91 350 TPI A/T broadcast codes differences??
02-04-2008, 08:58 AM
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Car: 91 Formula
Engine: 350 L98 SD TPI
Transmission: 700R4
Axle/Gears: 10 bolt PBR 3:23 disc posi
91 350 TPI A/T broadcast codes differences??
GM has 3 different broadcast codes for the 91 350 TPI A/T which are ANJF,ANJA and AUJP. What are the differences between them if any? I have a ANJF and a AUJP that came out of 91 Z28s that had the same engine,tranny and rearend gearing. I'm wondering why GM has 3 different BC for the same setup? Thx.
02-04-2008, 10:33 AM
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Re: 91 350 TPI A/T broadcast codes differences??
GM has 3 different broadcast codes for the 91 350 TPI A/T which are ANJF,ANJA and AUJP. What are the differences between them if any? I have a ANJF and a AUJP that came out of 91 Z28s that had the same engine,tranny and rearend gearing. I'm wondering why GM has 3 different BC for the same setup? Thx.
So that could be the difference in ANJF versus AUJP.
OR, it could be one was for VATS versus non-VATS for a particular model.....
02-04-2008, 11:18 AM
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Car: 91 Formula
Engine: 350 L98 SD TPI
Transmission: 700R4
Axle/Gears: 10 bolt PBR 3:23 disc posi
Re: 91 350 TPI A/T broadcast codes differences??
90-91 all 3 were used but in 92 only the AUJP was used.
Has anyone read all 3 of these to see what the difference were?
02-04-2008, 12:19 PM
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Re: 91 350 TPI A/T broadcast codes differences??
If in 1992 only AUJP was used, and before that, all 3, then that indicates a change due to some issues in the older cals (most likely either spark knock sensitivity or a driveability issue at some temperature or altitude......
02-04-2008, 04:10 PM
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Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller 236/242
Transmission: 700R4 HomeBrew, 2.4K stall
Axle/Gears: 3:73 Posi, 7.5 Soon to break
Re: 91 350 TPI A/T broadcast codes differences??
Most likely they were updates for better drivability and or consumer complaints.
I know there are a couple different AUJP's also.
Best to go with the latest one you have available.
I know there are a couple different AUJP's also.
Best to go with the latest one you have available.
02-04-2008, 06:01 PM
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Car: 67 Firebird Convertible
Engine: LB9
Transmission: 700R4
Axle/Gears: 3.55
Re: 91 350 TPI A/T broadcast codes differences??
I read somewhere that a different prom was used in the cars with the 16" bigger tires and lower rear ends, and the prom was adjusted to calibrate speed.
Don't know for sure.
Don't know for sure.
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