Engine Controls - Basic Diagnostic Procedures - 4-Cylinder

• Service Precautions
  • Notes
  • PRIUS
• Introduction
• Preliminary Inspection & Adjustments
  • Visual Inspection
  • Mechanical Inspection
    • Compression (Camry CNG & Gasoline Models, Camry Solara, Celica, Corolla & ECHO)
    • Compression (Highlander)
    • Compression (MR2)
    • Compression (Prius)
    • Compression (RAV4)
    • Compression (Tacoma)
• Fuel Systems
  • Notes
  • Fuel Pump Operation
    • Notes
    • Checking Fuel Pump Operation Using Toyota Hand-Held Tester (Camry Gasoline Models, Camry Solara & Tacoma)
    • Checking Fuel Pump Operation Using Toyota Hand-Held Tester (Celica, Corolla, ECHO, Highlander, MR2, Prius & RAV4)
    • Checking Fuel Pump Operation By Applying Battery Voltage To Fuel Pump
  • Fuel System Pressure Release
    • Notes
    • Camry CNG Models
    • Camry Gasoline Models, Camry Solara, Celica, Corolla, ECHO, Highlander, MR2, Prius, RAV4 & Tacoma
  • Fuel Pressure
    • Camry CNG Models
    • Camry Gasoline Models & Camry Solara
    • Celica, Corolla, ECHO & MR2
    • Highlander & RAV4
    • Prius
    • Tacoma
  • Fuel Pump Control Circuit
    • Notes
    • Circuit Opening Relay (Camry CNG Models)
    • Circuit Opening Relay (Camry Gasoline Models, Camry Solara & Highlander)
    • Circuit Opening Relay (Celica, ECHO & Prius)
    • Circuit Opening Relay (Corolla)
    • Circuit Opening Relay (MR2)
    • Circuit Opening Relay (RAV4)
    • Circuit Opening Relay (Tacoma)
    • EFI Main Relay (Camry CNG Models)
    • EFI Main Relay (Camry Gasoline Models & Camry Solara)
    • EFI Main Relay (Celica)
    • EFI Main Relay (Corolla)
    • EFI Main Relay (ECHO)
    • EFI Main Relay (Highlander)
    • EFI Main Relay (MR2)
    • EFI Main Relay (Prius)
    • EFI Main Relay (RAV4)
    • EFI Main Relay (Tacoma)
• Ignition Systems
  • Notes
  • Spark Test
    • Notes
    • Camry CNG & Gasoline Models, & Camry Solara
    • Celica, Corolla & ECHO
    • Highlander
    • MR2
    • Prius
    • RAV4
    • Tacoma
  • Camshaft Position Sensor
    • Camry CNG & Gasoline Models, & Camry Solara
    • Celica & Corolla
    • ECHO & Highlander
    • MR2
    • Prius & RAV4
    • Tacoma
  • Crankshaft Position Sensor
    • Camry CNG & Gasoline Models, & Camry Solara
    • Celica & Corolla
    • Echo
    • Highlander
    • MR2
    • Prius
    • RAV4
    • Tacoma
  • Ignition Coil Resistance
    • Camry CNG & Gasoline Models, & Camry Solara
    • Celica, Corolla, ECHO, Highlander, MR2, Prius, RAV4 & Tacoma
• Idle Speed & Ignition Timing
• Summary