Ignition Timing Control - Except Civic

• Description
• Operation
  • Ignition Timing Control System
    • 1975-76 Automatic Transmission Equipped Models
    • 1975-76 Manual Transmission Equipped Models
    • 1977-79 Type 1 System
    • 1977-79 Type 2 System
• Testing
  • Ignition Timing Control System
    • 1975 Models
    • 1976 Manual Transmission Equipped Models
    • 1976 Automatic Transmission Equipped Models
    • 1977 Type 1 System
    • 1977 Type 2 System
    • 1978-79 Type 1 System
    • 1978-79 Type 2 System
• Trouble Shooting
  • Vacuum Hose At Distributor Does Not Hold Vacuum
    • 1977 Type 1 System
  • No Vacuum At Advance Hose At Idle
    • 1978-79 Type 1 System (Except Auto. Trans. Civic)
  • Vacuum Appears At Idle When Engine Is At Normal Operating Temperature
    • 1977 Type 1 System
    • 1978-79 Type 1 System (Except Auto. Trans. Civic)
    • 1978-79 Type 1 System (Auto. Trans. Civic)
  • Less Than 12 In. Hg At Advance Hose At Idle
    • 1978-79 Type 1 System (Auto. Trans. Civic)
  • No Vacuum At Advance Diaphragm At 3000 Rpm
    • 1978-79 Type 1 System (Auto. Trans. Civic)
  • Vacuum Present At Retard Side Of Distributor With Cold Engine At Idle
    • 1977-79 Type 2 System (All Models)
  • Vacuum Present At Advance Side Of Distributor With Cold Engine At Idle
    • 1977 Type 2 System (Civic Only)
  • No Vacuum At Advance Side Of Distributor With Cold Engine At Idle
    • 1978-79 Type 2 System (Accord & Prelude)
    • 1978-79 Type 2 System (Civic)
  • No Vacuum At Retard Or Advance Side Of Distributor Diaphragm With Hot Engine At Idle
    • 1977 Type 2 System (All Models)
    • 1978-79 Type 2 System (All Models)
  • Retard Vacuum Does Not Shut Off When Vacuum Reaches 7.5-8.7 In. Hg Of Vacuum
    • 1978-79 Type 2 System (All Models)