Grand AM L4-121 2.0L (1988)
Prom Information
Scan
Prom
Prom
Prom
Superseding
ID
Code
Bcc
Part #
ID
Part #
TSB Reference #
0002
0037
AMUW
16120036
3421
16153406
Pontiac 88-6-19
Spark knock, EGR surge, harsh 3-2 downshift, overboost at
WOT on 2-3 upshift (G040).
2242
2587
AKKH
16082586
0002
16120036
2252
2593
AKKJ
16082592
3411
16153405
2262
2597
AKKK
16082596
4282
16084410
2272
2603
AKKL
16082602
Running change.
3411
3607
AUWR
16153405
Pontiac 90-6-35
Cold driveability roughness, hesitation, failure to run after cold
start.
3421
3626
AUWS
16153406
Pontiac 90-6-35
Cold driveability roughness, hesitation, failure to run after cold
start.
4262
4402
ALBK
16084399
0002
16120036
4272
4407
ALBL
16084406
3411
16153405
4282
4412
ALBM
16084410
Buick 87-6-23
Spark knock, overboost at WOT on 2-3 upshift.
Buick 87-6E-25
4292
4418
ALBN
16084417
6532
1092
ABKX
16071090
0002
16120036
6542
4920
ABKY
16074918
3411
16153405
6552
4925
ABKZ
16074924
2262
16082596
6562
4930
ABLA
16074928
2272
16082602