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View Full Version : Can anyone tell me what these two chips are from?



scottyd
12-09-2014, 10:20 PM
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

Six_Shooter
12-09-2014, 10:54 PM
BHAN - 1993 5.7 Auto
BJYN - 1995 5.7 Man - listed for a 16197427 PCM.

scottyd
12-09-2014, 10:57 PM
Ok, that explains A LOT, thanks a million! Where can i find this info at myself?

Fast355
12-09-2014, 11:19 PM
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

Six_Shooter
12-09-2014, 11:41 PM
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.

brian617
12-10-2014, 12:00 AM
I'd really like a copy of that BJYN if it were truely a 95 5.7 manual .BIN, but I doubt it is.

Fast355
12-10-2014, 12:01 AM
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

Fast355
12-10-2014, 12:05 AM
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