Triumph:

Engine fuel supply and control systems of motorcycle Triumph Rocket III (2004-2018)

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Exploded view — fuel tank
Exploded view - fuel tank

Exploded view — fuel pump
Exploded view - fuel pump

Exploded view — fuel rail, throttles and injectors
Exploded view - fuel rail, throttles and injectors

Exploded view — air box
Exploded view - air box

Exploded view — exhaust system
Exploded view - exhaust system

Exploded view — evaporative system
Exploded view - evaporative system

Fuel requirements
Fuel Requirements - all countries except USA Outside America, the Rocket III must be run on 95 RON unleaded fuel. Fuel Requirements - USA In the United States of America where the octane rating of fuel is measured in a different way, the following...

Glossary of terms
The following terms and abbreviations will be found in this section. Below is given a brief explanation of what some of the more common terms and abbreviations mean. Air temperature The air temperature in the air box and intake hose. Air temperature...

Engine management system — description
System description The Rocket III is fitted with an electronic engine management system which encompasses control of both ignition and fuel delivery. The electronic control module (ECM) draws information from sensors positioned around the engine,...

Engine management circuit diagram
Key to wiring circuit diagram Keyitem Description 1Engine Control Module 2Diagnostic Connector 3Vehicle Speed Sensor 4Sidestand Switch 5instrument Assembly 6Accessory Fuel Gauge 7Gear Position Sensor 8Clutch Switch 9Starter Relay 10Fall Detection...

Engine management system diagnostics
The engine management system has an on-board diagnostics feature which allows service technicians to retrieve stored data from the ECM using a Triumph service tool. Full details of the tool's operation and how to interpret the results are given...

Diagnostic trouble codes (DTC)
Diagnostic trouble codes (DTCs) are logged in the ECM memory when there is a confirmed fault in the system. The codes are reported to the Triumph diagnostic tool as a four digit code. As mentioned earlier, when the system detects a fault, it begins...

Service diagnostic tool
1. Memory card; 2. Screen; 3. Return key; 4. Up key; 5. Down key; 6. Validate key; 7. Help key The memory card (1) contains all the information necessary to allow the technician to follow a number of different paths to: Diagnose faults Obtain data...

Electrical connectors
Before beginning any diagnosis, the following connector related information should be noted: Note: A major cause of hidden electrical faults can be traced to faulty electrical connectors. For example: Dirty/corroded terminals. Damp terminals. Broken...

Crankshaft sensor — pinpoint tests
Fault CodePossible causeAction P0335Crankshaft sensor system faultView & note diagnostic tool "freeze frame" data if available. Ensure sensor is fitted correctly and connector is secure. Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests...

Idle speed conrol — pinpoint tests
Fault CodePossible causeAction P0505ISC stepper motor/ wiring faultView & note diagnostic tool "freeze frame" data if available.View & note diagnostic tool "sensor" data.Ensure sensor connector is secure.Disconnect ECM and proceed to pinpoint test 1...

Fuel injectors — pinpoint tests
Fault CodePossible causeAction P0201/02/03Injection system fault - Injector 1/2/3- Misfire indicates open circuit- Flooding indicates short circuitView & note diagnostic tool "freeze frame" data if available.Ensure relevant injector connector is...

Throttle position sensor — pinpoint tests
Fault CodePossible causeAction P0122P0123Throttle position sensor low input voltage (short to ground or open circuit)Throttle position sensor high input voltage (short circuit to sensor supply)View & note diagnostic tool "freeze frame" data if...

Purge valve — pinpoint tests
Fault CodePossible causeAction P0444Open circuit or short circuit to earthView & note diagnostic tool "sensor" data.Ensure purge valve connector is secure. Disconnect ECM and proceed to pinpoint test 1 P0445Short circuit to battery+Disconnect purge...

Ignition coils — pinpoint tests
Fault CodePossible causeAction P0351/52/53Ignition system fault - Ign coil 1/2/3View & note diagnostic tool "freeze frame" data if available.Ensure relevant ign coil connector is secure. Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests...

Coolant temperature sensor — pinpoint tests
Fault CodePossible causeAction P0118Open circuit, or short circuit to battery+View & note diagnostic tool "freeze frame" data if available.View & note diagnostic tool "sensor" data.Ensure sensor connector is secure. Disconnect ECM and proceed to...

Inlet air temperature sensor — pinpoint tests
Fault CodePossible causeAction P0113Open circuit, or short circuit to battery+View & note diagnostic tool "freeze frame" data if available.View & note diagnostic tool "sensor" data.Ensure sensor connector is secure. Disconnect ECM and proceed to...

Fuel pump relay — pinpoint tests
Fault CodePossible causeAction P1231Fuel pump relay open circuit, or short circuit to groundCheck if pump runs briefly when ignition is switched on.Ensure fuel pump relay connector is secure.Disconnect ECM and proceed to pinpoint test 1 P1232Short...

