Fuel Injection System - BOSCH LH JETRONIC II

• Introduction
  • Notes
  • Compression Test Or Similar Service Checks
  • Turn Off Ignition When:
  • Battery
  • Control Unit
  • Cleanliness
  • Gaskets, Seals
• Description
  • Notes
  • Electronic Control Unit (Ecu)
  • Fuel System
  • Injectors
  • Fuel Pump Relay
  • Sensors
    • Air Mass Meter
    • A/C Micro Switch
    • Oxygen Sensor
    • Throttle Valve Switch
    • Coolant Temperature Sensor
    • Engine Speed
  • System Relay
• Trouble Shooting
  • Preliminary Checks
    • Notes
    • Engine Does Not Start
    • Engine Difficult to Start (Cold/Warm)
    • Erratic Running (Poor or No Idle)
    • Excessive fuel consumption
    • Low top speed poor performance
    • Erratic Idle
    • Excessive high idle speed
    • Excessive low idle speed, cold engine
    • Poor acceleration, jerking
  • Trouble Shooting
    • Engine Does Not Start
    • Engine Difficult to Start (Cold/Warm)
    • Poor or No Idle (Erratic Running)
    • Excessive Fuel Consumption
    • Low Top Speed, Poor Engine Performance
    • Erratic Idle
    • Excessively High Idle Speed
    • Excessively Low Idle Speed, Cold Engine
    • Poor Acceleration, Jerking
• Testing
  • Fuses, Ground Connections & Connectors
  • Air Leakage, Throttle Switch, Idle Speed
  • Fuel Line Pressure/Pressure Valve
  • Electronic Control Unit (Ecu)
  • Co-Adjustment Using Test Diode 999 5280
  • Co-Adjustment Using Co Meter
  • Co-Adjustment Using VOLVO Mono Tester
  • Injectors, Quick Check
    • Notes
    • If No Click Is Heard
    • If A Click Is Heard But Engine Is Rough
  • Cooling System
    • Pressure Testing
    • Coolant
    • Draining
    • Filling
  • Throttle Valve, Switch, Linkage Adjusting
• Wiring Diagram