Computer Codes

Reply Subscribe

Thread Tools

Search this Thread

10-28-2010 | 05:23 PM

puertoricaninnh

Thread Starter

Junior Member

Joined: Oct 2010

Posts: 1

From: Monroe, NH

Computer Codes

Can someone please tell me how to repair my car? 06 scion tc.. I keep getting these codes : PO441 and PO455

Thanks

10-28-2010 | 06:30 PM

SquallLHeart

Senior Member

SoCal tC Club
SL Member
Team N.V.S.
Scinergy
Scion Evolution

Joined: Oct 2004

Posts: 15,699

have you done anything recent to the car?

intake stuff? check your hoses...
and tighten your gas cap until it clicks a couple of times.

10-28-2010 | 06:48 PM

Spicy_McHaggiz

Senior Member

SL Member

iTrader: (1)

Joined: May 2008

Posts: 1,973

From: Langley AFB

Google and SEARCHING are your friends.

10-28-2010 | 08:41 PM

JahJosef

Senior Member

SL Member

Joined: May 2009

Posts: 148

From: In a van...down by the river

Most likely a vacuum leak or faulty gas cap/not screwed on properly.

Edit: there could be a hairline crack in the gas tank filler neck or return line/seal.

10-28-2010 | 09:28 PM

N0AuTHoRiTy

Senior Member

SL Member

iTrader: (3)

Joined: Jul 2009

Posts: 228

From: New York

P0441 - Evaporative Emission Control System Purge Flow
p0455 - Evaporative Emission Control System Leak Detected (Gross Leak)

Possible causes:
1)Defective or loose fuel cap
2)EVAP canister or hose cracked
3)Purge or vent solenoid defective
4)Vacuum in EVAP system

11-07-2010 | 05:57 AM

MichaelPBOK

Junior Member

Joined: Oct 2010

Posts: 20

9 times out of 10 when a yota comes into the shop and throws that code its gas cap. Either it wasn't on tight or the gasket can be damaged. Other then that it's most likely a fitting on your canister or the canister itself is cracked.