Diagnostic Information And Procedures; Engine Symptom Diagnosis - Suzuki GSX-R1000 Service Manual

Manuals by Motomatrix / The Solution For Lost Motorcycle Coded Keys
1A-8 Engine General Information and Diagnosis:
"A": ECM
"L": Exhaust control valve actuator (EXCVA)
"M": Cooling fan relay
"N": Cooling fan
"O": Intake air temperature sensor (IATS)
"P": PAIR control solenoid valve

Engine Symptom Diagnosis

Condition
Engine will not start or is
hard to start
(Compression too low)
Engine will not start or is
hard to start (Plug not
sparking)
Engine will not start or is
hard to start (No fuel
reaching the intake
manifold)
email: info@motomatrix.co.uk / www.motomatrix.co.uk
"Y"
"O"
"S"
"P"
"T"
"Q"
"R"
"U"
"N"
"L"
"Q": Camshaft position sensor (CMPS)
"R": Ignition coil (IG coil)
"S": Secondary fuel injector
"T": Primary fuel injector
"U": Engine coolant temperature sensor (ECTS)
"V": Speed sensor

Diagnostic Information and Procedures

Possible cause
Valve clearance out of adjustment.
Worn valve guide or poor seating of
valve.
Mistimed valve.
Excessively worn piston ring.
Worn-down cylinder bore.
Too slow Starter motor cranking.
Poor seating of spark plug.
Fouled spark plug.
Wet spark plug.
Defective ignition coil.
Defective CKP sensor.
Defective ECM.
Open-circuited wiring connection.
Clogged fuel filter or fuel hose.
Defective fuel pump.
Defective fuel pressure regulator.
Defective fuel injector.
Defective fuel pump relay.
Defective ECM.
Open-circuited wiring connection.
"A"
"W"
"X"
"V"
"W": Atmospheric pressure sensor (APS)
"X": Gear position switch (GP switch)
"Y": Drive mode selector
"Z": Combination meter
Correction / Reference Item
Adjust.
Repair or replace.
Adjust.
Replace.
Replace.
Refer to "Starting System Diagram" in Section
1I (Page 1I-1).
Retighten.
Clean.
Clean and dry.
Replace.
Replace.
Replace.
Repair or replace.
Clean or replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Check and repair.
"M"
I947H1110006-01
B947H11104001