first hand the BJYN is a 5.7/4L60E 1995 G-van

  5. #5
    Super Moderator Six_Shooter's Avatar
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    Quote Originally Posted by Fast355 View Post
    I can tell you first hand the BJYN is a 5.7/4L60E 1995 G-van
    Could you be thinking of BJYM? BJYM comes up as auto.
    The man who says something is impossible, is usually interrupted by the man doing it.

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    Fuel Injected! brian617's Avatar
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    I'd really like a copy of that BJYN if it were truely a 95 5.7 manual .BIN, but I doubt it is.
    89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
    95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
    05 Outback XT 2.5L turbo gas auto

  7. #7
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    Quote Originally Posted by brian617 View Post
    I'd really like a copy of that BJYN if it were truely a 95 5.7 manual .BIN, but I doubt it is.
    Its a 5.7/4L60E Auto 1995 G-van

    I have 2 or 3 of those memcals in my garage.

    BJYN = LD 350 TBI, 4L60E w/PWM, 3.42 gears, G10-G20 van

  8. #8
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    Quote Originally Posted by Six_Shooter View Post
    Could you be thinking of BJYM? BJYM comes up as auto.
    IIRC BJYM is for 3.73s

    I know for a fact BJYN is a G-van with a 350/4L60E/3.42

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