Engine System Identification
Engine Vin Code ID [1] Z
Engine V6-262/4.3L
Fuel Control System Throttle Body Fuel Injection
Ignition System High Energy Ignition W/Electronic Spark Timing & Electronic Spark Control (HEI-EST-ESC)
Computer System Throttle Body Fuel Injection System
Remarks:
[1] The eighth digit of the VIN denotes engine code.