TOYOTA CAMRY 1999 Service Repair Manual

TOYOTA CAMRY 1999 Service Repair Manual CAMRY 1999 TOYOTA TOYOTA https://www.carmanualsonline.info/img/14/57448/w960_57448-0.png TOYOTA CAMRY 1999 Service Repair Manual
Trending: instrument panel, fuel filter, coolant, wheel bolt torque, sport mode, parking brake, jacking

Page 3801 of 4592

TOYOTA CAMRY 1999  Service Repair Manual EVAP SYSTEM OPERATION INFORMATION ± EG005-01 April 27, 2001
Page 3 of 14
ORVR Operation
During refueling, low pressure above the
diaphragm in the onboard recovery valve
lifts allowing fuel vapors int

Page 3802 of 4592

TOYOTA CAMRY 1999  Service Repair Manual EVAP SYSTEM OPERATION INFORMATION ± EG005-01 April 27, 2001
Page 4 of 14
Vapor Purge Flow P0441
The EVAP monitor is designed to detect:
�Restricted vapor purge flow when the
purge VSV is open
�Inappr

Page 3803 of 4592

TOYOTA CAMRY 1999  Service Repair Manual EVAP SYSTEM OPERATION INFORMATION ± EG005-01 April 27, 2001
Page 5 of 14
Late Type (Intrusive EVAP System) (Except ECHO)
Onboard Recovery Valve
(Fill Check Valve)Vapor
Pressure
SensorVacuum
Check
Val

Page 3804 of 4592

TOYOTA CAMRY 1999  Service Repair Manual EVAP SYSTEM OPERATION INFORMATION ± EG005-01 April 27, 2001
Page 6 of 14
ECHO Late Type (Intrusive EVAP System)
The ECHO uses a Late Type EVAP System but is configured with some small
differences. Fo

Page 3805 of 4592

TOYOTA CAMRY 1999  Service Repair Manual EVAP SYSTEM OPERATION INFORMATION ± EG005-01 April 27, 2001
Page 7 of 14
ECHO Monitor Sequence
CCV Open
Purge
ClosedOpenClosed
Purge ClosedOpen Open
Cold Start ECT/IAT
Near Same TempNegative
Pressure

Page 3806 of 4592

TOYOTA CAMRY 1999  Service Repair Manual EVAP SYSTEM OPERATION INFORMATION ± EG005-01 April 27, 2001
Page 8 of 14
Purge VSV Operation ± P0441
At a predetermined point, the ECM closes
the CCV and opens the bypass VSV
causing vacuum to incre

Page 3807 of 4592

TOYOTA CAMRY 1999  Service Repair Manual EVAP SYSTEM OPERATION INFORMATION ± EG005-01 April 27, 2001
Page 9 of 14
Vent Control, CCV Operation P0446
This stage checks the CCV and vent (air
inlet side) operation. When the vapor
pressure rises

Page 3808 of 4592

TOYOTA CAMRY 1999  Service Repair Manual EVAP SYSTEM OPERATION INFORMATION ± EG005-01 April 27, 2001
Page 10 of 14
This diagnostic process tests the EVAP System.  The following diagnostic tips may be
used in conjunction with the Diagnostic

Page 3809 of 4592

TOYOTA CAMRY 1999  Service Repair Manual EVAP SYSTEM OPERATION INFORMATION ± EG005-01 April 27, 2001
Page 11 of 14
Diagnostic Process Flow Chart
(Continued on following page)
PRELIMINARY CHECK
�  Fuel level should be between 
1/4 and 3/4
�V

Page 3810 of 4592

TOYOTA CAMRY 1999  Service Repair Manual EVAP SYSTEM OPERATION INFORMATION ± EG005-01 April 27, 2001
Page 12 of 14
Pump pressure 
gauge and vapor 
pressure above 
atmospheric 
pressure (above 762 
mmHg).  No leak in 
canister or tank.Pump p
Trending: keyless, child restraint, wiper fluid, diagram, remote start, width, key