2005 TOYOTA AVENSIS fuel pressure

A89211
N·m (kgf·cm, ft·lbf)
: Specified torque
zNon−reusable part zO−ringzGasket zBack−Up Ring No. 1
20 (208, 15)
21 (210, 15)21 (210, 15)
20 (208, 15)
Engine Coolant
Temperature Sensor
Engine Oil Pressure
Switch Assy
Surge Tank Stay No. 1
Insulator No. 2
zE−ring
zBack−Up Ring No. 3
zFuel Injector Seal
13 (127, 9.0)
Fuel Delivery
Pipe Sub−assy
Nozzle Holder Clamp
Knock Sensor
15 (153, 11)
Fuel Injector
zBack−Up Ring No. 2zO−ring19 (194, 14)
14−22
− ENGINE MECHANICALPARTIAL ENGINE ASSY (2AZ−FSE)
AVENSIS Supplement (RM1045E)

1308N−01
A84393
(a)
(b)
(a)
(a)
(b)
A93661
(a)
(a) (a)
(a) (b)
(a)
(b)
13
−12
−
INTAKE TURBOCHARGER SUB −ASSY (1CD −FTV)(From
September, 2003)
AVENSIS Supplement (RM1045E)
REPLACEMENT
1. REMOVE ENGINE UNDER COVER SUB −ASSY NO.1
2. DRAIN ENGINE COOLANT (See page 16 −19)
3. REMOVE RADIATOR SUPPORT OPENING COVER
4. REMOVE ENGINE COVER SUB −ASSY NO.1
(a) Remove the 5 nuts and engine cover.
5. REMOVE VACUUM RESERVOIR SUB −ASSY
(a) Disconnect the 2 vacuum hoses and connector.
(b) Remove the 2 bolts and vacuum reservoir.
6. REMOVE DIFFERENTIAL PRESSURE SENSOR ASSY (See page 14 −108)
7. DISCONNECT ENGINE WIRE (See page 14 −138)
8. REMOVE AIR CLEANER ASSY
(a) Disconnect the PCV hose and connector.
(b) Remove the air cleaner cap with the air cleaner hose.
(c) Remove the air cleaner filter element.
(d) Remove the 3 bolts and air cleaner case.
9. REMOVE AIR TUBE NO.1
(a) Remove the 3 bolts and nut, then separate the air tubeNo. 1.
(b) Loosen the hose clamp bolts.
10. REMOVE FUEL FILTER ASSY (See Pub. No. RM1018E on page 11 −82)

A84387
2to7mm
(0.0787 to
0.2756 in.) 0to5mm
(0 to 0.1969 in.) 0to2mm
(0 to 0.0787 in.) *1*2
*2: *1:
Turbocharger Side
Intercooler Side
A93662
Turbocharger Side:
Intercooler Side: Upward
90_
Cl a m p
Bolt
90_
Cl a m p
Bolt
Front
−
INTAKE TURBOCHARGER SUB −ASSY (1CD −FTV)(From
September, 2003)13 −19
AVENSIS Supplement (RM1045E)
53. INSTALL AIR TUBE NO.1
(a) Install the air hose and hose clamps as shown in the il-
lustration.
(b) Tighten the hose clamps as shown in the illustration. Torque: 6.0 N
m (61 kgf
cm, 53 in.
lbf)
(c) Install the air tube No. 1 with the 3 bolts and nut. Torque: 25 N
m (255 kgf
cm, 18 ft
lbf)
54. INSTALL DIFFERENTIAL PRESSURE SENSOR ASSY (See page 14 −108)
55. INSTALL AIR CLEANER ASSY
Torque: 7.0 N
m (71 kgf
cm, 62 in.
lbf)
56. INSTALL VACUUM RESERVOIR SUB −ASSY
Torque: 8.3 N
m (85 kgf
cm, 73 in.
lbf)
57. INSTALL ENGINE COVER SUB −ASSY NO.1
Torque: 8.0 N
m (82 kgf
cm, 71 in.
lbf)
58. ADD ENGINE COOLANT (See page 16 −19)
59. CHECK ENGINE OIL LEVEL
60. CHECK FOR ENGINE COOLANT LEAKS (See page 16 −15)
61. CHECK FOR ENGINE OIL LEAKS
62. CHECK FOR FUEL LEAKS (See page 11 −46)
63. CHECK FOR EXHAUST GAS LEAKS

