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:

Push Button Start Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the meter hood.. 3. While pressing the push button start tab in the direction of the arrow (1) shown in the figure, push out the push button start in the direction of the arrow (2) shown in the figure to detach the push button start tab fr ...

Oil Seal (Side Gear) Replacement
1. Remove the drain plug and the drain differential oil into a container. 2. Install a new washer and the drain plug, and tighten. 3. Remove the rear drive shaft.. 4. Remove the clip from the drive shaft. CAUTION: Wrap the end of a screwdriver with cloth to prevent scratches to the i ...

Master Cylinder Removal/Installation
1. Remove the battery.. 2. Remove in the order indicated in the table. 3. Install in the reverse order of removal. 4. After installation, add brake fluid, bleed the air, and inspect for fluid leakage.. 1 Brake fluid level sensor connector 2 ...