2005 SUZUKI SWIFT Valve pcv
[x] Cancel search: Valve pcvPage 21 of 1496
Downloaded from www.Manualslib.com manuals search engine Table of Contents 0- i
0
Section 0
CONTENTS
General Information
General Information ................................ 0A-1
General Description ............................................. 0A-1
Abbreviations ...................................................... 0A-1
Symbols .............................................................. 0A-2
Wire Color Symbols ............................................ 0A-2
Fasteners Information ......................................... 0A-3
Vehicle Lifting Points ........................................... 0A-5
Engine Supporting Points ................................... 0A-7
Vehicle Identification Number ............................. 0A-7
Engine Identification Number .............................. 0A-7
Transmission Identification Number .................... 0A-7
Component Locatio n ........................................... 0A-8
Warning, Caution and Information Labels Location ............................................................ 0A-8
Maintenance and Lubricat ion ................. 0B-1
Precautions........................................................... 0B-1
Precautions for Maintenance and Lubrication ..... 0B-1
Scheduled Maintenance ...................................... 0B-1 Maintenance Schedule under Normal Driving Conditions ......................................................... 0B-1
Maintenance Recommended under Severe Driving Conditions ............................................. 0B-2
Repair Instructions .............................................. 0B-3 Accessory Drive Belt Inspection.......................... 0B-3
Accessory Drive Belt Repl acement ..................... 0B-4
Valve Lash (Clearance) Inspection ..................... 0B-4
Engine Oil and Filter Change .............................. 0B-4
Engine Coolant Change ...... ................................ 0B-5
Exhaust System Inspection ................................. 0B-6
Spark Plug Replacement .................................... 0B-6
Air Cleaner Filter Inspection ................................ 0B-6
Air Cleaner Filter Replac ement ........................... 0B-6 Fuel Lines and Connections Inspection .............. 0B-6
Fuel Filter Replacement ...................................... 0B-7
Fuel Tank Inspection ........................................... 0B-7
PCV Valve Inspection ......................................... 0B-7
Fuel Evaporative Emission Control System
Inspection .......................................................... 0B-7
Brake Discs and Pads Inspection ....................... 0B-7
Brake Hoses and Pipes Inspection ..................... 0B-7
Brake Fluid Inspection......................................... 0B-8
Brake Fluid Replacement .................................... 0B-8
Brake Lever and Cable Inspection ...................... 0B-8
Clutch Fluid Inspection ........................................ 0B-8
Tires Inspection ................................................... 0B-9
Wheel Discs Inspection ....................................... 0B-9
Wheel Bearing Inspection ................................... 0B-9
Suspension System Inspection ........................... 0B-9
Steering System Inspection .............................. 0B-10
Drive Shaft (Axle) Boots Inspection .................. 0B-10
Manual Transaxle Oil Inspection ....................... 0B-10
Manual Transaxle Oil Replacement .................. 0B-10
Automatic Transaxle Fluid Level Inspection...... 0B-11
Automatic Transaxle Fluid Replacement .......... 0B-11
Automatic Transaxle Fluid Cooler Hose Inspection ........................................................ 0B-11
All Latches, Hinges and Locks Inspection......... 0B-11
HVAC Air Filter (If Equipped) Inspection ........... 0B-12
HVAC Air Filter (If Equipped) Replacement ...... 0B-12
Final Inspection for Maint enance Service ......... 0B-12
Specifications .................... .................................0B-13
