Engine - Detonation, Idle/Cracked Throttle Driveability

Model Year 1983

Bulletin No. 83-132

File In Group 64A

Number 15

Date June '83
SUBJECT: SERVICE PROM - REDUCTION OF ENGINE DETONATION, IMPROVEMENT OF CRACKED THROTTLE DRIVEABILITY AND COLD IDLE STABILITY

MODELS AFFECTED: 1983 SKYHAWK WITH 2.0L L4 ENGINE (CODE P)
On some 1983 Skyhawks with 2.0L L4 engines, improvement of the conditions listed below can be gained by installation of the service PROM detailed in the information below.

The conditions improved with this service PROM include:

^ Engine detonation
^ Cracked throttle driveability
^ Cold idle stability

Vehicle Configuration ECM P/N Service PROM

Federal 16029801
All M5 16023561 1226473
M4 W/A/C 16033061

Federal 16033051 1226474
M4 W/0 A/C

Federal 16027111
All A3 16032261 1226471

California 16027071 1226477
All M4 & M5

California 16027101 1226475
All A3
Use applicable labor operation.