System voltage — pinpoint tests
Fault CodePossible causeAction P0560Bike voltage system faultView & note diagnostic tool "sensor" data.Ensure voltage across battery is acceptable, note voltage.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests TestResultAction 1 Check...

Cooling fan relay — pinpoint tests
Fault CodePossible causeAction P1552Fan relay open circuit, or short circuit to groundView & note diagnostic tool "sensor" data.Ensure fan relay connector is secure.Disconnect ECM and proceed to pinpoint test 1 P1553Short circuit to...

Tachometer — pinpoint tests
Fault CodePossible causeAction P0654Tachometer system faultView & note "freeze frame" data if available.View & note "sensor" data.Ensure instrument connector is secure.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests TestResultAction 1...

Coolant temperature indication — pinpoint tests
Fault CodePossible causeAction P1115Temperature Indication system faultView & note "freeze frame" data if available.View & note "sensor" data.Ensure instrument connector is secure.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests...

Vehicle speed output — pinpoint tests
Fault CodePossible causeAction P1500Vehicle Speed Circuit FaultView & note "freeze frame" data if available.View & note "sensor" data.Ensure instrument connector is secure.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests TestResultAction...

Lambda sensor — pinpoint tests
Fault CodePossible causeAction P0130Lambda sensor circuit fault.View & note «freeze frame» data if available.View & note «sensor» data.Ensure sensor connector is secure.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests TestResultAction 1...

Lambda sensor heater — pinpoint tests
Fault CodePossible causeAction P0031Lambda sensor heater circuit short circuit to ground or open circuit.View & note «freeze frame» data if available.View & note «sensor» data.Ensure sensor connector is secure.Disconnect ECM and proceed to pinpoint...

Fall detection switch — pinpoint tests
Fault CodePossible causeAction P1631Fall detection switch low input voltageView & note "freeze frame" data if available.View & note "sensor" data.Ensure switch connector is secure.Disconnect ECM and proceed to pinpoint test 1 P1632Fall detection...

2nd throttle position sensor — pinpoint tests
Fault CodePossible causeAction P02222nd throttle position sensor low voltage, (short circuit to ground or open circuit)View & note "freeze frame" data if available.View & note "sensor" data.Ensure sensor connector is secure.Disconnect ECM and...

2nd throttle actuator — pinpoint tests
Fault CodePossible causeAction P06382nd throttle actuator motor / wiring faultView & note «freeze frame» data if available.View & note «sensor» data.Ensure actuator connector is secure.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests...

Vehicle speed sensor — pinpoint tests
Fault CodePossible causeAction P0500Vehicle speed sensor circuit faultView & note «freeze frame» data if available.View & note «sensor» data.Ensure sensor connector is secure.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests...

Ambient pressure sensor — pinpoint tests
Fault CodePossible causeAction P1107Ambient pressure sensor circuit short circuit to groundView & note "freeze frame" data if available.View & note "sensor" data.Ensure sensor connector is secure.Disconnect ECM and proceed to pinpoint testl:...

Manifold absolute pressure (MAP) sensor — pinpoint tests
Fault CodePossible causeAction P0107MAP sensor circuit short circuit to groundView & note «freeze frame» data if available.View & note «sensor» data.Ensure sensor connector is secure.Disconnect ECM and proceed to pinpoint testl: P0108MAP sensor...

Gear position sensor — pinpoint tests
Fault CodePossible causeAction P0705Gear position sensor circuit faultView & note «freeze frame» data if available.View & note «sensor» data.Ensure sensor connector is secure.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests...

Fuel level sensor circuit — pinpoint tests
Fault CodePossible causeAction P0460Fuel level sensor circuit faultView & note «freeze frame» data if available.View & note «sensor» data.Ensure sensor connector is secure.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests TestResultAction...

Fuel level warning light circuit — pinpoint tests
Fault CodePossible causeAction P1610Low fuel alarm light faultEnsure instrument connector is secure.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests TestResultAction 1 Check cable and terminal integrity:- ECM pin A30- Instrument pin...

Fuel level gauge — pinpoint tests
Fault CodePossible causeAction P0656Accessory fuel level gauge circuit faultEnsure fuel level gauge connector is secure.Disconnect ECM and proceed to pinpoint test 1 Pinpoint tests TestResultAction 1 Check cable and terminal integrity:- ECM pin A08-...

Fault finding — non electrical
SymptomPossible cause(s) Poor throttle response at low RPMLow fuel pressure caused by filter blockage/leaks Low fuel pressure caused by loose fuel pipes to the fuel pump and filter Cutting out at idleThrottle bodies out of balance ISC (Idle Speed...

Fuel tank — removal and installation
Note: The fuel tank may be raised without being removed completely, for access to the top of the engine, ignition coils, spark plugs etc. Warning! Observe the warning advice given in the general information section on the safe handling of fuel and...

