Toyota Camry (XV70): On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. OPERATION CHECK
(a) Slide the clip and disconnect the union to check valve hose from the vacuum pump assembly.
| (b) Connect the hose of the vacuum gauge to the vacuum pump assembly. |
|
(c) Start the engine and warm it up for more than 2 minutes.
(d) With the engine idling, check the vacuum of the vacuum pump assembly.
Standard Pressure:
More than 86.7 kPa (650 mmHg, 25.6 in.Hg)
If the pressure is less than the standard, disassemble and inspect the vacuum pump. If necessary, replace the vacuum pump assembly.
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HINT:
Always perform this operation check procedure after replacing or servicing the vacuum pump assembly.
(e) Remove the vacuum gauge from the vacuum pump assembly.
(f) Connect the union to check valve hose to the vacuum pump assembly, and slide the clip to secure it.
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Removal
REMOVAL CAUTION / NOTICE / HINT
NOTICE: This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.
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Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE END COVER
(a) To prevent the coupling of the vacuum pump assembly from contacting the workbench, support the vacuum pump assembly with wooden blocks or an equival
Reassembly
REASSEMBLY PROCEDURE 1. CLEAN VACUUM PUMP HOUSING
(a) Clean the inside surface of the vacuum pump housing. 2. INSTALL VACUUM PUMP ROTOR
(a) Clean the vacuum pump rotor. (b) Apply engine oil to the
SEE MORE:
A/F (O2) Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 Circuit Current Above Threshold (P219519,P219524,P219618,P219623,P219719,P219724,P219818,P219823)
DESCRIPTION HINT: Although the DTC titles say oxygen sensor, these DTCs relate to the air fuel ratio sensor.
The air fuel ratio sensor generates voltage* that corresponds to the actual air fuel ratio. This sensor voltage is used to provide the ECM with feedback so that it can control the air fuel
Components
COMPONENTS ILLUSTRATION
*1 AIR CLEANER CAP WITH AIR CLEANER HOSE
*2 THROTTLE BODY GASKET
*3 THROTTLE BODY WITH MOTOR ASSEMBLY
*4 VACUUM HOSE
*5 NO. 1 FUEL VAPOR FEED HOSE
*6 NO. 2 VENTILATION HOSE
*7 NO. 2 WATER BY-PASS HOSE
*8
