Prom ID  1985-1992 TPI equipped engines 

1991 305 (5.0L)  "F" body Camaro-Firebird-Trans Am

Prom BCC Prom Code  Scan ID  Trans Gear Ratio Emissions   Body
ASHN 2500 0521 5 sp man N/A N/A      F
AXXB 3063 3061 Auto N/A N/A      F
AXXC 3067 3071 5 sp man N/A N/A      F
AXXD 3072 3081 5 sp man N/A N/A      F
AXXF 3076 3091 Auto N/A N/A      F
AXYB 3157 3261 5 sp man N/A N/A      F
AXYC 3160 3271 5 sp man N/A N/A     F
ANJJ 9508 5201 5 sp man N/A N/A      F
AWFU 5509 5271 Auto N/A N/A      F
AWFW 5514 5281 5 sp man N/A N/A      F
AWFX 5518 5291 5 sp man N/A N/A      F
AWFY 5523 5301 Auto N/A N/A      F
AWFZ 5504 5311 5 sp man N/A N/A      F
ATNW 5661 5561 5 sp man N/A N/A      F
ATNX 5668 5571 5 sp man N/A N/A      F
ATNY 5672 5581 Auto N/A N/A      F
AWLS 6208 5981 5 sp man N/A N/A      F
AWLT 6212 5991 Auto N/A N/A      F
ARZC 9171 8271 Auto N/A N/A      F
ARZF 9176 8291 5 sp man N/A N/A      F
ARZM 9180 8341 5 sp man N/A N/A      F
ARZU 9184 8421 Auto N/A N/A      F

1991 350 (5.7L)  "F" body Camaro-Firebird-Trans Am  "Y" body Corvette

Prom BCC Prom Code  Scan ID  Trans Gear Ratio Emissions   Body
AUJP 1350 0571 Auto N/A N/A     F
ANJF 4307 5181 Auto N/A N/A     F
ARYU 0706 8201 6 sp man N/A N/A     Y
ARYW 0710 8211 Auto N/A N/A     Y
ARYX 0714 8221 Auto 2.59 N/A      Y
ARYY 0718 8231 Auto 2.73 N/A      Y
AXCN 9806 9811 6 sp man N/A N/A      Y
AXCP 9814 9821 Auto 3.07 N/A      Y
AXCR 9819 9831 Auto 2.59 N/A      Y
AXCS 9826 9841 Auto 2.73 N/A      Y

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