170IY−01
A56466
20 W−50
15 W−40
10 W−30
5W−30 PREFERRED
Before Next Oil Change Temperatuer Range Anticipated416 2738
0 20 40 60 80 100 −29
−20−18−7 _C
_F
Recommended Viscosity (SAE)
B14332
Oil Pressure Switch
B14333
Oil Pressure Gauge
− LUBRICATIONLUBRICATION SYSTEM (1CD−FTV)(From September,
2003)17−9
AVENSIS Supplement (RM1045E)
LUBRICATION SYSTEM (1CD−FTV)(From September, 2003)
ON−VEHICLE INSPECTION
1. CHECK ENGINE OIL LEVEL
(a) Warm up the engine. Stop the engine, then wait for 5 minutes.
(b) Check that the engine oil level is between the 2 marks on the oil level gage.
If low, check for leakage and add oil up to the upper mark.
NOTICE:
Do not fill with engine oil above the upper mark.
2. CHECK ENGINE OIL QUALITY
(a) Check the oil for deterioration, water intrusion, discoloring
or thinning.
If the quality is visibly poor, replace the oil.
Oil grade:
Use ACEA B1, API grade CF−4, CF or G−DLD−1.
(You may also use API CE or CD.)
SAE 5W−30 is the best choice for your vehicle in
terms of good fuel economy and good starting in cold
weather.
3. REMOVE OIL PRESSURE SWITCH ASSY
(a) Disconnect the oil pressure switch connector.
(b) Using a deep socket wrench 24mm, remove the oil pres-
sure switch.
4. INSTALL OIL PRESSURE GAUGE
(a) Install the oil pressure gauge.
5. WARM UP ENGINE
6. CHECK OIL PRESSURE
Oil pressure:
At idle29 kPa (0.3 kgf/cm2, 4.3 psi) or more
At 4,500 rpm245 to 588 kPa (2.5 to 6.0 kgf/cm2, 36 to 85 psi) or more
7. REMOVE OIL PRESSURE GAUGE

05–106
–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DTC P0171 SYSTEM TOO LEAN (BANK 1)
DTC P0172 SYSTEM TOO RICH (BANK 1)
CIRCUIT DESCRIPTION
The fuel trim is related to the feedback compensation value, not to the bas\
ic injection time. The fuel trim in-
cludes the short–term fuel trim and the long–term fuel trim.
The short–term fuel trim is the short–term fuel compensation used to \
maintain the air–fuel ratio at its ideal
theoretical value. The signal from the heated oxygen sensor indicates whether the air–fuel r\
atio is rich or
lean compared to the ideal theoretical value, triggering a reduction in the \
fuel volume if the air–fuel ratio is
rich, and an increase in the fuel volume if it is lean.
The long–term fuel trim is the overall fuel compensation in order to bal\
ance the short–term fuel trim for a
continual deviation from the central value by individual engine differences, operating environment and age
deterioration.
If both the short–term fuel trim and the long–term fuel trim are l\
ean or rich beyond a standard level, it is de-
tected as a malfunction in the SFI system. The ECM illuminates the MIL and the\
DTC is set.
DTC No.DTC Detection ConditionTrouble Area
P0171
When air–fuel ratio feedback is stable after warming up engine,
fuel trim is considerably in error on lean side
(2 trip detection logic)
 Air induction system
 Injector blockage
 Mass air flow meter
 Engine coolant temperature sensor
 Fuel pressure
 Gas leakage in exhaust system
 Open or short in heated oxygen sensor (sensor 1) circuit
 Heated oxygen sensor (sensor 1)
 PCV valve and hose
 PCV hose connection
 ECM
P0172
When air–fuel ratio feedback is stable after warming up engine,
fuel trim is considerably in error on rich side
(2 trip detection logic)
Injector leakage or blockage
 Mass air flow meter
 Engine coolant temperature sensor
 Ignition system
 Fuel pressure
 Gas leakage in exhaust system
 Open or short in heated oxygen sensor (sensor 1) circuit
 Heated oxygen sensor (sensor 1)
 ECM
HINT:
When DTC P0171 is set, the actual air–fuel ratio is lean. When DTC P0172 is set, the actual air–fuel\

