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Crow318
Dodge Dakota
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1/25/2005
14:49:46
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 Subject: P0420 question
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Message:
My truck has had this code for a while. I can clear it and it eventually comes back (obviously, because I dont change anything).
I know its "catalyst inefficient"
Neither o2 sensor throws a code, which leads my to believe they are in good shape. The rear one is new.
I have an aftermarket Cat, which I think is the problem. Has anyone else encountered it, and what did you do to fix it?
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ZenDak
Dodge Dakota
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1/25/2005
15:13:15
| RE: P0420 question
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Message:
P-420 = huh huh,,,,it's 4:20! jk. Sorry. I've gone insane w/O2 problems on my Dak. too. I'm sure that's one of the 5+ emissions codes I'm throwing now. If it's not the O2 itself,,double check the connectors for them. I've had water, and oil seep into them before and mess them up.
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Anthony
Dodge Dakota
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1/29/2005
21:16:07
| RE: P0420 question
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Message:
That code means the cat isn't doing it's job. Thats what cat efficency is all about. I have heard of aftermarket cats doing this on alot of vehicles. Unfortunately, your best bet to get rid of the code is put a factory cat back on.
Anthony
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Crow318
Dodge Dakota
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1/31/2005
08:13:07
| RE: P0420 question
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Message:
Thats not really what I wanted to hear, but I figured thats what it was. Good thing is, I have a hypertech that will clear the codes.
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