Fuel Pressure Solenoid Circuit Plausibility

Test 1 - 3:

Test 4 - 6:

Test 7 - 8:

SYMPTOM
P1190-FUEL PRESSURE SOLENOID CIRCUIT PLAUSIBILITY

TEST NOTE
This symptom is diagnosed using the test P1190-FUEL PRESSURE SOLENOID CIRCUIT OPEN CIRCUIT.

WHEN MONITORED
When the ignition is turned off.

SET CONDITION
The ECM detects engine speed does not fall below 650 RPM within 1.5 second after ignition off.

POSSIBLE CAUSES
- Checking the engine control relay system
- Intermittent condition
- Fuel pressure solenoid control shorted to voltage
- Fuel pressure solenoid control circuit shorted to ground
- Fuel pressure solenoid control circuit open
- Fuel pressure solenoid
- Engine control module