ratio is rich.
If the vehicle runs out of fuel, the air–fuel ratio is lean and DTC P01\
71 may be set. The MIL then illumi-
nates.
If the total of the short–term fuel trim value and long–term fuel trim value is within
20 %, the system
is functioning normally.
WIRING DIAGRAM
Refer to DTC P0130 on page 05–74.
05KO5–02

+25 %
–12.5 %
More than 0.5 V
Less than 0.4V
Case 1
Case 2
Case 3
Case 4
Output Voltage of Heated Oxygen
Sensor (sensor 1: front sensor)
Injection volume
Output voltage
Output Voltage of Heated Oxygen
Sensor (sensor 2: rear sensor)Main Suspect
Trouble Area
OK
+25 %
–12.5 %
More than 0.5 V
Less than 0.4V
Injection volume
Output voltage
+25 %
–12.5 %
More than 0.5 V
Less than 0.4V
Injection volume
Output voltage
Sensor 1: front sensor
(Sensor 1, heater, sensor 1
circuit)
+25 %
–12.5 %
More than 0.5 V
Less than 0.4V
Injection volume
Output voltage
+25 %
–12.5 %
Injection volume
Output voltage
NG
+25 %
–12.5 %
Injection volume
Output voltage
NG
+25 %
–12.5 %
Injection volume
Output voltage
NG
+25 %
–12.5 %
Injection volume
Output voltage
NGExtremely rich or lean actual
air–fuel ratio
(Injector, fuel pressure, gas
leakage in exhaust system,
etc.) OK
OK
OK
Almost no reaction

Sensor 2: rear sensor
(Sensor 2, heater, sensor 2
circuit)
Almost no reaction Almost no reactionAlmost no reaction
05–108
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
The following A/F Control procedure enables the technician to check and graph the voltage output of both
the heated oxygen sensors.
To display the graph, select the following menu items on the tester: View / Line Graph.
NOTICE:
If the vehicle is short of fuel, the air–fuel ratio becomes lean and the heated oxygen sensor DTCs will
be recorded, and the MIL then illuminates.
HINT:
Read freeze frame data using the intelligent tester II. Freeze frame data record the engine condition
when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the
vehicle was moving or stationary, if the engine was warmed up or not, if the air–fuel ratio was lean or
rich, and other data from the time the malfunction occurred.
A high heated oxygen sensor (sensor 1) voltage (0.5 V or more) could be caused by a rich air–fuel
mixture. Check for conditions that would cause the engine to run rich.
A low heated oxygen sensor (sensor 1) voltage (0.4 V or less) could be caused by a lean air–fuel mix-
ture. Check for conditions that would cause the engine to run lean.

