95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

Check Engine Light

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Old May 1, 2006 | 08:00 AM
  #1  
slemay6's Avatar
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From: Rhode Island
Check Engine Light

2001 4runner 86000 miles Codes PO 440,441,446.They said it is the fuel system any guesses
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Old May 1, 2006 | 09:18 PM
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Check the gas cap and see if it's on correctly.
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Old May 1, 2006 | 11:03 PM
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Originally Posted by slemay6
2001 4runner 86000 miles Codes PO 440,441,446.They said it is the fuel system any guesses
This can help...
https://www.yotatech.com/forums/f128/obdii-trouble-codes-76363/

P0440 Evaporative Emission Control System Malfunction
P0441 Evaporative Emission Control System Incorrect Purge Flow
P0446 Evaporative Emission Control System Vent Control Circuit Malfunction

And I agree with Humanoid.. check the gas cap. Past that, the evap canister could be plugged.
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Old May 2, 2006 | 05:31 PM
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Yeah I tried the gascap no workie
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Old May 3, 2006 | 05:52 AM
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Did you reset the codes after tightening the gas cap? The codes won't go away by themselves, so if you didn't do it, disconnect your battery for 5 or 10 minutes (or pull the ECU fuse) to reset your computer, then reconnect the battery (or re-install the ECU fuse), start the truck, and see if the CEL comes back.
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Old May 5, 2006 | 05:09 PM
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From: Rhode Island
Yeah it comes back after around 100 miles after reset
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