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:

Tcs Off Switch, Tcs Off Indicator Light
Purpose/Function The TCS OFF switch, located on the dashboard, allows for optionally enabling/disabling the TCS control at driver discretion. The TCS OFF indicator light, built into the instrument cluster, informs the driver that TCS control has been disabled by operation ...

Climate Control Unit [Manual Air Conditioner]
Purpose The climate control unit performs air conditioning according to the operation by the users and the driving conditions of the vehicle. Function The climate control unit determines optimum air-conditioning based on the input signals from each sensor and the control mo ...

Rear Side Frame Removal [Panel Replacement]
Symbol Mark Removal Procedure NOTE: When drilling the 35 locations indicated by (A) and 4 locations indicated by (C) shown in the figure, do not drill a hole all the way through or there could be a problem when installing the new part. 1. Drill the 35 locations indicated by ...