Fuel pump, filter and pressure regulator — removal and installation
Removal 1. Remove the fuel tank as described on page 11.100. Warning! Observe the warning advice given in the general information section on the safe handling of fuel and fuel containers. A fire, causing personal injury and damage to property could...

Airbox, intake duct and hoses — removal and installation
Removal 1. Remove the rider's seat as described on page 17.9. 2. Disconnect and remove the battery as described on page 18.9. 3. Remove the fuel tank as described on page 11.100. 4. Remove both side covers as described on page 17.9. 5. Remove the...

Air filter — removal and installation
Removal 1. Remove the rider's seat as described on page 17.9. 2. Disconnect the battery negative (black) lead first. 3. Pivot the took kit upwards to gain access to the top of the air box. 4. Release the four screws securing the air filter cover to...

Intake air temperature sensor — removal and installation
Removal 1. Remove the rider's seat as described on page 17.9. 2. Disconnect the battery negative (black) lead first. 3. Raise and prop the fuel tank as described on page 11.98. 4. Disconnect the electrical multi-piug from the sensor. 1. Air...

Manifold absolute pressure (MAP) sensor — removal and installation
Removal 1. Remove the rider's seat as described on page 17.9. 2. Disconnect the battery negative (black) lead first. 3. Raise and prop the fuel tank as described on page 11.98. 4. Disconnect the electrical multi-plug from the sensor. 1. MAP sensor;...

Barometric pressure sensor — removal and installation
Removal 1. Remove the rider's seat as described on page 17.9. 2. Disconnect the battery negative (black) lead first. 3. Remove the right hand side cover as described on page 17.9. 4. Disconnect the electrical multi-plug from the sensor. 1....

Gear position sensor — removal and installation
Removal 1. Remove the rider's seat as described on page 17.9. 2. Disconnect the battery negative (black) lead first. 3. Remove the engine infill panel from the left hand side of the engine (see page 17.10). Note: Behind the engine infill panel,...

Road speed sensor — removal and installation
Removal 1. Remove the rider's seat as described on page 17.9. 2. Disconnect the battery negative (black) lead first. 3. Remove the engine infill panel from the left hand side of the engine (see page 17.10). Note: Behind the engine infill panel,...

Crankshaft position sensor — removal and installation
Removal 1. Remove the rider's seat as described on page 17.9. 2. Disconnect the battery negative (black) lead first. 3. Remove the engine infill panel from the left hand side of the engine (see page 17.10). Note: Behind the engine infill panel,...

Throttle cables — removal and installation
Warning! The throttle grip controls the throttle valves in the throttle bodies. If the throttle cables are incorrectly adjusted, either too tight or too loose, the throttle may be difficult to control and performance will be adversely affected....

Throttle body balancing
Note: Rocket III throttles cannot be balanced using equipment to measure vacuum in each throttle. Instead, the Triumph diagnostic tool must be used. 1. Remove the intake cover as described on page 11.98 to allow access to the adjuster screws. 2....

Throttle body — removal and installation
Removal 1. Remove the rider's seat. 2. Disconnect the battery negative (black) lead first. 3. Raise and prop the fuel tank as described on page 11.98. 4. Noting their orientation, release the three clips securing the intake plenum to the throttle...

Injectors and fuel rail — removal and installation
Removal 1. Remove rider's seat. 2. Disconnect the battery, negative (black) lead first. 3. Remove the throttle bodies as described on page 11.122. 4. Remove the three screws securing the fuel rail and fuel hose to the throttle body assembly. 1. Fuel...

Primary throttle potentiometer — removal and installation
Note: The primary and secondary throttle position sensors are different and must never be transposed. For ease of identification, the primary throttle positron sensor has a shorter connector cable than the secondary. Removal 1. Remove the rider's...

Secondary throttle potentiometer — removal and installation
Note: The primary and secondary throttle position sensors are different and must never be transposed. For ease of identification, the primary throttle position sensor has a shorter connector cable than the secondary. Removal 1. Remove the rider's...

Idle speed control stepper motor — removal and installation
Removal 1. Remove the rider's seat 2. Disconnect the battery, negative (black) lead first. 3. Remove the throttle bodies as described on page 11.122. 4. Remove the nut, metal washer and plastic washer attaching the idle control stepper arm to the...

Engine management adaption
General information The engine management system fitted to this model is adaptive. This means that the system is able to learn about new or changing operating conditions and continuously adapt itself without needing to constantly make major...

Exhaust system — removal and installation
Removal Warning! If the engine has recently been running, the exhaust components may be hot to the touch. Contact with the hot components may cause damage to exposed skin. To avoid skin damage, always allow the hot parts to cool before working on...

Evaporative loss control system — California models only
All California models are fitted with an evaporative emissions control system to prevent the exhausting of fuel vapour into the atmosphere. A canister containing activated charcoal, located beneath the left hand side cover, absorbs hydrocarbon...

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Rocket III (2004-2018)