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Check, adjustment and replacement of elements of the power system
Adjusting the throttle position sensor (TP) Engines DOHC
| Fig. 2.142. Connecting device Hi-Scan the diagnostic socket
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Connect the device to the Hi-Scan diagnostic connector (Fig. 2.142). In the absence of Hi-Scan device, connect a digital voltmeter to terminals 1 "and" 3 "connector. Turn on the ignition and, without starting the engine, check whether the output voltage of the throttle position sensor required value. If a device Hi-Scan, click ?��14 code and read the voltage. Nominal output voltage - 300-900 mV. If the voltage is different from the nominal, loosen the screws that secure the sensor and turn the sensor to adjust the output voltage.
WARNINGS By turning the probe clockwise output voltage increases. After the adjustment, securely tighten the screws. |
Switch off the ignition. Engines V6 2,7 liter
A WARNING Before adjusting the throttle position sensor, perform the basic adjustment of the engine speed of the engine idling. |
Disconnect the connector from the throttle position sensor. Jumper wire, connect a voltmeter to terminals "1" (connection with "weight") and "2" (idle switch) connector throttle position sensor.
| Fig. 2.143. Installing the probe thickness of 0.65 mm between the screw adjusting the speed of the crankshaft of the engine idling and the throttle lever
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Insert a feeler gauge thickness of 0.65 mm between the screw adjusting the speed of the crankshaft of the engine idling and the throttle lever (Fig. 2.143). Loosen the bolts throttle position sensor and turn the sensor body clockwise. In this position, check to see if the conductivity between contacts "1" and "2". Slowly turn the throttle position sensor clockwise until you find the point at which disappears conductivity between contacts "1" and "2", and tighten the screws that secure the sensor. Connect the throttle position sensor. Connect the scanner to the diagnostic socket. In the absence of the scanner, connect a voltmeter to terminals "1" (connection with "weight") and "3" (sensor output) connector throttle position sensor.
WARNINGS Do not disconnect the connector from the throttle position sensor. To obtain accurate data, use a digital voltmeter. |
Turn on the ignition.
A WARNING Do not start the engine. |
Check the output voltage of the throttle position sensor. It should be 250-800 mV. If the voltage is not correct, check the throttle position sensor and related harnesses. Remove the feeler gauge. Switch off the ignition.
Replacing fuel level sensor Remove the filler cap of the fuel tank to reduce the internal pressure in the fuel tank.
| Fig. 2.144. Place disconnection from the power of the fuel pump connector tube and fuel supply and return
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Open the tailgate, disconnect the unit from the fuel pump connector from the fuel pump and delivery tube and fuel return (Fig. 2.144). Remove the screws and remove the fuel pump assembly from the fuel tank. Remove the fuel level sensor from the fuel pump assembly. Check the fuel level sensor and replace it if necessary. Verifying the fuel pump Switch off the ignition. Apply battery voltage to the fuel pump connector and make sure the pump is running. Clamp the hose to check whether the fuel pump creates a pressure.
A WARNING The fuel pump is located in the fuel tank, so the sound coming from them at work, it is difficult to hear without removing the cover from the fuel filler. |
Check solenoid valve cleaning canisters When checking the coolant temperature should be 80-95 ?� C. Disconnect the vacuum hose from the solenoid treatment with activated charcoal canister and connect it to a vacuum pump. Start up the engine and check that after increasing the speed of the crankshaft of the engine vacuum remained at a constant level.
A WARNING If depression is absent, perhaps, the channel of the throttle assembly is dirty and needs cleaning. |
Checking fuel pressure Reduce the pressure in the fuel system as follows. Open the trunk and disconnect the harness connector from the fuel pump (see. Fig. 2.144). Start up the engine and let it run until the stop associated with the lack of fuel in the injection line. After this, the pressure in the system drops. Switch off the ignition. Disconnect the negative battery terminal. Connect the fuel pump. Remove the bolt that connects the fuel line and the fuel supply pipe.
A WARNING To prevent the fuel spray caused by the pressure of residual fuel in the fuel system, close the connection point with a clean cloth and gently disconnect the fuel line and the fuel supply pipe. |
| Fig. 2.145. Installing the adapter with pressure gauge between the fuel line and the fuel supply pipe
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Install the adapter with a pressure gauge between the fuel line and the fuel supply pipe (Fig. 2.145), tighten the bolts Adapter torque 25-35 Nm. Attach the wire to the negative terminal of the battery. Apply battery voltage to the pump connector and activate the fuel pump, and then, after the creation of pressure in the power supply, make sure that there are no fuel leaks. Start up the engine and believe his work at the maximum speed of the crankshaft. Disconnect the vacuum hose from the pressure regulator, and close the end of the hose. Measure the fuel pressure at idle. It should be 320-340 kPa. Measure the fuel pressure after the connection of the vacuum hose to the pressure regulator. Fuel pressure - 255 kPa. If the result of measurement of fuel pressure is not correct, determine a possible cause and make appropriate repairs. Violations of the fuel pressure in the fuel system, their causes and solutions are listed in Table. 2.25. Stop the engine and after 5 minutes, check the pressure in the supply system. If the pressure drops, check the speed of its decline. Causes of reduction of fuel pressure and methods for their removal are given in the Table. 2.26. Reduce the pressure in the fuel line. Disconnect the hose and pressure gauge.
