Factory Service Manual For Mitsubishi Engine Fuel System. Manual Contains Illustrations, Instructions, Diagrams For Step By Step Remove And Install, Assembly And Disassembly, Service, Inspection, Repair, Troubleshooting, Tune-Ups.
Format: PDF (ZIP. File)
Language: English, French
Quantity of Manuals: 2
Pages: 408; 362
Number: 99789-74221; 99789-74122
Bookmarks: Yes
Searchable: Yes
Wiring Diagrams: Yes
Model
Mitsubishi Engine LPG Fuel System
GM4.3L
G6
For use with the GM 4.3L, G6 Engine and FGC35K-FGC70K Chassis Service Manuals
Contents
-GENERAL INFORMATION
Glossary
Introduction
How To Identify The Engine Year
Servicing Your Emissions Certified Engine
Fuel Quality
Fuel System Cautions
Warnings, Cautions And Notes
Proper Use Of This Service Manual, Tools And Equipment
-MAINTENANCE
Serpentine Belt System
Cooling System
Coolant
Engine Electrical System Maintenance
Engine Crankcase Oil
Fuel System Inspection And Maintenance
Electronic Pressure Regulator (EPR) Maintenance And Inspection
Air Fuel Mixer/Throttle Control Device Maintenance And Inspection
Exhaust System And Catalytic Converter Inspection And Maintenance
-LPG FUEL SYSTEM
Description And Operation Of The Fuel Systems
-LPG SYSTEM DIAGNOSIS
Fuel System Description
Diagnostic Aids
-LPG SYMPTOM DIAGNOSTICS
LPG Symptom Diagnostics
Intermittent
No Start
Hard Start
Cuts Out, Misses
Hesitation, Sag, Stumble
Backfire
Lack Of Power, Sluggishness, Or Sponginess
Poor Fuel Economy
Rough, Unstable, Or Incorrect Idle, Stalling
Surges/Chuggles
Crankcase Ventilation System Inspection/Diagnosis Results Of Incorrect Operation
-DIAGNOSTIC SCAN TOOL
DST Installation Instructions
Installing The USB Adapter Driver
Installing The USB Adapter Driver
Password Login
Password Dialog Box Functions
Connecting The PC To The Spectrum Fuel System
DST Service Pages
Spark Kill
Injector Kill
DBW Test Mode
External Power Test
Plot/Log Menu Functions
DST Plot Interface Functions
Snapshot Hot Key Functions
DST Logger
Reprogramming The ECM
Malfunction Indicator Lamp (MIL)
Spectrum Diagnostic Trouble Codes (DTC)
DLC Communication Error
Blink Code Function
Intermittent Problems
-ENGINE WIRING SCHEMATIC
Chassis Schematic
Engine Schematic
Engine Wiring Schematic
Electrical Flow Diagram
ECM Power, Power Relay Controls & ECM Ground Circuits Page ECM-1
ECM Engine / Fuel Sensor Circuits (1) Page ECM-2
ECM Engine / Fuel Sensor Circuits (2) Page ECM-3
ECM Actuator Circuits Page ECM-4
ECM Interface Connector Circuits Page ECM-5
ECM EPR And Diagnostic Connector Circuits Page ECM-6
-ENGINE WIRE HARNESS REPAIR
On-Vehicle Service Wire Harness Repair
Connectors And Terminals
Micro-Pack
Metri-Pack
Weather-Pack
-DIAGNOSTIC TROUBLE CODES (DTCs)
OBD System Check/Mil (Malfunction Indicator Lamp)
Ignition Control System Diagnostic Chart
DTC-16 — Never Crank Synced At Start
DTC-107 — Map Low Voltage
DTC-108 — Map High Pressure
DTC-111 — IAT Higher Than Expected
DTC-112 — IAT Low Voltage
DTC-113 — IAT High Voltage
DTC-117 —ECT/CHT Low Voltage
DTC-118 — ECT/CHT High Voltage
DTC-121 — TPS 1 Lower Than TPS 2
DTC-122 — TPS 1 Signal Voltage Low
DTC-123 — TPS 1 Signal Voltage High
DTC-127 — IAT Higher Than Expected 2
DTC-129 — BP Low Pressure
DTC-134 — EGO 1 Pre Cat Open/Lazy
DTC-154 — EGO 2 Post Cat Open/Lazy
DTC-187 — FT Voltage Low
DTC-188 — FT Voltage High
DTC-219 — Max Govern Speed Override
