2.8L CEC Tests W/Codes

• Removal & Installation
  • Electronic Control Module (ECM) R & I
  • Prom R & I
    • Removal
    • Installation
  • Oxygen Sensor R & I
    • Notes
    • Removal
    • Installation
  • Vacuum Sensor R & I
  • Coolant Temperature Sensor R & I
  • Vehicle Speed Sensor (VSS) R & I
• Diagnosis & Testing
• Recalling Trouble Codes
• Entering Diagnostic Mode
• Clearing Trouble Codes
• Exiting Diagnostic Mode
• Failure Code Determination
• Diagnostic Procedure
• System Checks
  • Diagnostic Circuit Check
  • Driver Complaint Chart
  • System Performance Check
• Diagnostic Tools Required
• Trouble Code Id
• Diagnostic Circuit Check
• Driver Comment Checks
  • Engine Performance Problem - Odor, Surge, Fuel Economy Or Emission Problem
  • All Other Complaints
• System Performance Check
• Dwell Fixed Under 10°
• Dwell Fixed Between 10-50°
• Dwell Fixed Over 50°
• TPS Enrichment Check
• No "Check Engine" Light
• Won't Flash Code 12 - Remote Lamp Driver In Harness
• Electric Diverter Valve Circuit Check
  • Electric Diverter Valve (EDV) Check (Exc Models W/ Mechanical Divert Valve)
• TCC Electrical Diagnosis
• EFE (Electrically Heated) Check
• Divert Valve Check
• Est Performance Check
• Engine Cranks, But Won't Run
  • Engine Cranks, But Won't Run (W/ Integral Coil)
  • Engine Cranks, But Will Not Run (With Remote Coil)
• Code 12 - No Reference To ECM
• Code 13 - O2 Sensor CKT
• Code 14 - Shorted Cts Circuit
• Code 15 - Open Cts Circuit
• Code 21 - TPS Circuit
• Code 23 - M/C Solenoid Circuit
• Code 24 - VSS Circuit
• Code 34 - Vacuum Sensor Circuit
• Code 41 - No Specific Reference
• Code 42 - Est/Est Bypass
• Code 44 - Lean O2 Indication
• Code 45 - Rich O2 Indication
• Code 51 - Faulty Prom
• Code 55 - Faulty ECM Signals
• Component Location
• Wiring Diagrams