Go to: Main Menu 1987 1988 1989 1990 1991 1992

Firebird EPROM Identification Numbers for 1992

This Decal May differ year to year

 

VIN 8th didget

Engine 

RPO Codes

 Options & Emissions Designation

Production Broadcast Code

Production  (ECM #)

Service Controller # (ECM)

Production PROM Code

E 5.0 TBI MD8 A/Trans

ANTS

AXKS

16161107

1228746

8022ANTS

1108AXKS

NB2 Calif Emissions

E

5.0 TBI

MD8

A/Trans

ANTT

AXKT

16161112

1228746

8026ANTT

1113AXKT

NA5 Fed Emissions

E

5.0 TBI

M39

M/Trans

ANTP, 

APTX

16161117

1228746

8010ANTP, 

2250APTX

NB2 Calif  Emissions

E

5.0 TBI

M39

M/Trans

ANTR, 

APTY

AXKW

16161123

1228746

8016ANTR, 

2254APTY

1124AXKW

NA5 FED Emissions
F 5.0 TPI MK6

M/Trans

ATNX,

AWFZ,

ANJS,

ANJJ,

AXYC

16163138

1227730

5668ATNX,

5504AWFZ,

9483ANJS,

9508ANJJ,

3160AXYC

T 3.1 MPFI MD8 A/Trans

ALSZ, ATFM, ATXF,

ARPM, 

AUJW

AYCH,

AZYT

16171406

1227730

2715ALSZ, 4201ATFM, 7700ATXF,

5185ARPM, 

0976AUJW

4297AYCH,

1407AZYT

NA5 Fed Emissions
T 3.1 MPFI MD8 A/Trans

ALTD,

ATFN,

ATXH,

ARPN,

AUJX

AYCF

AZTX

16171410

1227730

2711ALTD,

4207ATFN,

7703ATXH,

5189ARPN,

0982AUJX

4293AYCF

1411AZTX

NB2 California Emissions 
F 5.0 M39 M/Trans

AWFX,

AXXD

16163070

1227730

5518AWFX,

3072AXXD

QLC 245/50R16 Tires
F 5.0 MD8 A/Trans

ARZU,

AWFY,

AXXF

16163075

1227730

9184ARZU,

5523AWFY,

3076AXXF

QLC 245/50R16 Tires
T 3.1 MB1 M/Trans

ARPL, ARPK, BAWX

16176864

1227730

5180ARPL, 5176ARPK, 6865BAWX

8 5.7 MD8 A/Trans AUJP 16151348 1227730 1350AUJP
F 5.0 MD8 A/Trans

AWFU

AXXB

 

16163062

1227730

5509AWFU

3060AXXB

QPE 215/60R16 Tires
QMT 235/55R16 Tires
F 5.0 M39 M/Trans

AWFW,

AXXC

16163066

1227730

5514AWFW,

3067AXXC

QPE 215/60R16 Tires
QMT 235/55R16 Tires

 

VIN Engine Displacement Engine Type Service Controller # (ECM)
T 3.1 MPFI 1227730
E 5.0 TBI 1228746

F & 8

5.0 & 5.7

TPI

1227730

NOTE: The above is NOT a mistake, the 1227730 was used in both the 3.1 & 505/350 TPI

NOTE: 1227727 is a under the hood waterproof version of the 1227730

Tuning the 1227730 Visit http://www.diy-efi.org/gmecm/ecm_info/1227730/qanda.html

See a picture of the innards at www.jeack.com