2.3L MCU Testing
- Diagnosis & Testing
- Notes
- Preparation For Testing
- Functional Test
- Key On, Engine Off (KOEO) Test
- Key On, Engine Running (KOER) Test
- Instructions For Using The Sub-Routine Tests
- Code 11 - No Start Test
- Code 33 - Running Test Not Initiated
- Code 41 - Fuel Always Lean
- Code 42 - Fuel Always Rich
- Code 44 - THERMACTOR System
- Code 45 - THERMACTOR Air Diverter
- Code 46 - THERMACTOR Air By-Pass
- Code 51 - Mid Temperature Switch
- Codes 52 & 62 - Idle Tracking Switch
- Codes 53 & 63 - Wot Vacuum Switch
- Code 56 - Dual Temperature Switch
- Code 65 - Barometric Pressure Switch
- No Codes - Functional Test Not Operating
- Tachometer Lead Test
- Canister Purge Solenoid
- Wiring Diagrams