Regal V6-231 3.8L Turbo VIN 8 4-bbl (1983)
Engine Control Module: Service and Repair
Computer Command Control (C-3) System
Chart C-1 ECM Replacement Check
Electronic Control Module, Replace
1. Disconnect battery ground cable.
2. Disconnect numbered and lettered connectors from ECM.
3. Remove ECM mounting hardware, then the ECM from the passenger compartment.
4. Reverse procedure to install.
NOTE: Replacement ECM's are not equipped with engine calibration units (PROMs). If the PROM is to be reused, care should be taken when
removing it from defective ECM. See Prom, Replace for proper removal procedure.
