CAUTION
- Prior to starting work, pay special attention to the following: Always wear work clothes, a safety cap, protective shoes. Additionally, wear a helmet, protective goggles, etc. if necessary. Protect the vehicle using a seat cover, fender cover, etc. Prepare the service tools, clean cloth, containers to catch grease and oil, etc.
- Place "NO OPEN FLAMES" signs near the working area.
- Prepare a container and cloth to prevent scattering of fuels when performing work where fuels can be spilled. If the oil spills, wipe it off immediately to prevent from penetrating into floor or flowing out for environmental protection.
- Vehicle components are extremely hot immediately after driving. Be wary of receiving burns from heated parts.
- When performing a repair, identify the cause of trouble and avoid unnecessary removal, disassembly and replacement.
- Before disconnecting connectors of sensors or units, be sure to disconnect the ground cable from battery.
- Always use the jack-up point when the shop jacks or rigid racks are used to support the vehicle.
- Remove contamination including dirt and corrosion before removal, installation, disassembly or assembly.
- Keep the removed parts in order and protect them from dust and dirt.
- All removed parts, if to be reused, should be reinstalled in the original positions with attention to the correct directions, etc.
- Bolts, nuts and washers should be replaced with new parts as required.
- Follow all government and local regulations concerning disposal of refuse when disposing fuel.
GENERAL TOOL
| TOOL NAME | REMARKS |
| Circuit tester | Used for measuring resistance and voltage. |
| Oscilloscope | Used for inspecting the waveform of each sensor. |
Scheme 195
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Scheme 199
- Disconnect the ground cable from battery.
- Lift up the vehicle.
- Remove the under cover. < Refer to «REMOVAL»(ref-560372-S42274069342013061300000) , Front Under Cover. >
- Drain approximately 3.0 L (3.2 US qt, 2.6 Imp qt) of coolant. < Refer to «DRAINING OF ENGINE COOLANT»(ref-560359-S12749968242013061300000) , REPLACEMENT, Engine Coolant. >
- Remove the clip (A) from the air intake boot.
- Loosen the clamp (B) connecting the air intake boot and air cleaner case (rear).
- Loosen the clamp (C) which connects the air intake boot and throttle body.
- Remove the air intake boot from the throttle body, and move it to the left side wheel apron.
- Disconnect the connectors (A) from the throttle position sensor.
- Disconnect the preheater hose (B) from the throttle body.
- Remove the throttle body from the intake manifold.
THROTTLE SENSOR (METHOD WITH SUBARU SELECT MONITOR)
- Turn the ignition switch to ON. (engine OFF)
- Read the throttle opening angle signal and voltage of throttle sensor using Subaru Select Monitor. < Refer to «READ CURRENT DATA FOR ENGINE (NORMAL MODE)»(ref-560373-S14668176562013061300000) , OPERATION, Subaru Select Monitor. > Throttle sensor Throttle opening angle signal Standard Main 0.0% Approx. 0.6 V 100.0% Approx. 4.0 V Sub 0.0% Approx. 1.5 V 100.0% Approx. 4.2 V
CRANKSHAFT POSITION SENSOR (METHOD WITH CIRCUIT TESTER)
Measure the resistance between crankshaft position sensor terminals.
| Terminal No. | Standard |
| 1 and 2 | 2.04±0.204 kohms |
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Scheme 201
- Prepare an oscilloscope.
- Remove the back panel - pocket. < Refer to «REMOVAL»(ref-560372-S02115546132013061300000) , Glove Box. >
- Connect the probe to ECM connector. Terminal No. Probe 17 + 25
- Start the engine and let it idle.
- Check the pattern is the same as the waveform and voltage shown below.
- After inspection, install the related parts in the reverse order of removal.
CHECK THE INTAKE AIR TEMPERATURE SENSOR UNIT
Measure the resistance between intake air temperature sensor terminals.
Scheme 202
Scheme 202: CHECK THE INTAKE AIR TEMPERATURE SENSOR UNIT
| Temperature | Terminal No. | Standard |
| 20°C (-4°F) | 1 and 2 | 16.0±2.4 kohms |
| 20°C (68°F) | 2.45±0.24 kohms |
| 60°C (140°F) | 0.58±0.087 kohms |
RELEASING OF FUEL PRESSURE
| WARNING | Place "NO OPEN FLAMES" signs near the working area. |
| CAUTION | Be careful not to spill fuel. |
Scheme 203
- Remove the fuse of fuel pump from main fuse box.
- Start the engine and run it until it stalls.
- After the engine stalls, crank it for five more seconds.
- Turn the ignition switch to OFF.
- Install the fuse of fuel pump to the main fuse box.
INSTALLING THE EVAPORATION LINE QUICK CONNECTOR
| CAUTION | Check that there is no damage or dust on the quick connector. If necessary, clean the seal surface of the pipe. Make sure that the quick connector is securely connected. |
Note. Connect the quick connector as shown in the figure.
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Scheme 205
Scheme 205: CONNECTING THE FUEL LINE QUICK CONNECTOR
EVAPORATION HOSE CONNECTION
Connect the evaporation hose by inserting it to the pipe until the hose reaches the spool or bump.
Note. If there is no spool nor bump, connect the evaporation hose by inserting it at 28 mm (1.1 in) to the pipe.
Scheme 206
Scheme 206: EVAPORATION HOSE CONNECTION