Engine Controls - System/Component Tests - 4-CYL EFI

• Introduction
  • Abbreviation Definitions
• Vacuum Hose Diagram(S)
  • Federal Emissions
  • CALIFORNIA Emissions
• Emission: PCV System
  • Overview
  • Inspection Of PCV Valve
    • Removal
    • Blow From Intake Manifold Side
  • Inspection Of PCV Hoses & Connections
    • Visually Inspect Hoses, Connections and Gaskets
• Emission: Fuel Evaporative (EVAP) System
  • Overview
  • Inspection Of Fuel Vapor Lines, Fuel Tank And Tank Cap
    • Visually Inspect Lines and Connections
    • Visually Inspect Fuel Tank
    • Visually Inspect Fuel Tank Cap
  • Inspection Of Charcoal Canister
    • Inspection
    • Check for Clogged Filter and Stuck Check Valve
    • Clean Filter in Canister
• Emission: Dash Pot (DP) System (M/T Only)
  • Overview
  • Inspection Of DP System
    • Inspection
    • Check VTV Operation
• Emission: EGR System (Federal)
  • Overview
  • Inspection Of EGR System
    • Check and Clean Filter in EGR Vacuum Modulator
    • Preparations
    • Check Seating of EGR Valve
    • Check BVSV with Cold Engine
    • Check BVSV and EGR Vacuum Modulator with Hot Engine
    • Check EGR Valve
  • Inspection Of BVSV
    • Check BVSV by Blowing Air into Pipe
  • Inspection Of EGR Vacuum Modulator
    • Check EGR Vacuum Modulator Operation
  • Inspection Of EGR Valve
    • Remove EGR Valve
• Emission: EGR System (CALIFORNIA)
  • Overview
  • Inspection Of EGR System
    • Check and Clean Filter in EGR Vacuum Modulator
    • Preparations
    • Check Seating of EGR Valve
    • Check VSV with Cold Engine
    • Check BVSV and EGR Vacuum Modulator with Hot Engine
    • Check EGR Valve
  • Inspection Of EGR Vacuum Modulator
    • Check EGR Vacuum Modulator Operation
  • Inspection Of VSV
    • Check Vacuum Circuit Continuity In The VSV By Blowing Air Into The Pipe
    • Check For Short Circuit
    • Check For Correct Resistance
  • Inspection Of EGR Valve
    • Remove EGR Valve
    • Install EGR Valve with New Gasket
• Emission: Air Suction (As) System
  • Overview
  • Inspection Of As System
    • Inspection
    • Check AS System with Cold Engine
    • Check AS System with Warm Engine
  • Inspection Of Reed Valve
    • Check Reed Valve by Blowing Air into Pipe
  • Inspection Of VSV
    • Check Vacuum Circuit Continuity in VSV by Blowing Air into Pipe
    • Check for Short Circuit
    • Check For Correct Resistance
  • Inspection Of Check Valve
    • Check Valve by Blowing Air into Each Pipe
• Emission: Three-Way Catalyst (TWC) System
  • Overview
  • Inspection Of Exhaust Pipe Assembly
    • Inspection
  • Inspection Of Catalytic Converter
    • Check for Dents or Damage
  • Inspection Of Heat Insulator
    • Inspection
  • Replacement Of Catalytic Converter
    • Remove Converter
    • Install Converter
• Fuel System: Fuel Pump
  • Overview
  • On-Vehicle Inspection (Pump Pressure)
    • Check Fuel Pump Operation
    • Check Fuel Pressure
  • Removal Of Fuel Pump
    • Removal
    • Remove Fuel Pump
    • Remove Fuel Pump Filter
  • Installation Of Fuel Pump
    • Installation
    • Install Fuel Pump Bracket
    • Install Fuel Tank
    • Refill with Gasoline
• Fuel System: Cold Start Injector
  • Overview
  • On-Vehicle Inspection
    • Measure Resistance of Cold Start Injector
  • Removal Of Cold Start Injector
    • Removal
  • Inspection Of (Removed) Cold Start Injector
    • Check Injection of Cold Start Injector
  • Installation Of Cold Start Injector
    • Install Cold Start Injector
• Fuel System: Pressure Regulator
  • Overview
  • On-Vehicle Inspection
    • Check Fuel Pressure
