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:

Starter Interlock Switch [Skyactiv G 2.0]
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Automatic Transaxle Fluid (ATF) Replacement [Fw6 A EL, Fw6 Ax EL]
WARNING: Do not perform the servicing while the ATF is hot. Otherwise, it could cause severe burns or serious injury. 1. Remove the front under cover No.2.. 2. Remove the dipstick securing bolt. 3. Remove the dipstick. 4. Remove the drain plug and washer, and drain the ATF ...

Location of the Tire Label (Placard)
You will find the tire label containing tire inflation pressure by tire size and other important information on the driver's side B-pillar or on the edge of the driver's door frame. SAMPLE Recommended Tire Inflation Pressure On the tire label you will find the recommended tire infla ...