chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

All Other Service Bulletins for PROM - Programmable Read Only Memory: > < PROM - False Codes 32/45/Service Engine Soon Light
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Some 1989 C/K, R/V, & G model trucks with TBI engines may experience a False "Service Engine Soon" Light. If Code 32 (EGR Diagnostic) or Code
45 (02 Sensor Rich) cannot be repaired using normal service procedures, a revised calibration PROM should be installed (see chart).

IMPORTANT:

These new PROMS are for light duty emissions vehicles only (UNDER 8500 LBS. GVW).

Labor Operation Number:

T0500

Labor Time:

.6 HR. C/K/R/V MODELS 
.7 HR. G MODELS

All Other Service Bulletins for PROM - Programmable Read Only Memory: > < PROM - False Codes 32/45/Service Engine Soon Light