Related PIDs: Overview

Item (definition)	Unit/Condition	Definition	Condition/Specification (Reference)
FUELPW	Sec	Fuel injection pulse width (fuel injector energization time) output to fuel injector	Idle (after warm up) Approx. 1.71 ms Racing (engine speed is 2, 000 rpm) Approx. 1.35 ms Racing (engine speed is 4, 000 rpm) Approx. 1.21 ms
RPM	RPM	Engine speed	Displays engine speed

If data monitor function of M-MDS is not used:

Warm up the engine and idle it.
Measure the fuel injector control signal wave profile using the oscilloscope while performing the following steps:
1. Depress the accelerator pedal and increase the engine speed to 4, 000 rpm.
2. Quickly release the accelerator pedal (brake pedal is not depressed) and verify that the wave profile constant B+, and the wave appears when the engine speed drops below 1, 200 rpm. (Refer to PCM INSPECTION .)
  - If not as specified, inspect the following:
    - ECT sensor No. 1 and related wiring harness (Refer to ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION .)

Item (definition)	Unit/Condition	Definition	Condition/Specification (Reference)
APP1	%	Accelerator pedal opening angle (absolute value) input from APP sensor No. 1	Accelerator pedal released: Approx. 16% Accelerator pedal fully depressed: Approx. 91%
APP1	V	APP sensor No. 1 voltage	Accelerator pedal released: Approx. 0.78 V Accelerator pedal fully depressed: Approx. 4.54 V
APP2	%	Accelerator pedal opening angle (absolute value) input from APP sensor No. 2	Accelerator pedal released: Approx. 7.84% Accelerator pedal fully depressed: Approx. 45.49%
APP2	V	APP sensor No. 2 voltage	Accelerator pedal released: Approx. 0.39 V Accelerator pedal fully depressed: Approx. 2.27 V
EVAPCP	%	Purge solenoid valve control duty value	Idle (after warm up) 0% Racing (Engine speed 2, 000 rpm) 33- 35% (ECT is 94 °C {201 °F}) Racing (Engine speed 4, 000 rpm) 53- 55% (ECT is 94 °C {201 °F})
MAF	g/Sec	Mass air flow input from MAF sensor	Displays MAF
MAF	V	MAF sensor voltage	Ignition switched ON (engine off) (MAF: 0.59 g/s {0.078 lb/min}) Approx. 0.72 V Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}) Approx. 0.97 V Racing (engine speed is 2, 000 rpm) (MAF: 4.73 g/s {0.626 lb/min}) Approx. 1.26 V
LOAD	%	Ratio of actual amount of intake air to the maximum air charging amount (mass volume) of cylinder	Idle (after warm up) Approx. 22.35% Racing (engine speed is 2, 000 rpm) Approx. 17.25% Racing (engine speed is 4, 000 rpm) Approx. 19.21%
TP_REL	%	Throttle valve opening angle (relative value) with value at throttle valve fully close timing as the start point	Accelerator pedal released: Approx. 12% Accelerator pedal fully depressed: Approx. 82%

If simulation function of M-MDS is not used:

Start the engine.
Remove the plug hole plate. (Refer to PLUG HOLE PLATE REMOVAL/INSTALLATION .)
Disconnect the vacuum hose between the purge solenoid valve and the charcoal canister.
Put a finger to the purge solenoid valve and verify that there is no vacuum applied when the engine is cold.
- If there is a vacuum, inspect the following:
  - Wiring harness and connectors (Purge solenoid valve-PCM terminal 1AI)
  - Purge solenoid valve (Refer to PURGE SOLENOID VALVE INSPECTION .)
Set the vehicle on a dynamometer or chassis roller.
WARNING:
- When the dynamometer or chassis roller is operating, there is a possibility that the operator may come into contact with or be caught up in the rotating parts, leading to serious injuries or death. When performing work while the dynamometer or chassis roller is operating, be careful not to contact or be caught up in any of the rotating parts.
Drive the vehicle at an engine speed to approx. 2000 rpm for 30 s or more.
Put a finger to the purge solenoid valve and verify that there is no vacuum applied during Step 3.
- If there is no vacuum, inspect the following:
  - Wiring harness and connector (Main relay-Purge solenoid valve-PCM terminal 1AI)
  - Purge solenoid valve (Refer to PURGE SOLENOID VALVE INSPECTION .)
- If there is vacuum, inspect the following:
  - Vacuum hose (Purge solenoid valve-Charcoal canister)