Tightening Torque Specifications ...................... 0B-13
Special Tools and Equipmen t ...........................0B-13
Recommended Fluids and Lubricants............... 0B-13
Special Tool ...................................................... 0B-14
Page 22 of 1496
Downloaded from www.Manualslib.com manuals search engine 0A-1 General Information:
General Information
General Information
General Description
AbbreviationsS7RS0B0101001
A:
ABDC: After Bottom Dead Center
ABS: Anti-lock Brake System
AC: Alternating Current
A/C: Air Conditioning
A-ELR: Automatic-Emergency Locking Retractor
A/F: Air Fuel Mixture Ratio
ALR: Automatic Locking Retractor
API: American Petroleum Institute
APP sensor: Accelerator Pedal Position Sensor
A/T: Automatic Transmission , Automatic Transaxle
AT D C : After Top Dead Center
ATF: Automatic Transmission Fluid, Automatic
Transaxle Fluid
B:
B+: Battery Positive Voltage
BBDC: Before Bottom Dead Center
BCM: Body Electrical Control Module
BDC: Bottom Dead Center
BTDC: Before Top Dead Center
C:
CAN: Controller Area Network
CKT: Circuit
CKP Sensor: Crankshaft Position Sensor
CMP Sensor: Camshaft Position Sensor
CO: Carbon Monoxide
CPP Switch: Clutch Pedal Position Switch (Clutch
Switch, Clutch Start Switch)
CPU: Central Processing Unit
CRS: Child Restraint System
D:
DC: Direct Current
DLC: Data Link Connector (Assembly Line Diag. Link,
ALDL, Serial Data Link, SDL)
DOHC: Double Over Head Camshaft
DOJ: Double Offset Joint
DRL: Daytime Running Light
DTC: Diagnostic Trouble Code (Diagnostic Code)
E:
EBCM: Electronic Brake Cont rol Module, ABS Control
Module
EBD: Electronic Brake Force Distribution
ECM: Engine Control Module
ECT Sensor: Engine Coolant Temperature Sensor (Water Temp. Sensor, WTS)
EFE Heater: Early Fuel Evaporation Heater (Positive
Temperature Coefficient, PTC Heater)
EGR: Exhaust Gas Recirculation
EGRT Sensor: EGR Temperature Sensor (Recirculated
Exhaust Gas Temp. Sensor, REGTS)
ELR: Emergency Locking Retractor
ESP ®: Electronic Stability Program
EPS: Electronic Power Steering
EVAP: Evaporative Emission EVAP Canister:
Evaporative Emission Canister
(Charcoal Canister)
F:
4WD: 4 Wheel
Drive
G:
GEN: Generator
GND: Ground
GPS: Global Positioning System
H:
HVAC: Heating, Ventilating and Air Conditioning
HC: Hydrocarbons
HO2S: Heated Oxygen Sensor
I:
IAC Valve: Idle Air Control Valve (Idle Speed Control
Solenoid Valve, ISC Solenoid Valve)
IAT Sensor: Intake Air Temperature Sensor (Air
temperature Sensor, ATS)
ICM: Immobilizer Control Module
IG: Ignition
ISC Actuator: Idle Speed Control Actuator
L:
LH: Left Hand
LHD: Left Hand Drive Vehicle
LSPV: Load Sensing Proportioning Valve
M:
MAF Sensor: Mass Air Flow Sensor (Air Flow Sensor, AFS, Air Flow Meter, AFM)
MAP Sensor: Manifold Absolute Pressure Sensor
(Pressure Sensor, PS)
Max: Maximum
MFI: Multiport Fuel Injection (Mu ltipoint Fuel Injection)
Min: Minimum
MIL: Malfunction Indicator Lamp (“SERVICE ENGINE
SOON” Light)
M/T: Manual Transmission, Manual Transaxle
N:
NOx: Nitrogen Oxides
O:
OBD: On-Board Diagnostic System (Self-Diagnosis
Function)
O/D: Overdrive
OHC: Over Head Camshaft
O2S: Oxygen Sensor
P:
PCM: Powertrain Control Module
PCV: Positive Crankcase Ventilation
PNP: Park / Neutral Position
P/S: Power Steering
PSP Switch: Power Steering Pressure Switch (P/S
Pressure Switch)
R:
RH: Right Hand
RHD: Right Hand Drive Vehicle
S:
SAE: Society of Automotive Engineers
Page 31 of 1496
Downloaded from www.Manualslib.com manuals search engine Maintenance and Lubrication: 0B-1
General Information
Maintenance and Lubrication
Precautions
Precautions for Maintenance and LubricationS7RS0B0200001
Air Bag Warning
Refer to “Air Bag Warning in Section 00”.
Scheduled Maintenance
Maintenance Schedule under Normal Driving ConditionsS7RS0B0205001
NOTE
• This interval should be judged by odometer reading or months, whichever comes first.
• This table includes service as scheduled up to 90,000 km (54,000 miles) mileage. Beyond 90,000 km
(54,000 miles), carry out the same services at the same intervals respectively.
