Feedback Carburetor Tests W/Codes

• Model Identification
• Description
  • Notes
  • Feedback Carburetor Tests W/Codes
    • ECM Operating Conditions Sensed
    • ECM Systems Controlled
• Diagnostic System Operation
• Basic Diagnostic Procedure
• Entering Or Exiting Diagnostic Mode
• Clearing Trouble Codes
• Reading Trouble Codes
• Trouble Code Component Identification
• Trouble Code Determination (Hard Or Intermittent)
• Diagnostic Materials
  • Notes
  • Diagnostic Charts
  • Diagnostic Circuit Check
  • Diagnostic Symptom Check
  • System Performance Check (CARBURETED Models Only)
  • Field Service Mode Check (EFI Models Only)
• Diagnostic Tools
• Diagnostic Circuit Check
• System Performance Check
• Chart A1 - Dwell Fixed Between 10°-50°
• Chart A2 - Dwell Fixed Over 50°
• Chart A3 - Coolant Sensor Circuit Check
• Chart A4 - "Check Engine" Light Inoperative
• Chart A5 - TPS Enrichment Check
• Chart A6 - Won't Flash Code 12
• Code 12 - No Distributor Reference Pulse To ECM
• Code 15 - Coolant Sensor Circuit Open
• Code 21 - TPS Circuit High
• Code 23 - M/C Solenoid Circuit Low
• Code 44 - Lean Exhaust Indication
• Code 45 - Lean Exhaust Indication
• Code 51 - Faulty Prom
• Chart C1 - ECM Replacement Check Chart
• Chart C2A - Stepped Speed Control (SSC) W/ A/C & A/T
• Chart C2B - Stepped Speed Control (SSC) W/ A/C & A/T
• Chart C2C - Stepped Speed Control (SSC) P/S Circuit
• Chart C2D - Stepped Speed Control (SSC) With M/T
• Chart C4D - Ignition System Check
• Chart C6A - Air Management Check
• Chart C7C - EGR Valve Check (Non ECM Controlled)
• Chart C9D - EFE Circuit Check
• Component Locations
• ECM Terminal Identification
• Wiring Diagram