Engine Controls - Tests W/Codes - CARBURETED
- Introduction
- Ecu Location
- Hard Failures
- Intermittent Failures
- Check Engine Light
- Retrieving Trouble Codes
- Notes On Trouble Codes
- Clearing Trouble Codes
- Repair Procedure
- Summary
- Trouble Code Charts
- Trouble Code Diagnostic Hints - CARBURETED Models
- Circuit Tests
- Diagnostic Circuit Check
- Ecu Terminal Identification
- Test 1 - Ecu (B+) Circuit
- Test 2 - Ecu Power Source
- Test 3 Or Code 12 - Ignition & Rpm Signal
- Code 21 - Oxygen Sensor Signal
- Test 4 Or Code 22 - Coolant Temperature Switch Signal
- Test 5 Or Code 25, 26 - Air Fuel Mixture Malfunction
- Test 6 Or Code 31 - Vacuum Switch Signal
- Test 7/Code 41 - Throttle Position Switch Signal
- Test 8 Or Code 71 - EGR System Malfunction
- Test 9 Or Code 72 - Fuel Cut Solenoid Signal
- Test 10 - "Check Engine" Light Circuit
- Test 11 - Charging System Circuit
- Test 12 - Throttle Positioner Circuit
- Test 13 - Cold Enrichment Breaker Circuit
- Test 14 - A/C Switch Circuit