DTC-221 — TPS 1 Higher Than TPS 2
DTC-222 — TPS 2 Signal Voltage Low
DTC-223 — TPS 2 Signal Voltage High
DTC-336 — Crank Sync Noise
DTC-337 —Crank Loss
DTC-341 — Camshaft Sync Noise
DTC-342 — Camshaft Sensor Loss
DTC-359 — Fuel Run-Out Longer Than Expected
DTC-524 — Oil Pressure Low
DTC-562 — System Voltage Low
DTC-563 —System Voltage High
DTC-601 — Flash Checksum Invalid
DTC-604 —Ram Failure
DTC-606 —Cop Failure
DTC-642 — External 5 Volt Reference Low
DTC-643 — External 5 Volt Reference High
DTC-650 — Mil Control Open
DTC-652 — External 5 Volt 2 Reference Low
DTC-653 — External 5 Volt 2 Reference High
DTC-685 — Relay Coil Open
DTC-686 — Relay Control Ground Short
DTC-687 — Relay Coil Short To Power
DTC-1111 — Fuel Rev Limit
DTC-1112 — Spark Rev Limit
DTC-1121 — FPP 1 And 2 Redundancy Lost
DTC-1151 — Closed Loop Multiplier High LPG
DTC-1152 — Closed Loop Multiplier Low LPG
DTC-1161 — Adaptive Learn High LPG
DTC-1162 — Adaptive Learn Low LPG
DTC-1171 — EPR Pressure Higher Than Expected
DTC-1172 — EPR Pressure Lower Than Expected
DTC-1173 — EPR Communication Lost
DTC-1174 — EPR Supply Voltage High
DTC-1175 — EPR Supply Voltage Low
DTC-1176 — EPR Internal Actuator Fault
DTC-1177 —EPR Internal Circuitry Fault
DTC-1178 — EPR Internal Communication Error
DTC-1511 — AUX Analog Pu1 High
DTC-1512 — AUX Analog Pu1 Low
DTC-1521 — CHT Higher Than Expected 1
DTC-1522 — CHT Higher Than Expected 2
DTC-1612 — RTI 1 Loss
DTC-1613 — RTI 2 Loss
DTC-1614 — RTI 3 Loss
DTC-1615 — A/D Loss
DTC-1616 — Invalid Interrupt
DTC-1626 — Can TX Failure
DTC-1627 — Can RX Failure
DTC-1628 — Can Address Conflict
DTC-1645 — Mil Control Ground Short To Power
DTC-2111 — Unable To Reach Lower TPS
DTC-2112 — Unable To Reach Higher TPS
DTC-2121 — FPP 1 Lower Than FPP 2
DTC-2122 — FPP 1 High Voltage
DTC-2123 — FPP 1 Low Voltage
DTC-2126 — FPP 1 Higher Than FPP 2
DTC-2127 — FPP 2 Low Voltage
DTC-2128 — FPP 2 High Voltage
DTC-2229 — BP High Pressure
DTC-2300 — Primary Loop Open/Low Side Short To Ground
DTC-2301 — Primary Coil Shorted
-SERVICING THE FUEL SYSTEM
Engine Control Module
Engine Wire Harness Replacement
Fuel Temperature (FT) Sensor Replacement
Oil Pressure Sender
Distributor
Temperature Manifold Pressure Sensor (TMAP)
Ft150 Fuel Mixer
Vacuum Line
Engine Coolant Temperature Sensor (ECT)
Heated Exhaust Gas Oxygen Sensor (HEGO)
Propane Fuel System Pressure Relief
Fuel Mixer
Electronic Pressure Regulator (EPR)
Electronic Pressure Regulator (EPR)—Service
Mixer To Throttle Body O-Ring Replacement
Mixer To Throttle Plastic Throttle Body Sleeve Replacement
Throttle Body Replacement
Throttle Body-Adapter O-Ring Replacement
Replacement Of Adapter-Intake Manifold Gaskets
Fuel Vapor Hose—(EPR) To Fuel Mixer
Shut-Off Valve Replacement
EPR Mounting Bracket
ECM Mounting Bracket
LPG Fuel System Pressure Check
LPG Fuel Control System Check
Propane Fuel System Leak Test
Restricted Exhaust System Diagnosis
Catalytic Converter
EPR Coolant Hose Replacement
-LPG PARTS DIAGRAM
Mixer And Throttle Body Assembly (New)
Mixer And Throttle Body Assembly (Former)
EPR Assembly
Regulator Repair
Hose Assemblies Coolant/Vacuum/Fuel
Engine Control Module
Sensors
Exhaust System
Service Tools
-APPENDIX
Altitude VS Barometric Pressure
Ignition System Specifications
Extended ECT Temperature VS Resistance
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