Fuel system of gasoline engines Peugeot 207

The device of the fuel system of gasoline engines
Block diagram of the fuel system "Bosch MEV 17.4": 1 - throttle valve block; 2 - air intake distributor; 3 - electromagnetic valve for bleed of absorber; 4 - adsorber tank (activated carbon filter); 5 - pipeline for...

Fuel filter
The fuel filter is mounted on the pump and fuel level sensor housing and does not have a filter element. The filter is replaced together with the pump and sensor unit. Attention. After any work requiring opening the...

Fuel lift pump (low pressure)
The check valve, built into the fuel pump, in the filling circuit, maintains residual pressure in the engine supply circuit, due to which fuel is supplied to the fuel rail. The low pressure fuel pump is supplied with 12...

Pressure regulator
The fuel pressure in the fuel rail is regulated by a regulator. The pressure value is 3.5 bar.

Fuel injectors
The injectors allow you to dose the amount of fuel (manufacturer "Siemens VDO"). The injectors operate with each electrical pulse. The injectors are individually controlled in the injection sequence (1-3-4-2)...

Measuring fuel pressure
Caution: When connecting and disconnecting the pressure gauge, use a rag to protect the engine from possible fuel splashes. Remove the motor switching block (BSM). Relieve pressure in the fuel system: remove fuse F5...

Cleaning the fittings on the high-pressure fuel rail
Cleaning of repair areas (in zone "a"): pour the "Sodimac" degreaser into a suitable container; wet the brush in degreaser; clean the "a" points and at the same time remove any dirt particles with a vacuum cleaner. Dry...

Checking for leaks
Note: To check the tightness of the high-pressure fuel rail and injectors, it is necessary to remove the intake manifold. To check the tightness of the high-pressure fuel rail feed pipe, it is not necessary to remove...

Removal and installation fuel injectors
Removal Disconnect the negative battery terminal. Connect the pressure measuring hose to the bleed valve (1) of the fuel supply circuit. Drain the fuel into a suitable container. Release the wire harness (2) from the...

Replacing the high pressure sensor (EP6DT engines)
Remove the high pressure fuel rail. Disconnect the connector and remove the high pressure sensor (1). Install the parts in reverse order.

Replacing the fuel pump/fuel level sensor assembly
Caution: Use the Schrader pressure test and control valve to release pressure and drain the fuel circuit. Fold down the right rear seat cushion. Lift up the carpet. Remove the cover (3). Disconnect the fuel pipes (4)....

Replacing the high pressure fuel pump (EP6DT engines)
Place the car on a lift. Disconnect the battery. Caution: Use the Schrader pressure test and control valve to release pressure and drain the fuel circuit. Install plugs into the air cooler and turbocharger outlet...

Replacing the vacuum pump
Disconnect the battery. Remove the following parts: lid (1); air resonator (2); air pipe (3). Disconnect the fitting (in area "a"). Release the electrical harness (in areas "b" and "c"). Loosen bolts (4) and (5) and...

Removal and installation the fuel tank (all engines)
Removal Relieve the pressure in the fuel system (see chapter " Removal and installation fuel injectors "). Lift the rear right seat cushion. Lift the carpet. Remove the plug. Disconnect and move aside the connector in...

Adsorber in the fuel vapor recirculation system
The gasoline vapor adsorber is connected to the fuel tank. An activated carbon filter installed in it captures gasoline vapors and prevents them from entering the atmosphere (toxicity reduction system). The adsorber is...

Electromagnetic valve for bleeding the adsorber
The electromagnetic valve of the canister purge, controlled by the engine ECU, ensures the recirculation of gasoline vapors entering the canister. When the purge valve is energized, the electromagnetic coil pulls in the...

Fuel Vapor Recirculation System Sensors
Atmospheric pressure sensor The atmospheric pressure sensor allows the engine control unit to determine the density of the air entering the fuel injection system. The atmospheric pressure sensor is built into the engine...

Block diagram of the fuel vapor recirculation system
1 - fuel tank; 2 - adsorber; 3 - electromagnetic valve for bleeding the adsorber; 4 - Injection system ECU; 5 - throttle valve block.

Variable intake valve lift mode
Changing the lift of the intake valves allows you to change the amount of air supplied without affecting the throttle valve. This mode allows you to: reduce reaction time; reduce fuel consumption; reduce harmful...

Electric motor for opening valves
The valve lift motor changes the camshaft angle on command from the engine ECU, which allows the intake valve lift to be changed from minimum to maximum in 300 ms. Purpose of connector contacts: contact 1 - 12V power...

Intake valve position sensor
The intake valve position sensor informs the engine control unit about the angular intermediate position of the intake camshaft. Based on this information, the control unit determines the amount of intake valve lift,...

Throttle valve
A dual sensor built into the throttle body allows the engine control unit to determine the exact position of the throttle valve. Since the variable intake valve lift system does not require a throttle valve to control...

Replacing the adsorber
Disconnect the battery. Throttle valve operating modes: C - throttle valve rest position (contact open) or emergency mode position in case of malfunction; D - throttle position with ignition on or idle; E - throttle...

Replacing the solenoid valve for bleeding the adsorber
Disconnect the battery. Remove the protective shield under the engine. Disconnect: gasoline vapor collection tube (on the intake manifold) in zone "b"; gasoline vapor collection tube (on the electromagnetic valve of the...

Removal the intake manifold and throttle valve (EP3, EP6 engines)
Place the vehicle on a lift. Disconnect the battery. Caution: Install the plug on the intake manifold inlet. Loosen bolts (1) and (3). Remove the protective shield under the engine. Remove the air deflector (6) and...

Removal the intake manifold and throttle valve (EP6DT engines)
Place the car on a lift. Disconnect the battery. Remove the following parts: protective cover of the battery; battery; battery bracket; engine protection. Caution: On vehicles with EP6DT engines, reinstall the plugs at...

Removal the heat exchanger (cars with AL4 automatic transmission)
Disconnect the battery. Remove the front left fender liner. Remove the deflector (2) and resonator (3). Release the fuse box (1) from the clips. Remove the battery tray cover. Remove the battery. Disconnect the...

Exhaust system (diesel engine)
Identification Tightening method Exhaust pipe installation method Note: Observe the precautions that must be taken before carrying out the work. The front pipe must be protected from any external mechanical impacts and...

Exhaust system device (petrol engine)
Legend for the figure on the next page: "a" marking points of cutting zones of the exhaust system. "b" marking area: under the rear muffler. "c" marking zone: under the intermediate muffler. "d" marking zone: catalytic...

Removal and installation the exhaust pipe (petrol engine)
Note: This chapter describes the procedure for a gasoline engine, but the operations for a diesel engine are the same. Caution: The exhaust system must never be suspended without support by the flexible pipe. The...

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See similar information for other Peugeot models

➨ Power unit: Fuel system (diesel) Peugeot 106 (1991-2003)
➨ Power unit: Fuel system (gasoline) Peugeot 305 (1977-1989)
➨ Power unit: Fuel system (carburetor) Peugeot 405 (1987-1997)
➨ Power unit: Fuel system Peugeot 605 (1989-2000)
➨ Power unit: Power and exhaust (DW diesels) Peugeot Partner I (1996-2008)

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