Check injectors

Check injectors
.1. Check the quality of the injection nozzles.
Caution: Avoid sparks during the test. a) Prepare the necessary ser ¬ session length adaptation (see Fig.).
1 - fuel pressure regulator (remove from the vehicle), 2 - connection - adapter to the regulator, 3 - socket adapter to the nozzle, 4 - service ¬ ny hose, 5 - socket adapter to the fuel filter, b - a clip for fixing jets, 7 - injector, fuel filter 8.
b) Remove the bolt and remove the overflow inlet fuel hose from the fuel filter.
a)Connect the socket adapter (3) and the service hose (4) to yield ¬ Nome hole fuel filter ¬ pa (2) with bolts (5), ¬ navlivaemogo mouth along with the new pro ¬ clutches (6).
Torque. 29 Nm
Note: Use the fuel filter the car.
g) Disconnect the fuel pressure regulator (1) of the fuel collector ¬ p and connect the service pipe ¬ ny (2) with fitting adapter, (3), attaching it with 2 bolts to the regulator.
Tightening torque ... 9.3 Nm
Connect the hose back of fuel (4) to the regulator. Attention: Install new gaskets ¬ ki on the fuel pressure regulator.
d) Install a new fuse-state hub and new O-ring (1) on the nozzle (2).
e) Connect the nipple-transfer ¬ nick (3) and the service hose (4) to form ¬ sunke (2), attach the nozzle to release the power of ¬ (5).
g) Install the nozzle in the measuring cup. Put looked like Wi-Nilova hose (6) on the nozzle to avoid spraying fuel.
h) Connect the (-) wire to the negative ¬ positive (-) terminal of the battery.
i) Turn the ignition key. Caution: Do not start the engine.
k) Jumper jumper findings "PP" and "+ B" diagnostic connector, l) Connect the wire service with a nozzle and rechargeable bat-Reay for 15 seconds, measure the amount of injected fuel in a graduated vessel ¬ va. Repeat test 2-3 times for each injector.
The volume of injected fuel: 4A-0E without flow
Air 44 - 49 cm3 in 15 seconds.
4A-0E with flowmeter
Air .48 - 53 cm3 in 15 seconds.
4A-FE, 7A-PEu
5A-PE. 40 - 50 cm3 for 15 seconds.
The difference between the jets in the supply of up to 5 cm3
If the fuel supply is beyond the admissible limits, COMPATIBLES, replace the nozzle.
2. Check the drain.
a) At the end of the last of verification, disconnect the wires from the ba-tarei and check the leakage of fuel through the nozzle.
Leakage: Less than 1 drop in 1 minute.
b) Turn the ignition off, remove the jumper from the diagnostic connector, and disconnect the EMA (-) wire from the terminals of the battery-negatively ¬ Noah battery.
a) Remove the fittings, adapters and service pipes.
g) Connect the fuel hose to the outlet of the fuel filter, tightening the bolt bypass.
Tightening torque 29 Nm
3. Check with an oscilloscope. When the engine is idling, check waveform between terminals number 10, 20 and E01 electronic control unit.
The correct waveform is shown in the chart (the chart on the lower weight ¬ headquarters on the horizontal axis is increased 100-fold).
Install injector
Note: The sequence
the installation of nozzles and of quantity installed components are different for different motor ¬ researchers. In this regard, following the union ¬ Nena describe the installation of nozzles for the engines, which matches most of the operations.
(4A-OE (AE92 and AT160) 4A-FE (AE92G AE95, AT171 and AT180), 5A-FE (AE110), 4A-FE (AE111))
1. Install the injectors and the fuel reservoir.
a) Install the new seal-ing collar on the nozzle.
b) Apply a thin layer of fuel on a new gasket and installed it on novite nozzle.
c) Turn the nozzle, insert them into the fuel reservoir.
Attention, with the implementation of this pro ¬ cedures correctly orient the nozzle relative to the fuel reservoir, as shown in the figure.
1 - O-ring, 2 - pre ¬ analyzing systems and safety sleeve, 3 - forsun ¬ ka, 4 - fuel manifold.
d) Install four insulating sleeves and two (4A-FE and 5A-PE) or three (4D-ITS) spacers.
e) Set the nozzle with the fuel manifold to the intake manifold.
e) Make sure that the nozzles without over-rotated in edaniya Poza dochnyh bridges.
Note: If the nozzle does not pro-vorachivayutsya, the cause can be improper installation of ring seals. Replace O-rings.
g) Install the nozzle in such a way that the electrical connector, we were on top.
h) Secure the fuel manifold with two (4A-FE and 5A-PE) or three (4D-ITS) mounting bolts on the second ¬ deftly block.
Tightening torque:
4A-5A-PEu PE. 15 Nm
4A-OE 17 Nm
2. (4A-FE models 4 №) Set the modulator pressure system threads ¬ ¬ ha EGR call (see above).
3. Attach the inlet fuel hose to the fuel reservoir.
a) Install the overflow screw (with 2 new washers) and tighten ¬ filamentary it.
Tightening torque 29 Nm
6) (4A-GE)
Tighten the fixing bolt.
Tightening torque 7.4 Nm
A. Plug the receiver back of fuel to the fuel pressure regulator.
5. Plug for connector form-sunok.
6. (In 4A-0E with flow of air) Connect the hose absolute pressure sensor in the intake manifold.