Table 2.25 Violations of the fuel pressure in the fuel system, their causes and remedies
Table 2.26 Violations of the fuel pressure in the fuel system, their causes and remedies
A WARNING To prevent the fuel spray caused by the pressure of residual fuel in the fuel system, close the connection point of a clean cloth and gently disconnect the fuel line and the fuel supply pipe. |
Replace the O-ring at the end of the hose. Connect the fuel hose to the fuel delivery pipe. Check for fuel leaks.
Check the vacuum canister purge valve V6 engine When checking the coolant temperature should be 80-95 ?� C. Disconnect the vacuum hose from the canister purge valve throttle unit and connect it to a vacuum gauge. Start up the engine and check that after increasing the speed of the crankshaft of the engine vacuum is constant.
A WARNING If there is no vacuum may channel throttle knot dirty and must be cleaned. |
Replacement of the fuel filter Reduce the pressure in the fuel system as follows. Open the trunk and disconnect the harness connector from the fuel pump (see. Fig. 2.144). Start up the engine and let it run until it stops, coupled with the lack of fuel in the injection line. After this, the pressure in the system drops. Switch off the ignition. Disconnect the negative battery terminal. Connect the fuel pump. Remove the two nuts and disconnect the hoses from the fuel filter.
| Fig. 2.146. Location of the fuel filter
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Remove the bolts and remove the fuel filter from the bracket (Fig. 2.146). Tightening torque - 25-35 Nm.
Purification of the throttle device
A WARNING Disconnect the air intake hose from throttle assembly and check the surface of the throttle valve assembly in the absence of soot. To remove carbon deposits, use an aerosol solvent. |
Let the engine warm up to operating temperature and switch it off. Disconnect the air intake hose from the throttle assembly. Place the cover on the air intake bypass throttle.
A WARNING Make sure that the solvent does not hit the air supply passage bypassing the throttle valve. |
Spray the spray solvent through the inlet throttle knot and wait for 5 minutes to soak it. Start up the engine a few times, increase the speed of the crankshaft, and then leave the engine idling. How much time repeat these steps. Remove the cap that covers the air intake bypass throttle. Replace the air intake hose. Disconnect 10 with a wire from the negative terminal of the battery. Screw to adjust the engine speed to idle.
The accelerator cable Withdrawal
| Fig. 2.147. Cable and accelerator pedal cars with engines DOHC: 1 - the adjusting screw; 2 - the tip of the accelerator cable from the throttle assembly; 3 - insert; 4 - the tip of the accelerator cable from the accelerator pedal; 5 - the accelerator lever; 6 - the accelerator pedal; 7 - a returnable spring; 8 - a bolt, 8-12 Nm; 9 - pin; 10 - an arm of the accelerator pedal
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Remove the tip of a cable of an accelerator and the inner cable from the accelerator pedal (Fig. 2.147).
| Fig. 2.148. The direction of removal of the accelerator pedal
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Pull the left side of the accelerator pedal to yourself and then lift the pedal to the accelerator lever (Fig. 2.148).
| Fig. 2.149. Arrangement of bolts of fastening of an arm of the accelerator pedal
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Remove the bracket bolts of the accelerator pedal, and remove the bracket (Fig. 2.149). Check Check the accelerator cable and cable housing damage. Check for smooth movement of the accelerator cable in the shell. Check the accelerator lever in the absence of deformation. Check the return spring for damage. Check the condition of the tip of the accelerator cable. Check operation of the accelerator cable. Setting When you install the return spring and the accelerator lever grease multipurpose grease all the contact arm of the accelerator. Apply sealant to the mounting hole for the bolt and tighten the bracket bolts accelerator lever torque 8-12 Nm.
| Fig. 2.150. Fixing the tip (2) Cable (1) to the accelerator lever (4) and place the accelerator (3) lubrication
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Fit the accelerator cable end at the end of the accelerator lever (Fig. 2.150).
Sprayers Withdrawal Reduce the pressure in the fuel line.
A WARNING To prevent the fuel spray caused by the pressure of residual fuel in the fuel system, close the connection point of a clean cloth and gently disconnect the fuel line and the fuel supply pipe. |
| Fig. 2.68. Intake manifold and expansion airbag 1 - insulator; 2 - fuel line; 3 - a bolt, 10 Nm 13; 4 - a pressure regulator; 5 - fuel injector; 6 - a lining; 7 - expansion air chamber; 8 - Sensors MAP and IAT; 9 - the inlet manifold; 10 - throttle device; 11 - the valve control system idle speed; 12 - the switch; 13 - Bolt, 10-12 Nm; 14 - bolt 15 to 22 N ?� m
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| Fig. 2.91. Intake manifold and expansion airbag: 1 - a bolt, 8-12 Nm; 2, 11 - bolts 15-20 Nm; 3 - expansion air chamber; 4 - a pressure regulator; 5 - fuel line; 6 - a fuel injector; 7 - Bolt, 19-21 Nm; 8 - the inlet manifold; 9, 10 - joints; 12 - an arm of the expansion chamber
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Remove the injection pipe with fuel injectors and the fuel pressure regulator (see. Fig. 2.68, 2.91).
