Toyota Yaris: Fuel Pressure Sensor / Removal
REMOVAL
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during No. 2 fuel pressure sensor removal/installation are shown below.
Necessary Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
Replacement of No. 2 fuel pressure sensor (for low pressure side) | Inspection after repair | -
Poor idle, etc.
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Engine start function, etc.
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CAUTION:
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Never perform work on fuel system components near any possible ignition sources.
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Vaporized fuel could ignite, resulting in a serious accident.
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Do not perform work on fuel system components without first disconnecting the cable from the negative (-) auxiliary battery terminal.
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Sparks could cause vaporized fuel to ignite, resulting in a serious accident.
NOTICE:
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After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 120 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal.
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This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.
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HINT:
When the cable is disconnected/reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.
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Learning completes when vehicle is driven
Effect/Inoperative Function When Necessary Procedures are not Performed | Necessary Procedures | Link |
Lane tracing assist system | Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 second or more. |
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Pre-collision system |
Stop and start system | Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes) |
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Learning completes when vehicle is operated normally
Effect/Inoperative Function When Necessary Procedures are not Performed | Necessary Procedures | Link |
Power door lock control system | Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch. |
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Air conditioning system | After the ignition switch is turned to ON, the servo motor standard position is recognized. | - |
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.
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2. DISCHARGE FUEL SYSTEM PRESSURE
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3. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
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4. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
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5. REMOVE NO. 2 FUEL PRESSURE SENSOR
(a) Disconnect the No. 2 fuel pressure sensor connector. | |
(c) Remove the No. 2 fuel pressure sensor together with the No. 2 fuel pressure sensor holder from the fuel delivery pipe sub-assembly.
(d) Remove the O-ring from the No. 2 fuel pressure sensor. | |
COMPONENTS ILLUSTRATION
*1 NO. 2 FUEL PRESSURE SENSOR *2 NO. 1 ENGINE COVER SUB-ASSEMBLY *3 NO. 2 FUEL PRESSURE SENSOR HOLDER *4 O-RING
Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft...
INSPECTION PROCEDURE 1. INSPECT NO. 2 FUEL PRESSURE SENSOR (a) Check the No. 2 fuel pressure sensor output voltage. (1) Apply 5 V between terminals 1 (VC) and 3 (E2)...
Other information:
TERMINALS OF ECU CHECK STEREO COMPONENT EQUALIZER ASSEMBLY
Terminal No. (Symbol) Terminal Description Condition Specified Condition O131-15(+B) - O131-30(GND) Power source Always 11 to 14 V O131-29(IGP) - O131-30(GND) Power source (IG) Ignition switch ON 11 to 14 V O131-14(ACC) - O131-30(GND) Power source (ACC) Ignition switch ACC 11 to 14 V O131-30(GND) - Body ground Ground Always Below 1 Ω O132-1(MC1+) - O131-30(GND) Active noise control microphone input signal Active noise control microphone LH tapped with finger Pulse generation O132-5(MC1-) - O131-30(GND) Active noise control microphone input signal Always Below 1 Ω O132-2(MC2+) - O131-30(GND) Active noise control microphone input signal Active noise control microphone RH tapped with finger Pulse generation O132-6(MC2-) - O131-30(GND) Active noise control microphone input signal Always Below 1 Ω O131-3(NEI) - O131-30(GND) Engine pulse signal Idling with warm engine Pulse generation (See waveform 1) O131-24(FLI-) Active noise control microphone output signal - - O131-9(FLI+) Active noise control microphone output signal - - O131-23(FRI-) Active noise control microphone output signal - - O131-8(FRI+) Active noise control microphone output signal - - O131-5(RRI+) Active noise control microphone output signal - - O131-20(RRI-) Active noise control microphone output signal - - O131-6(RLI+) Active noise control microphone output signal - - O131-21(RLI-) Active noise control microphone output signal - - O131-7(ASG1) Shield ground - - O131-22(ASG2) Shield ground - - O131-12(FR+) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-27(FR-) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-13(FL+) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-28(FL-) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-10(RR+) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131+25(RR-) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-11(RL+) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-28(RL-) - O131-30(GND) Sound signal Active noise control system operating Pulse generation O131-1(CANH) CAN communication signal - - O131-16(CANL) CAN communication signal - - (a) Waveform 1 HINT: The oscilloscope waveform shown in the illustration is an example for reference only...
ComponentsCOMPONENTS ILLUSTRATION
*1 NO. 1 ENGINE UNDER COVER ASSEMBLY *2 ENGINE UNDER COVER LH *3 MANUAL TRANSMISSION FILLER PLUG *4 MANUAL TRANSMISSION DRAIN PLUG *5 GASKET - -
N*m (kgf*cm, ft.*lbf): Specified torque ● Non-reusable part ReplacementREPLACEMENT PROCEDURE 1...
Categories

Smart key
Auxiliary key
Key code number plate
To use the auxiliary key, press the knob and pull out the auxiliary key
from the smart key.

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