Interval Km (x 1,000) 15 30 45 60 75 90
Miles (x 1,000) 9 18 27 36 45 54
Months 12 24 36 48 60 72
Engine
Accessory drive belt (I: ), R: ))——I——R
Valve lash (clearance) (I: )) —I—I—I
Engine oil and oil filter (R: )) RRRRRR
Engine coolant (R: ))— —R— — R
Exhaust system (I: )) —I—I—I
Ignition system
Spark plugs (R: ) )When unleaded fuel is used Iridium Plug
Replace every 60,000 km (36,000
miles) or 48 months
When leaded fuel is used, refer to “Maintenance Recommended under Severe Driving
Conditions”.
Fuel system
Air cleaner filter (R: ), I: )) Paved-road
I I R I I R
Dusty conditions Refer to “Maintenance Recommended
under Severe Driv
ing Conditions”.
Fuel lines and connections (I: )) —I—I—I
Fuel filter (R: )) (See NOTE below) Replace every 105,000 km (63,000
miles)
Fuel tank (I: ))— —I— — I
Emission control system
PCV valve (I: )) ————— I
Fuel evaporative emission control system (I: )) ————— I
Brake
Brake discs and pads (thickness, wear, damage) (I: )) IIIIII
Brake hoses and pipes (leakage, damage, clamp) (I: )) —I—I—I
Brake fluid (R: )) —R—R—R
Brake lever and cable (damage, stroke, operation) (I: )) Inspect at first 15,000 km (9,000 miles
only)
Chassis and body
Clutch (fluid leakage, level) (I: )) —I—I—I
Tires (wear, damage, rotation) / wheels (damage) (I: ) / ) ) IIIIII
Suspension system (tightness, damage, rattle, breakage) (I: )) —I—I—I
Steering system (tightness, damage, breakage, rattle) (I: )) —I—I—I
Drive shaft (axle) boots (I: ))— —I— — I
Manual transaxle oil (leakage, level) (I: ) 1st 15,000 km only) (R: ))I—R——R
Page 37 of 1496
Downloaded from www.Manualslib.com manuals search engine Maintenance and Lubrication: 0B-7
Fuel Filter ReplacementS7RS0B0206011
Fuel filter is installed in fuel pump assembly in fuel tank.
Replace fuel filter or fuel pump assembly with new one,
referring to “Fuel Pump Assembly Removal and
Installation in Section 1G” for proper procedure.
Fuel Tank InspectionS7RS0B0206012
Check fuel tank damage, cracks, fuel leakage, corrosion
and tank bolts looseness.
If a problem is found, repair or replace.
PCV Valve InspectionS7RS0B0206013
Check crankcase ventilation hose and PCV hose for
leaks, cracks or clog, and PCV valve for stick or clog.
Refer to “PCV Valve Inspection in Section 1B” for PCV
valve checking procedure.
Fuel Evaporative Emission Control System
Inspection
S7RS0B0206014
1) Visually inspect hoses for cracks, damage, or excessive bends. Inspect a ll clamps for damage and
proper position.
2) Check EVAP canister for operation and clog, referring to “EVAP Canister Inspection in Section
1B”.
If a malfunction is found, repair or replace.
Brake Discs and Pads InspectionS7RS0B0206015
1) Remove wheel and caliper but don’t disconnect brake hose from caliper. 2) Check disc brake pads and discs for excessive wear,
damage and deflection. Replace parts as necessary.
For details, refer to “Front Disc Brake Pad Inspection
in Section 4B”, “Front Brake Disc Inspection in
Section 4B”, “Rear Disc Brake Pad Inspection in
Section 4C” and/or “Rear Brake Disc Inspection in
Section 4C”.
Be sure to torque caliper pin bolts to specification.
Brake Hoses and Pipes InspectionS7RS0B0206016
Perform this inspection where these is enough light and
use a mirror as necessary.
• Check brake hoses and pipes for proper hookup, leaks, cracks, chafing and other damage.
• Check that hoses and pipes are clear of sharp edges and moving parts.
Repair or replace any of these parts as necessary.
CAUTION!
After replacing any brake pipe or hose, be
sure to carry out air purge operation.
