B4000 2WD V6-4.0L OHV (1994)
Ignition Control Module: Testing and Inspection
IGNITION CONTROL MODULE INSPECTION
1. Check the Powertrain Control Module. (Refer to Computers and Controls).
See: Relays and Modules - Computers and Control Systems/Engine Control Module/Testing and Inspection
2. Check the condition of the harness connectors, Coil Pack and High-Tension Leads.
3. If all are normal, but misfire still occurs, replace the Ignition Control Module.