Setting
| Fig. 2.151. Sleeve arrangement (1) and the sealing ring (2) on the fuel injector
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Lubricate the fuel injector O-rings or spindle oil. Turn the fuel injector in one direction and then the other, set to
| Fig. 2.152. The direction of rotation of the fuel injector during installation: 1 - the plug; 2 - the injection line; 3 - O-ring; 4 - fuel injector
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A WARNING If the fuel injector does not turn smoothly, the O-ring may collapse. In this case, remove the nozzle and re-install it. |
Fuel pipes and hoses Withdrawal
| Fig. 2.153. Location valve fuel supply system, fuel pipes and hoses: 1 - filling vent valve; 2 - the restrictive four-way valve; 3 - way valve; 4 - Fuel valve overlap
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Location valve fuel supply system, fuel lines and hoses are shown in Fig. 2.153. Lift the car and remove the two union nuts hoses to the fuel filter.
A WARNING To prevent the fuel spray caused by the pressure of residual fuel in the fuel system, cover the separation of the power supply system with a clean cloth and gently disconnect the fuel line and the fuel supply pipe. |
| Fig. 2.154. Location of the fuel filter
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Remove the mounting brackets and remove the fuel filter from the bracket (Fig. 2.154). Remove the hose and the fuel supply line. Remove the hose and line system EVAP. Check Check the hoses and pipes for cracks, bend, deformation and clogging. Check canister EVAP the absence of obstructions. Check the fuel filter for blockage or damage. Setting Install hose EVAP and a hose of return of fuel in view of the following:
| Fig. 2.155. Connecting the fuel pipe and the fuel hose a - tube flange; b - tube without flange
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- If the handset has a shoulder, slide it to the hose collar as shown in Fig. 2.155; - If there is no collar on the tube, slide the hose on it to secure its fastening. Install the fuel filter bracket and secure the fuel filter. Tighten the two union nuts hoses to the fuel filter torque 30-40 Nm. Install clamps and check that the pipes and hoses are not in contact with other nodes.
Fuel tank Withdrawal
| Fig. 2.156. Fuel tank: 1 - filling vent valve; 2 - the valve overlap of the fuel supply; 3 - the gauge of level of fuel; 4 - electric fuel pump; 5 - tape fastening the fuel tank
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The fuel tank and its fastening elements are shown in Fig. 2.156. Reduce the pressure in the fuel system as follows. Open the trunk and disconnect the harness connector from the fuel pump (see. Fig. 2.144). Start up the engine and let it run until it stops, coupled with the lack of fuel in the injection line. After this, the pressure in the supply drop. Switch off the ignition.
A WARNING To prevent the fuel spray caused by the pressure of residual fuel in the fuel system, close the connection point of a clean cloth and gently disconnect the fuel line and the fuel supply pipe. |
Disconnect the negative battery terminal. Remove the fuel filler.
| Fig. 2.157. Arrangement of a stopper (1) draining the fuel from the fuel tank
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Remove the fuel drain plug and drain the fuel from the fuel tank (Fig. 2.157). Disconnect the hose from the fuel tank and the fuel return hose EVAP. Disconnect the connector from the fuel level sensor. Disconnect the high pressure hose from the fuel tank. Support the fuel tank, remove the two self-locking nuts and remove the tape fixing the fuel tank. Disconnect the water supply hose and a hose leveling. Remove the hose vapor recovery system and fuel tank. Check Check the hoses and pipes for cracks or damage. Check the operation of fuel filler cap of the fuel tank. Check the tank for deformation, corrosion and cracks. Check the inner surface of the fuel tank for contamination and blockages. Check the internal fuel filter for clogging or damage. Check that the two-way valve.
| Fig. 2.158. Using a vacuum pump to check the two-way valve: a - the inlet side; b - outlet side
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| Fig. 2.159. ???????????�???????�?????� ???�?�????????: ?� ??� ???�?�???? ???�?????�???????????? ???????????? ???? ???�?????????� ?�?????�???????????? ?�?�???�; b ??� ???�?�???? ???????�?????????�; ?? ??� ???�?�???? ???????�?????????� ???? ???�?????????� ?�?????�???????????? ?�?�???�
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???????????�?????????�?� ???�?�???? ???�?????�???????????? ???????????? ?? ???????�?????????� ?�?????�???????????? ?�?�???�, ???�???????????? ?�???? ?????????�?????? ???� 40 ???? ( ??????. 2.159 ). ?????? ???????????�???????�?????? ???�?�?????� ???�?????�?????�?�?�?? ?????�?????????�?� ?�???? ???????�?� ?? ?�???�?�?� ?????????�?????? ???????????? ?�?????�????. Install the fuel tank and secure with tape. Connect the hose of the fuel vapor recovery system and the return hose. ???????????�?????�?� ???�?�???? ???????�?�?? ?�?????�?????�, ???�?? ???????�?�?�???? ???� ??????. 2.155 .
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