I4RS0B020002-02
I4RS0A020006-01
I3RM0A020006-01
I4RS0A020008-01
Page 47 of 1496
Downloaded from www.Manualslib.com manuals search engine Table of Contents 1-iii
EVAP Canister Purge Valve and Its Circuit
Inspection.......................................................... 1B-2
Vacuum Passage Inspection .............................. 1B-3
Vacuum Hose and Purge Valve Chamber Inspection.......................................................... 1B-3
EVAP Canister Purge Valve Inspection .............. 1B-3
EVAP Canister Inspection ... ................................ 1B-4
EGR Valve Removal and Installation .................. 1B-4
EGR Valve Inspection ......................................... 1B-4
PCV Hose Inspection .......................................... 1B-4
PCV Valve Inspection ......................................... 1B-5
Special Tools and Equipmen t ............................. 1B-5
Special Tool ........................................................ 1B-5
Engine Electrical Devices .. ..................... 1C-1
Repair Instructions .............................................. 1C-1
ECM Removal and Installation ............................ 1C-1
MAP Sensor Inspection ...................................... 1C-2
Electric Throttle Body Assembly On-Vehicle
Inspection.......................................................... 1C-2
Electric Throttle Body System Calibration ........... 1C-5
APP Sensor Assembly On-V ehicle Inspection .... 1C-5
APP Sensor Assembly Removal and Installation ......................................................... 1C-5
APP Sensor Assembly Inspection ...................... 1C-6
ECT Sensor Removal and In stallation ................ 1C-6
ECT Sensor Inspection ....................................... 1C-7
HO2S-1 and HO2S-2 Heater On-Vehicle Inspection.......................................................... 1C-7
HO2S-1 and HO2S-2 Removal and Installation ......................................................... 1C-7
CMP Sensor Removal and In stallation ............... 1C-8
Camshaft Position (CMP) Se nsor Inspection ...... 1C-8
CKP Sensor Removal and Installation ................ 1C-9
CKP Sensor Inspection ....................................... 1C-9
Knock Sensor Removal and Installation ........... 1C-10
Main Relay, Fuel Pump Relay and Starting
Motor Control Relay Inspection....................... 1C-10
MAF and IAT Sensor On-Vehicle Inspection .... 1C-11
MAF and IAT Sensor Removal and Installation ....................................................... 1C-11
MAF and IAT Sensor Inspection ....................... 1C-12
Electric Load Current Sensor On-Vehicle Inspection........................................................ 1C-12
Specifications ..................................................... 1C-13
Tightening Torque Specifications ...................... 1C-13
Engine Mechanical ......... ......................... 1D-1
General Description ............................................. 1D-1
Engine Construction Description ......................... 1D-1
Camshaft Position Control (VVT Variable Valve Timing) System Description .................... 1D-2
Diagnostic Information and Procedures ............ 1D-4 Compression Check ............................................ 1D-4
Engine Vacuum Check ....................................... 1D-5
Valve Lash (Clearance) Inspection ..................... 1D-6
Repair Instructions .............................................. 1D-9 Air Cleaner Components ..................................... 1D-9
Air Cleaner Element Removal and Installation .... 1D-9 Air Cleaner Element Ins
pection and Cleaning ..1D-10
Cylinder Head Co ver Removal and
Installation .......................................................1D-10
Throttle Body and Intake Manifold
Components ....................................................1D-12
Throttle Body On-Vehicle Inspection.................1D-13
Electric Throttle Body Assembly Removal and Installation .......................................................1D-13
Throttle Body Cleaning......................................1D-14
Intake Manifold Removal and Installation .........1D-14
Engine Mountings Components ........................1D-16
Engine Assembly Removal and Installation ......1D-17
Timing Chain Cover Components .....................1D-20
Timing Chain Cover Removal and Installation ..1D-21
Timing Chain Cover Inspection .........................1D-23
Oil Control Valve Removal and Installation .......1D-23
Oil Control Valve Inspection ..............................1D-24
Timing Chain and Chain Tensioner Components ....................................................1D-24
Timing Chain and Chain Tensioner Removal and Installation ................................................1D-25
Timing Chain and Chain Tensioner Inspection ..1D-27
Camshaft, Tappet and Shim Components ........1D-28
Camshaft, Tappet and Shim Removal and Installation .......................................................1D-29
Camshaft, Tappet and Shim Inspection ............1D-31
Valves and Cylinder Head Components ...........1D-34
Valves and Cylinder Head Removal and
Installation .......................................................1D-35
Valves and Cylinder Head Disassembly and Assembly.........................................................1D-37
Valves and Valve Guides Inspection.................1D-40
Cylinder Head Inspection . .................................1D-42
Valve Spring Inspection ....................................1D-43