7. (5A-FE, 4A-FE (AE111))
Connect the vacuum hose to re-gulyatoru fuel pressure.
8. (5A-FE, 4A-FE (AE111)) Connect the ventilation system hoses ¬ modulation crankcase.
Warning: connect a tone cue ¬ ventilation hose car ¬ tera so that the white mark on the hose was directed upward, toward the valve covers.
9. (In 5A-FE)
Connect the injector tube of the cold start the engine (see above).
10. Connect the (-) wire with negative terminal of the battery.
11. Check out the possible leakage of fuel through the connection (see above).
(7A-FE (AE93 and AE102) and 4A-FE (AT190 and AE101) (serial version and the version with the system of lean burn))
1. Install the injectors and the fuel reservoir.
a) Install a new fuse-negative sleeve on the nozzle.
b) Apply a thin layer of fuel on a new gasket and installed it on novite nozzle.
d) Install four prison and two (for the production version) or three (for the version with the combustion system of lean ¬) spacers.
d) Install the fuel injectors co-collector on the intake manifold. Gradually tighten the two screws fixing the fuel collec-tor to the intake manifold.
e) Make sure that the nozzles without over-rotated in edaniya posadoch-GOVERNMENTAL places.
Note: If the nozzle does not rachivayutsya conduction, the reason may be explosion-lyatsya incorrect installation of the ring tsevyh seals. Replace the ring ¬ high compaction.
g) Install the nozzle in such a way that the electrical connector ¬ we were on top.
h) Secure the fuel manifold with two (production version) or a triangle ¬ name (optional with the system of lean burn) mounting bolts to the cylinder head.
Tightening torque:
For the serial version of the 15 Nm
For the option of a system of lean burn 9.3 Nm
2. Plug for connector form-sunok.
4. Connect the hose back top ¬ Lebanon to the fuel pressure regulator.
3. Attach the inlet fuel hose to the fuel manifold, mouth-noviv bypass bolt with 2 nova ¬ E gaskets and tighten it. Torque. 29 nm
5. (Just for the serial version of the engine)
Install cover the top of the intake manifold. Install a new gasket and on ¬ power wrench with a head on 6 mm tighten the 3 bolts and 2 nuts in the sequence indicated in the figure.
Torque. 19 nm
6. Connect the hose system of veins, tilyatsii crankcase vacuum hose.
V
> W
a) Put a new gasket on top of the inlet flange of the collector so that the protrusion on the strip was turned down.
b) Attach the rack top of the intake manifold and transported the gauge hook (arm) motor-Chairman bolt and nut.
Torque. 28 Nm
Caution: Use a new bolt and new nut.
a) Connect the air tube and air inlet fuel hose bolt (or 2 bolts). 9. (Just for the serial version of the engine)
Install the throttle body for-slonki,
a) Install a new gasket on top of the intake manifold, redirect it down the tab.
b) Attach the throttle body with 2 bolts and 2 rad ¬ kami of the sequence shown in Figure ¬ Noah.
Torque. 22 Nm
a) Connect to the shell-Drosia selnoy damper
• vacuum hose;
• bypass coolant hoses;
• air hose.
g) Connect the following connectors throttle body:
• plug the throttle position sensor;
• plug valve system control ¬ leniya speed holo ¬ stack of turn.
10. (Except for models with the left located ¬ zheniem steering control for vari ¬ anta depleted composition of the mixture) Connect the accelerator cable to the throttle body. 1 1. (For models with automatic transmission with a serial version of the engine) Connect the throttle cable over-slonki to the throttle body.
12. Install the air cleaner hose.
13. Fill cooling system with coolant.
14. Connect the (-) wire with negative terminal of the battery.
Mass air flow sensor
Only for motor 4A-OE with divergence ¬ domerom air.
Checking the engine
Check the electrical resistance of the air flow.
a) Disconnect the connector from the cost-measure of the air.
b) Using an ohmmeter, measure the resistance between the corre-mi-pin connector air flow.
Scheme of the air flow meter. 1 - from the air filter, 2 - air temperature sensor, 3 - return of spring-Naja, 4 - damping chamber, 5 - potentiometer, 6 - demp firuyuschaya-plate, 7 - to the top of the intake manifold, 8 - ne ¬ repusknoy channel 9 - measuring plate, 10 - meter flange of the air filter, 11 - flange flowmeter hand ¬ HN upper intake count ¬ lector.
Conclusions Resistance Temperature
• C
U5-E2 20-3000 ohms -
US-E2 100-300 ohms -
UB-E2 200-400 ohms -
TNA-E2 10-20 ohms -20
7.4 kOhm 0
2.3 kohm 20
0,9-1.3 40 kOhm
0.4-0.7-ohm 60
Infinity RS-E1 -

If the resistance value of the outputs ¬ DIT beyond the given value ¬ Nij, replace the air flow. a) Connect the air flow meter.
Removal of the air flow meter
1. Disconnect the electrical connector air flow.
2. Disconnect the air cleaner hose.
3. Remove the electropneumatic system threads increase the speed of idling.
4. Remove the air-mass, pre-wring fixing plate and removing the 4 nuts