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:

Washer Motor Removal/Installation
1. Disconnect the negative battery cable.. 2. Set the front over fender aside.. 3. Set the mudguard (RH) aside.. 4. Remove the front bumper.. 5. Disconnect the washer motor connector from the washer motor. 6. Disconnect the windshield washer hose from the washer motor. 7. Disconnect the ...

A/C Compressor
Purpose The A/C compressor circulates the refrigerant in the refrigerant cycle. The A/C compressor compresses the gaseous refrigerant atomized by the evaporator, and by pressurizing the gaseous refrigerant, liquification by the condenser is facilitated. Function The ...

Antenna Feeder No.1 Inspection
With audio system 1. Disconnect the negative battery cable.. 2. Remove the following parts: a. A-pillar trim (RH). b. Decoration panel. c. Audio unit. 3. Disconnect antenna feeder No.2. 4. Verify that the continuity between antenna feeder No.1 terminals is as indicated in the tabl ...