  • Removal Of Pressure Regulator
    • Removal
  • Installation Of Pressure Regulator
    • Install Pressure Regulator
• Fuel System: Injector
  • Overview
  • On-Vehicle Inspection
    • Check Injector Operation
    • Measure Resistance of Injector
  • Removal Of Injectors
    • Removal
    • Remove Chamber with Throttle Body
    • Disconnect Wires
    • Disconnect Fuel Hose From Delivery Pipe
    • Remove Delivery Pipe with Injectors Attached
  • Inspection Of (Removed) Injectors
    • Testing Injectors
    • Check Leakage
  • Installation Of Injectors
    • Install Injectors into Delivery Pipe
    • Install Delivery Pipe with Injectors
    • Connect Fuel Hose to Delivery Pipe
    • Install Chamber with Throttle Body
    • Checking for Fuel Leakage
• Fuel System: Fuel Tank & Lines
  • Overview
  • Precautions
  • Inspect Fuel Lines & Connections
• Induction System: Air Flow Meter
  • Overview
  • On-Vehicle Inspection
    • Measure Resistance of Air Flow Meter
  • Removal Of Air Flow Meter
    • Remove Air Cleaner Cap with Air Flow Meter
    • Remove Air Flow Meter
  • Inspection Of (Removed) Air Flow Meter
    • Measure Resistance of Air Flow Meter
  • Installation Of Air Flow Meter
    • Install Air Flow Meter
    • Install Air Cleaner Cap with Air Flow Meter
• Induction System: Throttle Body/TPS
  • Overview
  • On-Vehicle Inspection (Tb)
    • Check Throttle Body
    • Check Throttle Position Sensor
  • Removal Of Throttle Body
    • Removal
  • Inspection Of (Removed) Air Flow Meter
    • Clean Throttle Body Before Inspection
    • Check Throttle Valve
    • Check Throttle Position Sensor
    • If Necessary, Adjust Throttle Position Sensor
  • Disassembly Of Throttle Body
    • Remove Throttle Position Sensor
    • Remove Auxiliary Air Valve
    • Remove Dash Pot (M/T Only)
  • Assembly Of Throttle Body
    • Installation
    • Install Throttle Position Sensor
    • Adjust Throttle Position Sensor
  • Installation Of Throttle Body
    • Install Throttle Body
• Induction System: Auxiliary Air Valve/Idle Screw
  • Overview
  • On-Vehicle Inspection
    • Check Operation of Auxiliary Air Valve
  • Removal Of Auxiliary Air Valve
    • Remove Throttle Body
    • Remove Auxiliary Air Valve
  • Installation Of Air Flow Meter
    • Install Auxiliary Air Valve
    • Install Throttle Body
• TCCS: Location Of Electronic Control Parts
• TCCS: EFI Main Relay
  • Overview
  • Inspection Of EFI Main Relay
    • Inspect Relay Continuity
    • Inspect Relay Operation
• TCCS: Circuit Opening Relay
  • Overview
  • Inspection Of Circuit Opening Relay
    • Inspect Relay Continuity
    • Inspect Relay Operation
• TCCS: Start Injector Time Switch
  • Overview
  • Inspection Of Start Injector Time Switch
    • Measure Resistance of Start Injector Time Switch
• TCCS: Water Temperature Sensor
  • Overview
  • Inspection Of Water Temp Sensor
    • Measure Resistance of Water Temp. Sensor
• TCCS: High Temperature Fuel Pressure Up System
  • Overview
  • Inspection Of VSV
    • Check Vacuum Circuit Continuity in VSV by Blowing Air into Pipe
    • Check for Short Circuit
    • Check for Open Circuit
• TCCS: Oxygen Sensor
  • Inspection Of Oxygen Sensor
    • Inspect Heater Resistance of Oxygen Sensor
    • Inspection of Feedback Voltage (Vf1)
• TCCS: EGR Gas Temp Sensor (CALIF Only)
  • Overview
  • Inspection Of EGR Gas Temp Sensor
    • Measure Resistance EGR Gas Temp. Sensor
• TCCS: Ecu
  • Inspection Of Ecu
    • Notes
    • Measure Voltage of ECU
    • Measure Resistance of ECU
• TCCS: Fuel Cut Rpm
  • Inspection Of Fuel Cut Rpm
• Torque Specifications