Pistons, Piston Rings , Connecting Rods and
Cylinders Components ....................................1D-44
Pistons, Piston Rings , Connecting Rods and
Cylinders Removal and Installation .................1D-45
Pistons, Piston Rings , Connecting Rods and
Cylinders Disassembly and Assembly ............1D-46
Cylinders, Pistons and Piston Rings Inspection ........................................................1D-47
Piston Pins and Connecting Rods Inspection ...1D-49
Crank Pin and Connecting Rod Bearings Inspection ........................................................1D-50
Main Bearings, Cran kshaft and Cylinder
Block Components ..........................................1D-53
Main Bearings, Cran kshaft and Cylinder
Block Removal and Installa tion .......................1D-54
Crankshaft Inspection .......................................1D-57
Main Bearings Inspection . .................................1D-59
Sensor Plate Inspection ....................................1D-63
Rear Oil Seal Inspection ...................................1D-63
Flywheel Inspection...........................................1D-63
Cylinder Block Inspection ..................................1D-63
Specifications .................... .................................1D-64
Tightening Torque Specifications ......................1D-64
Special Tools and Equipmen t ...........................1D-66
Recommended Service Material .......................1D-66
Special Tool ......................................................1D-66
Page 56 of 1496
Downloaded from www.Manualslib.com manuals search engine 1A-6 Engine General Information and Diagnosis:
For information about the following items, refer to “Euro
OBD Model: ”.
• Warm-up cycle
• Driving cycle
• 2 driving cycle detection logic
• Pending DTC
Data Link Connector (DLC)S7RS0B1101013
DLC (1) is in compliance with SAE J1962 in the shape of
connector and pin assignment.
OBD serial data line (3) (K line of ISO 9141) is used for
SUZUKI scan tool or OBD generic scan tool to
communicate with ECM, Air bag SDM, HVAC control
module (auto A/C model), immobilizer control module (in
ECM), BCM (Body electrical Control Module), TCM
(Transmission Cont rol Module (A/T model)) and ABS/
ESP ® control module.
Engine and Emission Control System
Description
S7RS0B1101004
The engine and emission control system is divided into 4
major sub-systems: air in take system, fuel delivery
system, electronic control sy stem and emission control
system.
Air intake system includes air cleaner, throttle body, IAC
valve and intake manifold.
Fuel delivery system includes fuel pump, delivery pipe,
etc.
Electronic control system incl udes ECM, various sensors
and controlled devices.
Emission control system includes EGR, EVAP and PCV
system.
2. B + (Unswitched vehicle battery positive)
4. ECM ground (Signal ground)
5. Vehicle body ground (Chassis ground)
2
345
1
910111213141516
12345678
1I4RS0B110002-01
Page 91 of 1496
Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-41
Engine Symptom DiagnosisS7RS0B1104010
Perform troubleshooting referring to the followings when ECM has detected no DTC and no abnormality has been
found in “Visual Inspection” and “Engine Basic Inspection”.
Condition Possible cause Correction / Reference Item
Hard starting (Engine
cranks OK) Faulty spark plug
“Spark Plug Inspection in Section 1H”
Leaky high-tension cord “High-Tension Cord Inspection in Section 1H”
Loose connection or disconnection of
high-tension cord(s) or lead wire(s) “High-Tension Cord Removal and Installation
in Section 1H”
Faulty ignition coil “Ignition Coil Assembly (Including ignitor)
Inspection in Section 1H”
Dirty or clogged fuel hose or pipe “Fuel Pressure Check”
Malfunctioning fuel pump “Fuel Pressure Check”
Air drawn in through intake manifold
gasket or throttle body gasket
Faulty electric throttle body assembly “Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”
Faulty APP sensor assembly “APP Sensor Assembly Inspection in Section
1C”
Faulty ECT sensor or MAF sensor “ECT Sensor Inspection in Section 1C” or
“MAF and IAT Sensor Inspection in Section
1C”
Faulty ECM
Low compression “Compression Check in Section 1D”
Poor spark plug tightening or faulty
gasket “Spark Plug Removal and Installation in
Section 1H”
Compression leak from valve seat “Valves and Valve Guides Inspection in
Section 1D”
Sticky valve stem “Valves and Valve Guides Inspection in
Section 1D”
Weak or damaged valve springs “Valve Spring Inspection in Section 1D”
Compression leak at cylinder head
gasket “Cylinder Head Inspection in Section 1D”
Sticking or damaged piston ring “Cylinders, Pistons and Piston Rings
Inspection in Section 1D”
Worn piston, ring or cylinder “Cylinders, Pistons and Piston Rings
Inspection in Section 1D”
Malfunctioning PCV valve “PCV Valve Inspection in Section 1B”
Camshaft position control (VVT) system
out of order “Oil Control Valve Inspection in Section 1D”
Faulty EGR system “EGR System Inspection in Section 1B”
Low oil pressure Improper oil viscosity “Engine Oil and Filter Change in Section 0B”
Malfunctioning oil pressure switch “Oil Pressure Switch Inspection in Section 9C”
Clogged oil strainer “Oil Pan and Oil Pump Strainer Cleaning in
Section 1E”
Functional deterioration of oil pump “Oil Pump Inspection in Section 1E”
Worn oil pump relief valve “Oil Pump Inspection in Section 1E”
Excessive clearance in various sliding
parts
Engine noise – Valve
noise
NOTE
Before checking
mechanical noise, make
sure that:
• Specified spark plug is used.
