Heavy Duty - Over 8500 GVW

Engine Displacement 4.9L (300 cid)
Fuel System Electronic Fuel Injection (EFI)

SYSTEMS AND DEVICES:

AIS [1] Managed Thermactor Air (MTA) W/AM1 or AM2
CAT [2] Conventional Oxidation Catalyst, Three-Way Catalyst
CEC Electronic Engine Controls (EEC-IV)
CEL Check Engine Light
EGR Electronic Exhaust Gas Recirculation
EVAP Evaporative Emission Controls
FR Fuel Pipe Restrictor
OXY Heated Exhaust Gas Oxygen Sensor (HEGO)
PCV Positive Crankcase Ventilation
SPK Thick Film Ignition (TFI-IV)

Remarks:

[1] a. Air Management 1 (AM1) utilizes a Thermactor Air Bypass (TAB) Vacuum Solenoid Valve.
b. Air Management 2 (AM2) utilizes a Thermactor Air Bypass (TAB) and Thermactor Air Diverter (TAD) Vacuum Solenoid Valve.
c. For verification of MTA System, refer to SCHEMATIC DIAGRAMS/VACUUM AND VAPOR HOSE DIAGRAMS.

[2] Catalyst configuration may vary.