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