• Specified fuel is used.
Improper valve lash “Camshaft, Tappet and Shim Inspection in
Section 1D”
Worn valve stem and guide “Valves and Valve Guides Inspection in
Section 1D”
Weak or broken valve spring “Valve Spring Inspection in Section 1D”
Warped or bent valve “Valves and Valve Guides Inspection in
Section 1D”
Page 95 of 1496
Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-45
Engine has no powerFaulty spark plug “Spark Plug Inspection in Section 1H”
Faulty ignition coil with ignitor “Ignition Coil Assembly (Including ignitor)
Inspection in Section 1H”
Leaks, loose connection or
disconnection of high-tension cord “High-Tension Cord Removal and Installation
in Section 1H”
Faulty knock sensor “DTC P0327 / P0328: Knock Sensor 1 Circuit
Low / High”
Clogged fuel hose or pipe “Fuel Pressure Check”
Malfunctioning fuel pump “Fuel Pump and Its Circuit Check”
Air drawn in through intake manifold
gasket or throttle body gasket
Engine overheating Condition “Engine overheating”
Malfunctioning EGR valve “EGR Valve Inspection in Section 1B”
Poor performance of ECT sensor or
MAF sensor “ECT Sensor Inspection in Section 1C” or
“MAF and IAT Sensor Inspection in Section
1C”
Faulty electric throttle body assembly “Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”
Faulty APP sensor assembly “APP Sensor Assembly Inspection in Section
1C”
Faulty fuel injector(s) “Fuel Injector Circuit Check”
Faulty ECM
Dragging brakes Condition “Dragging brakes” in “Brakes
Symptom Diagnosis in Section 4A”
Slipping clutch Condition “Slipping clutch” in “Clutch System
Symptom Diagnosis in Section 5C”
Low compression “Compression Check in Section 1D”
Camshaft position control (VVT) system
out of order “Oil Control Valve Inspection in Section 1D”
Improper engine idling or
engine fails to idle Faulty spark plug
“Spark Plug Inspection in Section 1H”
Leaky or disconnected high-tension cord “High-Tension Cord Removal and Installation
in Section 1H”
Faulty ignition coil with ignitor “Ignition Coil Assembly (Including ignitor)
Inspection in Section 1H”
Fuel pressure out of specification “Fuel Pressure Check”
Leaky manifold, throttle body, or cylinder
head gasket
Malfunctioning EGR valve “EGR Valve Inspection in Section 1B”
Faulty evaporative emission control
system “EVAP Canister Purge Inspection in Section
1B”
Faulty EGR system “EGR System Inspection in Section 1B”
Faulty fuel injector(s) “Fuel Injector Circuit Check”
Poor performance of ECT sensor or
MAF sensor “ECT Sensor Inspection in Section 1C” or
“MAF and IAT Sensor Inspection in Section
1C”
Faulty electric throttle body assembly “Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”
Faulty APP sensor assembly “APP Sensor Assembly Inspection in Section
1C”
Faulty ECM
Loose connection or disconnection of
vacuum hoses
Malfunctioning PCV valve “PCV Valve Inspection in Section 1B”
Engine overheating Condition “Engine overheating”
Low compression “Compression Check in Section 1D”
Camshaft position control (VVT) system
out of order “Oil Control Valve Inspection in Section 1D”
Condition Possible cause Correction / Reference Item