What Chip is This?
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
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From: Cherry Hill NJ
What Chip is This?
About 2 years back, I was told "you don't have the stock chip in your car" when the dealer had to work on my 1992 Vert for an ASR problem.
Well, now that it's time to figure out what I have, it is slow going.
GM says I have "GM Upgraded Chip", but that is all. Markings are:
Delco number BAFL 3867
the only other series of numbers seen are "2245224" and "1172020".
Can anyone shed some light on this?
Well, now that it's time to figure out what I have, it is slow going.
GM says I have "GM Upgraded Chip", but that is all. Markings are:
Delco number BAFL 3867
the only other series of numbers seen are "2245224" and "1172020".
Can anyone shed some light on this?
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
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From: Cherry Hill NJ
It appears that the former owner of the car did have some work done to the top side. He vaguely remembers "something" maybe injectors, he said. Well, it looks for sure that a new chip was part of the deal, but the shop that did the work was not GM and no longer is in business, so I'm not a lot closer to identifying this...
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
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From: Cherry Hill NJ
Originally Posted by bogus
is there a problem?
I am unsure if I have a stock cam or not, if I do upgrade the cam (assuming it is stock) will I upgrade the upgraded chip?
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
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From: Cherry Hill NJ
Originally Posted by ZylaRace
Other similar stock cals: BDBK, BDZP
Are you suggesting this is a stock GM chip,... or an altered GM chip?
Are you suggesting this is a stock GM chip,... or an altered GM chip?
IS there a decoder to go with the cals?
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
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From: Cherry Hill NJ
Originally Posted by ben73
According to CalData the chip is from a '92 LT1 Corvette 6spd.
The odd thing is this, it has an emissions RPO of "NM8" which translates to "EMISSIONS SYSTEM, LEADED FUEL"..
Weird!!
The odd thing is this, it has an emissions RPO of "NM8" which translates to "EMISSIONS SYSTEM, LEADED FUEL"..
Weird!!
Seriously thanks, first off.
Can anyone think why a leaded fuel emission tweak would be there?
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Drifting
Joined: Mar 1999
Posts: 1,931
Likes: 1
From: Norcross GA
Maybe your not understanding,....
It pretty much doesn't matter what the label says,.... if you don't know if it is the stock GM chip,.... anything can be in there. i.e. Any hacker could have changed the contents. You will have to compare the contents with a known stock GM chip. Either that,... or just go on faith that it is a stock chip.
Decoder? What is a decoder?
It pretty much doesn't matter what the label says,.... if you don't know if it is the stock GM chip,.... anything can be in there. i.e. Any hacker could have changed the contents. You will have to compare the contents with a known stock GM chip. Either that,... or just go on faith that it is a stock chip.
Decoder? What is a decoder?
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
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From: Cherry Hill NJ
Originally Posted by ZylaRace
Maybe your not understanding,....
It pretty much doesn't matter what the label says,.... if you don't know if it is the stock GM chip,.... anything can be in there. i.e. Any hacker could have changed the contents. You will have to compare the contents with a known stock GM chip. Either that,... or just go on faith that it is a stock chip.
Decoder? What is a decoder?
It pretty much doesn't matter what the label says,.... if you don't know if it is the stock GM chip,.... anything can be in there. i.e. Any hacker could have changed the contents. You will have to compare the contents with a known stock GM chip. Either that,... or just go on faith that it is a stock chip.
Decoder? What is a decoder?
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
Originally Posted by jimbomill
Leaded fuel, great googily moogily, they went into a 22 year time warp!
Seriously thanks, first off.
Can anyone think why a leaded fuel emission tweak would be there?
Seriously thanks, first off.
Can anyone think why a leaded fuel emission tweak would be there?
Drifting
Joined: Mar 1999
Posts: 1,931
Likes: 1
From: Norcross GA
The 4 letter is a BCC code that id's the chip. As in your case,... shown above,.... 92 LT1 Corvette 6spd. The code tells it all,... body, eng, trans, emissions, gear ratio, tire size
What the tech referred to as an upgrade,.... I'd call nothing more than "another" chip. Better or worse, I wouldn't even speculate.
If the adv spark is true,... that would seem to indicate it is quicker,... depending on the fuel it is burning.
There use to be a few people hosting BCC info,... but I can't find the good ones anymore.
What the tech referred to as an upgrade,.... I'd call nothing more than "another" chip. Better or worse, I wouldn't even speculate.
If the adv spark is true,... that would seem to indicate it is quicker,... depending on the fuel it is burning.
There use to be a few people hosting BCC info,... but I can't find the good ones anymore.
Drifting
Joined: Mar 1999
Posts: 1,931
Likes: 1
From: Norcross GA
BAFL
Mod Yr 1992
Rel Date 10/1/91
PROM ID 3867
ScanID 3861
ECM P# 16159278
PROM P# 16173866
Engine LT1 5.7L
Platform Y B cars ZR1,Vette,Convert
Trans ML9 Manual 6spd
Emissions NM8 (Leaded fuel)
My guess is, you have a stock leaded fuel chip for a 92 stick Vette. Any 1/2 decent tuner would have labeled it, if it was altered. The only way to tell for sure would be to pull it & compare it.
Mod Yr 1992
Rel Date 10/1/91
PROM ID 3867
ScanID 3861
ECM P# 16159278
PROM P# 16173866
Engine LT1 5.7L
Platform Y B cars ZR1,Vette,Convert
Trans ML9 Manual 6spd
Emissions NM8 (Leaded fuel)
My guess is, you have a stock leaded fuel chip for a 92 stick Vette. Any 1/2 decent tuner would have labeled it, if it was altered. The only way to tell for sure would be to pull it & compare it.
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
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From: Cherry Hill NJ
Thank you very much[I] for digging around to get this info!
Now I'm in a interesting position - do I use something like a Comp Cam 304, and leave that chip in? It may work out fine. I tracked down the previous owner, who now remembers something being changed out with the injectors and maybe the chip being changed.
Now I'm in a interesting position - do I use something like a Comp Cam 304, and leave that chip in? It may work out fine. I tracked down the previous owner, who now remembers something being changed out with the injectors and maybe the chip being changed.
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
Originally Posted by jimbomill
Thank you very much[I] for digging around to get this info!
Now I'm in a interesting position - do I use something like a Comp Cam 304, and leave that chip in? It may work out fine. I tracked down the previous owner, who now remembers something being changed out with the injectors and maybe the chip being changed.
Now I'm in a interesting position - do I use something like a Comp Cam 304, and leave that chip in? It may work out fine. I tracked down the previous owner, who now remembers something being changed out with the injectors and maybe the chip being changed.
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
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From: Cherry Hill NJ
Originally Posted by 96GS#007
The current chip will work fine with the 304. Sure, you might leave a few hp on the table at WOT without specific tuning but it's clear by your cam selection that power is a secondary concern. Daily driveablity will be fine. You might consider adding some 1.6 roller rockers (and appropriate valve springs) to pick up another 10+ rwhp.