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Joined: Aug 2003
Posts: 4,278
Virgilson
TheFilipinoCrew
Virgilson Jul 10, 4:25am - #220510 

TheFilipinoCrew
2000 Toyota Celica GT

Joined: Aug 2003
Posts: 4,278
Pomona, CA
Help CEL! Code: P0420

Help, today i just got a CEL, since i had a CarChip in my car at the time i just unplugged it and hooked it to my computer. so the code comes out to be:

Code: P0420

Description: Catalyst System Efficiency Below Threshold (Bank 1)

can anyone tell me what this means?
thanks
Joined: Oct 2003
Posts: 615
ikin
Senior Member
ikin Jul 10, 5:01am - #220511 
2000 silver Toyota Celica GT
Senior Member
2000 Toyota Celica GT

Joined: Oct 2003
Posts: 615
california
ill try to bring my celi book tommorrow and will check it out! thumbsup
Joined: Jul 2004
Posts: 42
stormyone
Member
stormyone Jul 10, 6:20am - #220512 

Member
2000 Toyota Celica GT

Joined: Jul 2004
Posts: 42
Cincinnati, OH
Originally Posted by Virgilson
Help, today i just got a CEL, since i had a CarChip in my car at the time i just unplugged it and hooked it to my computer. so the code comes out to be:

Code: P0420

Description: Catalyst System Efficiency Below Threshold (Bank 1)

can anyone tell me what this means?
thanks


Trouble Areas
* gas leakage on exhaust system
* Open or short in heated oxygen sensor circuit
* Heated oxygen sensor
* Three-way catalytic converter (whatever that is??)
Joined: Jun 2004
Posts: 1,376
QTRMLR_1
Specialist
QTRMLR_1 Jul 10, 7:14am - #220513 

Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
Virgilson, how many miles do you have on your celi? It could be time for a new cat, or you could wait until right before your next smog test, which is probably coming up soon since you have an '00.

I get my kicks on EC.
Joined: Aug 2003
Posts: 4,278
Virgilson
TheFilipinoCrew
Virgilson Jul 10, 7:25am - #220514 

TheFilipinoCrew
2000 Toyota Celica GT

Joined: Aug 2003
Posts: 4,278
Pomona, CA
^^^ how much do you think it would cost to get a new catalytic converter? whatever that is?
Joined: Jun 2004
Posts: 1,376
QTRMLR_1
Specialist
QTRMLR_1 Jul 10, 7:53am - #220515 

Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
'bout $100.

I get my kicks on EC.
Joined: Jun 2004
Posts: 1,376
QTRMLR_1
Specialist
QTRMLR_1 Jul 10, 8:04am - #220516 

Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
Originally Posted by stormyone
Originally Posted by Virgilson
Help, today i just got a CEL, since i had a CarChip in my car at the time i just unplugged it and hooked it to my computer. so the code comes out to be:

Code: P0420

Description: Catalyst System Efficiency Below Threshold (Bank 1)

can anyone tell me what this means?
thanks


Trouble Areas
* gas leakage on exhaust system
* Open or short in heated oxygen sensor circuit
* Heated oxygen sensor
* Three-way catalytic converter (whatever that is??)


If anyone cares...three-way catalytic converter is basically just the catalytic converter since three-way is a type of cat and that's what we have. "Three-way" refers to the three regulated emissions it helps to reduce -- carbon monoxide, VOCs and NOx molecules.

I get my kicks on EC.
Joined: Jun 2004
Posts: 1,376
QTRMLR_1
Specialist
QTRMLR_1 Jul 10, 8:24am - #220517 

Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
VOCs=Volatile Organic Compounds=Hydrocarbons

I get my kicks on EC.
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