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1988
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505 SW8, Standard
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Fuel Injection System - LH-JETRONIC
Fuel Injection System - LH-JETRONIC
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Description
Operation
Electronic Control Unit (Ecu)
Fuel System
Injectors
Fuel Pump Relay
Idle Control
Sensors
Air Mass Meter
Coolant Temperature Sensor
Engine Speed
Oxygen Sensor
Speed/Position Sensor
Throttle Switch
Trouble Shooting
Notes
Preliminary Checks
Trouble Shooting Procedures
Notes
Engine Difficult to Start or Will Not Start Cold or Hot
Engine Starts Then Stalls
Erratic Idle
Engine Misfires During All Load Ranges
Lack Of Engine Power
Poor Fuel Economy
CO Level Too Low
CO Level Too High
Difficult To Adjust Idle Speed
Testing
Air Intake Circuit
Checking Air Induction System Under Pressure
Fuel Pressure Regulation
Fuel Pressure
Counterpressure
Fuel Pressure Regulator
Incorrect Fuel Pressure
Insufficient Fuel Output
Component Testing
Fuel Injection ECU Ignition Signal
Fuel Injection ECU Power Supply
Fuel Pump Relay Trigger Circuit
Main Relay Trigger Circuit
Idle Regulation Valve
Air Mass Meter Output Signal
Air Mass Meter Burn-Off Cycle
Adjustments
Notes
Fuel Injection System - LH-JETRONIC
Throttle Valve