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Power supply system check
If any signs of infringement of serviceability of functioning of the fuel injection system, first check the reliability of a tightening of all compression fittings tract supply system. Make sure that the reason is not a violation of a basic disregard for the implementation of procedures for regular maintenance - visually assess the condition of the air cleaner and the fuel filter, a measurement of working backlashes of valves, the compression pressure in the cylinders, etc. Make sure the hose cross-crankcase ventilation (PCV). If after the above checks reveal the cause of the violation is not possible, drive away the car to the service station for Bole detailed diagnosis - in the left rear corner of the engine compartment is equipped with a protective cover the DLC to connect a special scanner, through which it reads fault codes (DTC) identified system-board self-diagnostics and stored in the memory of the processor control unit.  | Alternatively, read the DTC can be made using a special card equipped with a PC with installed software - to connect a computer to the DLC connector uses a special cable. By reading the code can easily identify the operator even hidden faults. |
 | Remember that any unprofessional intervention into the engine management system carries a risk of irreversible failure of electronic components! |
Check idle speed Procedure test idle speed is given in Section Checking the idle speed of the Head Current leaving and service. If necessary, make an appropriate adjustment (see. Section Adjusting the idle speed). Check of serviceability of functioning of the sensor detector sediment of the fuel filter See. Section Checking the power supply system, replacement of the fuel filter in Chapter Current leaving and service. Checks pump Check setting the timing (injection timing) |  | - Turn the engine in the normal direction so that the label "11 ?� ATDC?� (11 ?� ATDC) on the crankshaft pulley is aligned with the reference pointer.
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- Disconnect the fuel injector from the injection pump.
 | - Remove the cap of the hydraulic pump head and install in its place a special dial gauge so that it rested against the plunger into the end of the plunger pump assembly.
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- Read the meter reading - the desired result is about 2.0 mm.
 | - Carefully turn the crankshaft pulley in a counterclockwise direction until you get the meter reading to stabilize (about 30 ÷ 35 degrees).
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- Zero meter and slightly rotating pulley side to side, make sure the stability of its zero reading in a small angular range.
 | - Turn the pulley in the direction of normal rotation (clockwise) until you get the initial combination of adjusting labels - with proper installation of the moment of injection of the meter shall record the reading 1 ?� 0.2 mm. If necessary, make an appropriate adjustment (see. Section Adjusting setting the timing (the injection moments)).
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Check the height of cam lobe camshaft adjustment device | - Carry out the timing.
- Rotate the crankshaft in the normal direction (clockwise) is considered the maximum reading of the dial gauge.
- If the result is less than 2.2 mm, replace the eccentric disk or the roller assembly.
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Check of serviceability of functioning of the shut-off valve (FCV) Power System | - The correct functioning of the system power supply shut-off valve (valve fuel cutoff) confirms the stability of turns of the engine running and dependability of its stop when disconnected from the valve wiring.
- If necessary, replace the components of the valve assembly.
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Checking the electronic controller (GE) and information gauges |  | - Disconnect the pump proper wiring.
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Sensors CSP and the fuel temperature | - Using an ohmmeter, check the distribution of resistances between the contact terminals of the connector. Compare results of measurements to the data table.
Map of the distribution of the contact resistance between the connector terminals of the electronic control fuel injection pump Terminals | Circuit | Resistance, Ohm | Temperature (?� C) | B-A | CSP sensors | 5.8 | 23 | P-A | CSP sensors | 11.6 | 23 | C-B | CSP sensors | 5.8 | 23 | I-H | The controller (GE) | 0.6 | 23 | E-F | The fuel temperature sensor | 1900-2100 | 23 |
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Regulator | - Measure the resistance between terminals H and I connector. If the result differs from the required value (0.6 ohms at 23 ?� C), make sure available conductivity between the controller and the terminal H terminal number 2 and number 15 ECM, as well as between terminals I regulator and terminal number 1 and number 14 ECM. If the conductivity occurs, replace controller, otherwise perform the refurbishment of the corresponding wiring.
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Check of the valve controlling the distribution of the moments of injection (TCV) |  | - Disconnect the fuel pump wiring TCV and using an ohmmeter, measure the resistance between terminals K and L pin. If the result differs from the required value (11 ?� 1.1 ohms at 20 ?� C), make sure there is continuity between terminal R and terminal number 13 ECM. If the conductivity is the case, replace the valve, otherwise perform the refurbishment of the corresponding wiring.
