raheelfa

I have 99 camry 6 cylinder. 1 week ago i got this check engine light i check the code it gave P0441 and P0446. I dont know whats wrong with it . Also when i drive with my check engine light and somehow my traction control comes in use it shuts my traction control also off, but if the check engine light is not there my traction control works fine. I dont know why its doing that. Any help would be greatly appreciated.
Thanks

DFBonnett

You can find your OBD II codes here...
http://www.obd-codes.com/trouble_codes/index.php

I don't know how they relate to the traction control unless the TC is disabled anytime the check engine light comes up.
FWIW
YMMV

csaxon

You may have a simple hose leak or you may need a new VSV (Vacuum Switching Valve).

Since the first code indicates a pressure buildup in the charcoal canister, it's probably a bad VSV. But check everything. You may need a new canister also.

This is not a Camry, but the procedure is the same.
http://www.tankota.net/repair/Repair...eecsy/insp.pdf

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It worked fine until I fixed it!

Brian R.

Check the FAQ thread first:

http://www.automotiveforums.com/vbul...5&postcount=21

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raheelfa

Thanks I will try this weekend and see what happens. Thanks again for help.

nraj428

How do i know what the code is, is there a special tool or a computer for this? please advise. Thank you.

Brian R.

If your car is a '96 or newer, you need an OBDII code reader. If your car is '94-'96, then you have to check under your hood on the emissions sticker to tell if it is OBDII or OBDI. If your car is '93 or older, then it is OBDI.

For OBDII codes, check the FAQ thread as I cited above.

For OBDI procedure, see the following link:

http://www.autoshop101.com/forms/h27.pdf

The codes are:
1 O2A - Oxygen sensor #1
2 O2B - Oxygen sensor #2
3 MAP - manifold absolute pressure sensor
4 CKP - crank position sensor
5 MAP - manifold absolute pressure sensor
6 ECT - water temperature sensor
7 TPS - throttle position sensor
8 TDC - top dead centre sensor
9 CYP - cylinder sensor
10 IAT - intake air temperature sensor
12 EGR - exhaust gas recirculation lift valve
13 BARO - atmospheric pressure sensor
14 IAC (EACV) - idle air control valve
15 Ignition output signal
16 Fuel injectors
17 VSS - speed sensor
19 Automatic transmission lockup control valve
20 Electrical load detector
21 VTEC spool solenoid valve
22 VTEC pressure valve
23 Knock sensor
30 Automatic transmission A signal
31 Automatic transmission B signal
36 traction control found on JDM ecu's
41 Primary oxygen sensor heater
43 Fuel supply system
45 Fuel system too rich or lean
48 LAF - lean air fuel sensor
54 CKF - crank fluctuation sensor
58 TDC sensor #2
61 Primary oxygen sensor
63 Secondary oxygen sensor
65 Secondary oxygen sensor heater
67 Catalyst low efficiency. (same as P0420)
71 random misfire cylinder 1
72 random misfire cylinder 2
73 random misfire cylinder 3
74 random misfire cylinder 4
80 Exhaust Gas Recirculation insufficient flow detected
86 ECT Sensor (Engine Coolant Temperature) circuit range / performance problem
90 Evaporative Emission Control System leak detected in the fuel tank area
91 Evaporative Emission Control System insufficient purge flow

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kazowie

Hi,

I have a 2002 Toyota Sienna LE but it has the same engine as the Camry. I have been having issues with the check engine light coming on, and getting the PO440/441&446 codes. I have taken it to the dealer to run a diagnostic test who confirmed I have a faulty VSV and charcoal filter. This is consistent with everything I have found on this forum, but I cannot find the replacement parts anywhere online.

Can anyone tell me where I can order a VSV and charcoal filter online?