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:

Auto Dimming Mirror
Purpose The automatic glare prevention rearview mirror prevents the driver from being affected by light from vehicles at the rear. Structural view System wiring diagram Function The automatic glare prevention rearview mirror detects the level of the surrounding li ...

Oil Seal (Differential) Replacement [C66 M R]
1. Remove the front under cover No.2.. 2. Drain the manual transaxle oil.. 3. Disconnect the drive shaft (LH) from the MTX.. 4. Disconnect the drive shaft (RH) from the MTX.. 5. Remove the oil seal (LH). 6. Remove the oil seal (RH). 7. Using the SSTs and a hammer, tap a new oil s ...

Front Sash Molding Installation
WARNING: Using a utility knife with bare hands can cause injury. Always wear gloves when using a utility knife. NOTE: Double-sided adhesive tape has already been attached to the new front sash molding. 1. When installing a new front sash molding, follow the procedur ...