Ignition System: Application and ID

Engine VIN Code ID [1] Z

Engine Displacement 4.3L (262 cid)

Engine Configuration V6

Fuel System Throttle Body Injection (TBI) Model 220

Ignition System High Energy Ignition W/Electronic Spark Timing & Electronic Spark Control (HEI-EST-ESC)

Computer System Computer Command Control (ECM)

Remarks:
[1] The eighth digit of the VIN denotes engine code.