Mazda CX-5 Service & Repair Manual: Fuel Pressure Sensor

Mazda CX-5 Service & Repair Manual / Engine / Fuel / Fuel Pressure Sensor

Purpose/Function

Detects the fuel pressure in the fuel distributor as basic information for mainly determining the fuel injection amount.
Detects the fuel pressure in the fuel distributor and inputs it to the PCM as a fuel pressure signal.

Construction

Installed on the fuel distributor.
A metal diaphragm thin film distortion gauge has been adopted as the detecting element for detecting the fuel pressure.

Operation

Inputs the signal, which fluctuates according to the fuel pressure, to the PCM.

Fuel pressure sensor characteristic

Fail-safe


DTC No.	Fail-safe function
P0191:00	Stops the high pressure fuel pump control. Limits the intake air amount.
P0192:00	Stops the high pressure fuel pump control. Limits the intake air amount.
P0193:00	Stops the high pressure fuel pump control. Limits the intake air amount.

Fuel Pressure Sensor Inspection

Voltage Inspection NOTE: The fuel pressure sensor cannot be removed as a single unit. When replacing the fuel pressure sensor, replace it together with the fuel distributor as a single ...

Fuel Pump Relay

Purpose, Function Controls the fuel pump on/off according to control signals from the PCM. The fuel pump is operated only at engine start or when the engine is running to improve saf ...

Other materials:

Interior Equipment (View A)
1 Door-lock knob 2 TCS OFF switch 3 Tire pressure monitoring system set switch 4 Turn and lane-change signal 5 Lighting control 6 Instrument cluster 7 Dashboard illumination knob 8 Wiper and washer lever 9 Push button start 10 AFS OFF switch 11 BSM OFF switch 12 Outside mirror ...

Shift Solenoid No.3 [Fw6 A EL, Fw6 Ax EL]
Purpose/Function Shift solenoid No.3 adjusts the hydraulic pressure in the R-3-5 brake circuit based on the current demand from the TCM according to the vehicle conditions. Construction Shift solenoid No.3 is installed to the solenoid control valve body. Shift solenoid ...

Cruise Main Indicator Light (Amber)
Purpose/Function Illuminates while the cruise control system is in standby mode to inform the driver that the cruise control system is on standby. Construction Built into the instrument cluster. Operation Illuminates while the cruise control system is on sta ...