Operation CHARM: Car repair manuals for everyone.

Home >> GMC Truck >> 2000 >> Safari Van 2WD V6-4.3L VIN W >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> Spark Control

Spark Control

ADVANCE/RETARD: The spark control parameter indicates whether the VCM is advancing or retarding spark.

pro multis · About Operation CHARM