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Checking the position of a piston sensor (TPS) | - Disconnect the sensor wiring and check the distribution of resistances between the central and the signal terminals (A-C) and (A-B). The required value in both cases was 82 ?� 2 ohms at 25 ?� C. A negative test result, make sure available conductivity between the TPS connector terminals and corresponding terminals ECM (C-46, B-53 and A-52). In case of need make corresponding regenerative repair the wiring or replace the sensor.
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Check speed sensor pump (Np) | - Sensor connector Np is placed directly over the connector TPS. Measure the impedance between the signal terminals of the sensor (C) and its ground terminal (B). If the result is different from the desired value (1.62 ?� 0.16 ohms at 20 ?� C), make sure there is continuity between terminals B and C of the sensor and the terminal number 38 and number 30, respectively, the engine control module (ECM). If necessary, repair the wiring or replace the sensor.
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Check the compensation resistor assembly  | To verify that a compensation resistor. The desired results are tabulated. |
Check compensating resistor pump * Number | Resistance, Ohm | | 1 | 0.18 | | 2 | 0.30 | | 3 | 0.43 | | 4 | 0.62 | | 5 | 0.82 | | 6 | 1.10 | | 7 | 1.50 | | 8 | 2.00 | | 9 | 2.70 | | 10 | 3.90 | | eleven | 5.60 | | 12 | 8.20 | | 13 | 15.00 |
* Tolerance is ?� 5% Check the solenoid valve |  | - Check the resistance between the terminals of the solenoid valve. The required value of 8 ?� 1.2 ohms at 23 ?� C.
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 | - Make sure available conductivity between the body of the solenoid valve (-) and terminal with electronic control (GE).
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Check and adjust the accelerator pedal position sensor | - Start the engine and warm it up to normal operating temperature.
- Measure the voltage between terminals C and E of the sensor at idle and at full throttle. In the first case, the result of measurement should make 0.3 ÷ 1.1 V, the second: 3.68 ÷ 5.0 in.
- In case of need make corresponding updating, by disconnecting the wiring from the sensor probe and the blade type, measure the gap between the lever and the focus - the required value is 0.45 mm.
- A negative result of the last measurement, check the conductivity sensor - it should take place, otherwise release the clamping screw and make the appropriate adjustment.
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Checking injectors Check the starting pressure of the nozzle opening |  | - Connect the nozzle to a special tester.
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- Working pumping tester handle, remove the air from the nozzle.
 | - Slowly lowering the handle of the tester connected to read out the pump pressure gauge - reading should be at the start of the ejection of jets of fuel. If the measuring result differs from the desired value (150 kgf / cm 2), make the time adjustment of the start of injection by adjusting the shim (1), - a washer 27 are manufactured in the embodiments, the thickness range of 0.50 mm to 1.54 mm and a pitch 0.04 mm. Addition of 0.04 mm provides increased injection pressure of about 4.8 kgf / cm 2.
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Check of tightness of landing operation valve seat | - The audit also made a special tester.
 | - Create a nozzle pressure of 115 kgf / cm 2, and make sure there are no leaks through the nozzle. If necessary, disassemble the nozzle (see. Section Removal and installation of atomizers) for washing nozzles, or make a replacement.
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Checking the direction of injection and spraying diagrams | - Connect the nozzle to the tester and remove it from the air.
- Disable (Mute) gauge several times and dramatically lower the pump handle tester to visually determine the direction of the release and configuration of jet fuel is pushed through the injector nozzle.
| Lower the pump handle should be as fast as possible, - the injector should publish a characteristic whistling sound. |
 | - Fuel injector should be sprayed uniformly with a narrow opening angle and in a strictly coaxial nozzle axis.
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Check the turbocharger actuator |  | - Disconnect the turbocharger actuator on the air hose and connect a pump equipped with a pressure gauge.
Check of serviceability of functioning of the turbocharger actuator - rod (1) should move smoothly
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- Create a diaphragm actuator casing pressure of 760 ÷ 800 mm Hg. Art. and using a dial gauge plunger type (DTI) to measure the stroke actuator rod - the desired value is 1.5 mm. At negative result of check replace the actuator assembly.
| Submission to the actuator to excessive pressure can cause damage to the diaphragm fails! |
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Check the intercooler air pressurization (Intercooler) | - Visually inspect the intercooler heat exchanger, checking for cracks, deformation and other mechanical damage.
- Check the tightness of the heat exchanger, by submitting it to the pressurized air to 1 kg / cm 2.
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