Feedback Carburetor System
- Description
- Operation
- Diagnosis & Testing
- Diagnostic Circuit Check
- Clearing Trouble Code Memory
- Diagnostic Procedures
- Driver Complaint
- System Performance Check
- Chart 1 - Dwell Fixed Under 15°
- Chart 2 - Dwell Fixed Between 15-50°
- Chart 3 - Dwell Fixed Over 50°
- Chart 4 - TPS Wide Open
- Chart 5 - "Check Engine" Light Inoperative
- Lamp Driver Circuit
- Chart 6 - No Code 12
- Chart 7 - Fuel Cut (F/C) System Operational Check (Including Idle Switch)
- Code 12 - No Distributor Reference Pulse To The ECM
- Code 13 - Open O2 Sensor Circuit
- Code 14 - Shorted Coolant Sensor Circuit
- Code 15 - Open Coolant Sensor Circuit
- Code 21 - TPS Sensor/Idle Switch Circuit
- Code 22 - F/C Relay Open Or Grounded
- Code 23 - M/C Solenoid Circuit Open Or Grounded
- Code 42 - Constant High Voltage, Fuel Cut (F/C) Relay To ECM
- Code 44 - Lean Exhaust Indication
- Code 45 - Rich Exhaust Indication
- Code 54 - Constant High Voltage, Mixture Control Solenoid
- Code 55 - Faulty O2 Sensor Or ECM
- M/C Solenoid Check
- Adjustment