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Help CEL! Code: P0420 #220510 Jul 9, 8:25pm Jul 9, 8:25pm
Joined: Aug 2003
Posts: 4,278
Pomona, CA
Virgilson OP
TheFilipinoCrew
2000 Toyota Celica GT
Virgilson OP
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

Re: Help CEL! Code: P0420 [Re: Virgilson] #220511 Jul 9, 9:01pm Jul 9, 9:01pm
Joined: Oct 2003
Posts: 615
california
2000 silver Toyota Celica GT
ikin
Senior Member
2000 Toyota Celica GT
ikin
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

Re: Help CEL! Code: P0420 [Re: Virgilson] #220512 Jul 9, 10:20pm Jul 9, 10:20pm
Joined: Jul 2004
Posts: 42
Cincinnati, OH
stormyone
Member
2000 Toyota Celica GT
stormyone
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??)

Re: Help CEL! Code: P0420 [Re: stormyone] #220513 Jul 9, 11:14pm Jul 9, 11:14pm
Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
QTRMLR_1
Specialist
2002 Toyota Celica
QTRMLR_1
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.
Re: Help CEL! Code: P0420 [Re: QTRMLR_1] #220514 Jul 9, 11:25pm Jul 9, 11:25pm
Joined: Aug 2003
Posts: 4,278
Pomona, CA
Virgilson OP
TheFilipinoCrew
2000 Toyota Celica GT
Virgilson OP
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?

Re: Help CEL! Code: P0420 [Re: Virgilson] #220515 Jul 9, 11:53pm Jul 9, 11:53pm
Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
QTRMLR_1
Specialist
2002 Toyota Celica
QTRMLR_1
Specialist
2002 Toyota Celica

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


I get my kicks on EC.
Re: Help CEL! Code: P0420 [Re: stormyone] #220516 Jul 10, 12:04am Jul 10, 12:04am
Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
QTRMLR_1
Specialist
2002 Toyota Celica
QTRMLR_1
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.
Re: Help CEL! Code: P0420 [Re: QTRMLR_1] #220517 Jul 10, 12:24am Jul 10, 12:24am
Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
QTRMLR_1
Specialist
2002 Toyota Celica
QTRMLR_1
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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