Related PIDs

Item (definition)	Unit/Condition	Definition	Condition/Specification (Reference)
FUELPW	Sec	Fuel injector duration	Idle (after warm up): Approx. 1.26 ms Racing (engine speed is 2, 000 rpm): Approx. 1.2 ms Racing (engine speed is 4, 000 rpm): Approx. 1.1 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. (See PCM INSPECTION .)
- If not as specified, inspect the following:
  - ECT sensor and related wiring harness (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION .)