Feedback Carburetor System
- Description
- Operation
- Diagnosis & Testing
- Diagnostic System
- Trouble Codes
- Diagnostic Procedure
- Diagnostic Circuit Check
- Driver Complaint
- System Performance Check
- Chart 1, Dwell Fixed Under 10°
- Chart 2, Dwell Fixed Between 10-80° Open Coolant Sensor Or Oxygen Sensor Circuit
- Chart 3, Dwell Fixed Over 80° Rich Condition Indication
- Chart 4, Idle Switch & Wot SW. Circuit Check
- Chart 5, "Check Engine" Light Inoperative
- Chart 6, No Code 12
- Code 12, No Reference Pulses To ECM
- Code 13 - Open O2 Sensor Circuit
- Code 14 - Shorted Coolant Sensor Circuit
- Code 15 - Open Coolant Sensor Circuit
- Code 21 - Idle Switch Circuit Open Or Wot Switch Circuit Shorted
- Code 22 - Fuel Cut (F/C) Solenoid Circuit Open Or Grounded
- Code 23 - Mixture Control (M/C) Solenoid Circuit Open Or Grounded
- Code 31 - No Reference Signal
- Code 25 - Air Switching (A/S) Solenoid Circuit Open Or Grounded
- Code 44 - Oxygen (O2) Sensor - Lean Indication
- Code 45 - Oxygen (O2) Sensor - Rich Indication
- Code 51 - Constant High Voltage From Fuel Cut Solenoid To ECM
- Code 52 - Ram Problem
- Code 53 - Constant High Voltage From A/S Solenoid To ECM
- Code 54 - Constant High Voltage From Mixture Solenoid To ECM
- Idle/Wot Switch Assemblies Check
- Code 55 - A/C Converter Problem
- Air Management Check
- Carburetor Mixture Control (M/C) Solenoid Check
- Removal & Installation