//
30
20
10
5
3
02040 0.11
0.3
0.2 0.52
60 80 100 –20
(–4) (104) (140) (176)(32) (68) (212)
A81700
Ohmmeter
Acceptable
Temperature C (F)
Resistance kΩ
– DIAGNOSTICSSFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
05–111
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
5 INSPECT ENGINE COOLANT TEMPERATURE SENSOR(RESISTANCE)
(a) Remove the engine coolant temperature sensor.
(b) Measure the resistance between the terminals of the en-
gine coolant temperature sensor.
Standard:
Tester ConnectionSpecified Condition
1 – 22.32 to 2.59 kΩ at 20C (68F)
1 – 20.310 to 0.326 kΩ at 80C (176F)
NOTICE:
When checking the engine coolant temperature sensor in
water, be careful not to allow water to get in contact with the
terminals. After checking, dry the sensor.
HINT:
Alternative procedure: Connect an ohmmeter to the installed
engine coolant temperature sensor and read the resistance.
Use an infrared thermometer to measure the engine tempera-
ture in the immediate vicinity of the sensor. Compare these val-
ues against the resistance/temperature graph. Change the en-
gine temperature (warm up or allow to cool down) and repeat
the test.
NG REPLACE ENGINE COOLANT TEMPERATURE
SENSOR
OK
6 CHECK FOR SPARK AND IGNITION
(See page 18–3 of Pub. No. RM1018E AVENSIS)
OK: The spark occurs.
NG REPAIR OR REPLACE
OK
7 CHECK FUEL PRESSURE (See page 11–5 of Pub. No. RM1018E AVENSIS)
(a) Check the fuel pressure (high or low pressure).
NG CHECK AND REPLACE FUEL SYSTEM
OK
8 CHECK FOR EXHAUST GAS LEAKAGE
OK: No gas leak.
NG REPAIR OR REPLACE EXHAUST GAS
LEAKAGE POINT
OK

05–28
–
DIAGNOSTICS SFI SYSTEM (1ZZ–FE/3ZZ–FE)(From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E) DTC No.
(See Page) Memory
*1
MIL
Trouble Area
Detection Item
P0115
( 05–60 )Engine Coolant Temperature Cir-
cuitOpen or short in engine coolant temperature sensor circuit
 Engine coolant temperature sensor
 ECM

P0116
( 05–65 )Engine Coolant Temperature Cir-
cuit Range/Performance Prob-
lem
Engine coolant temperature sensor
P0117
( 05–60 )Engine Coolant Temperature Cir-
cuit Low InputShort in engine coolant temperature sensor circuit
 Engine coolant temperature sensor
 ECM

P0118
( 05–60 )Engine Coolant Temperature Cir-
cuit High InputOpen in engine coolant temperature sensor circuit
 Engine coolant temperature sensor
 ECM

P0120
( 05–66 )Throttle/Pedal Position Sensor/
Switch ”A” CircuitThrottle position sensor (built into throttle body)
 ECM
P0121
( 05–73 )Throttle/Pedal Position Sensor/
Switch ”A” Circuit Range/Perfor-
mance Problem
Throttle position sensor (built into throttle body)
P0122
( 05–66 )Throttle/Pedal Position Sensor/
Switch ”A” Circuit Low Input
Throttle position sensor (built into throttle body)
 Short in VTA1 circuit
 Open in VC circuit
 ECM

P0123
( 05–66 )Throttle/Pedal Position Sensor/
Switch ”A” Circuit High Input
Throttle position sensor (built into throttle body)
 Open in VTA1 circuit
 Open in E2 circuit
 VC and VTA1 circuits are short–circuited
 ECM

P0130 *4
( 05–74 )Oxygen Sensor Circuit Malfunc-
tion (Bank 1 Sensor 1)
Open or short in heated oxygen sensor circuit
 Heated oxygen sensor (Sensor 1)
 Heated oxygen sensor heater (Sensor 1)
 EFI relay
 Air induction system
 Fuel pressure
 Injector
 ECM

P0133 *4
( 05–84 )Oxygen Sensor Circuit Slow Re-
sponse (Bank 1 Sensor 1)
Open or short in heated oxygen sensor circuit
 Heated oxygen sensor (Sensor 1)
 Heated oxygen sensor heater (Sensor 1)
 EFI relay
 Air induction system
 Fuel pressure
 Injector
 ECM

P0134
( 05–91 )Oxygen Sensor Circuit No Activ-
ity Detected (Bank 1 Sensor 1)
Open or short in heated oxygen sensor circuit
 Heated oxygen sensor (Sensor 1)
 PCV valve and hose
 EFI relay
 Air induction system
 Fuel pressure
 Injector
 Gas leakage in exhaust system
 ECM

P0136
( 05–100 )Oxygen Sensor Circuit Malfunc-
tion (Bank 1 Sensor 2)
Open or short in heated oxygen sensor circuit
 Heated oxygen sensor (sensor 2)
 Heated oxygen sensor heater (sensor 2)
 EFI relay