Engine Controls - Tests W/Codes - EFI
- Introduction
- Ecu Location
- Operation
- Retrieving Trouble Codes
- Trouble Code Charts
- Diagnostic Circuit Check
- Diagnostic Circuit Tests
- Test 1 - Ecu Power Source
- Test 2 Or Code 11 - Ecu (B+) Circuit
- Code 12, 13 - Rpm Signal
- Code 14/Test No. 3 - Ignition Signal
- Test 4 Or Code 21, 27 - Oxygen Sensor Signal
- Test 5 Or Code 22 - Coolant Temperature Sensor Signal
- Test 6 Or Code 24 - Intake Air Temp Sensor Signal
- Code 25 - Lean Air/Fuel Mixture
- Code 26 - Rich Air/Fuel Mixture
- Test 7 Or Code 31, 32 - Airflow Meter Signal
- Throttle Position Sensor (TPS) Signal, 4-CYL Without Electronic Controlled Transaxle (ECT)
- 4-CYL With Electronic Controlled Transaxle (ECT)
- V6 With Electronic Controlled Transaxle (ECT)
- Code 42 - Vehicle Speed Sensor (VSS) Signal
- Test 9 Or Code 43 - Starter Signal
- Code 51 - Switch Signal
- Code 52 & 53 - Knock Sensor Signal
- Test 10 Or Code 71 - EGR System Malfunction
- Test 11 - Injector Circuit
- Test 12 - Idle Speed Control Circuit
- Test 13 - "Check Engine" Light Circuit
- Test 14 - A/C Switch Circuit
- Summary