130AI--01
A98537
SST
(Turbocharger Pressure Gauge)
3--way
A98538
Voltmeter
--
INTAKE
TURBOCHARGER SYSTEM (1ND--TV)
13--3
COROLLA Supplement (RM1129E)
ON--VEHICLE INSPECTION
1.
INSPECT INTAKE AIR SYSTEM
(a)
Check for leakage and clogging between the air cleaner housing and turbocharger inlet and between
the turbocharger outlet and cylinder head.
Condition
Operation
Clogged air cleaner
Clean or replace element
Collapsed or deformed hoses
Repair or replace
Leakage from connections
Check each connection and repair
Cracked in components
Check and replace
2.
INSPECT EXHAUST SYSTEM
(a)
Check for leakage or clogging between the cylinder head and turbocharger inlet and between the
turbocharger outlet and exhaust pipe.
Condition
Operation
Deformed components
Repair or replace
Foreign objects in passages
Remove
Leakage from components
Repair or replace
Cracked in components
Check and replace
3.
CHECK TURBOCHARGING PRESSURE
(a)
Warm up the engine.
(b)
Using a 3--way connector, connect SST (turbocharger
pressure gauge) to the hose leading to the intake air con-
nector.
(c)
While depressing the clutch pedal, press the accelerator
pedal down fully. Measure the turbocharging pressure at
the maximum speed (5,100 to 5,250 rpm).
Standard:
15 to 45 kPa (0.15 to 0.46 kgf/cm
2
, 2.2 to 6.5 psi)
If the pressure is lower than the specified level, check both the
intake air and exhaust systems for leakage.
If there is no leakage, check whether the actuator hose is dis-
connected. If not, check the turbocharger.
If the pressure is greater than the specified level, check whether
the actuator hose is disconnected or cracked. If not, check the
turbocharger.
4.
INSPECT TURBO PRESSURE SENSOR
(a)
Check the voltage.
(1)
Disconnect the turbo pressure sensor connector.
(2)
Turn the ignition switch to ON.
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E
