Catalytic Converter troubles
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Ilovestrippers
- Posts: 1
- Joined: Mon Jan 28, 2008 1:04 pm
- Car: Black 2000 5 Speed Nissan Maxima
Catalytic Converter troubles
My scan tool tells me "Catalysts efficiency below threshold, bank 2". Now I have to ask, am I replacing the cat or the sensor? I'm ridin hi on 90,000 miles, so I know my warrenty is up.
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blackmax23
- Posts: 163
- Joined: Tue May 29, 2007 7:20 am
- Car: 1999 Nissan Maxima SE-L
Re: Catalytic Converter troubles (Ilovestrippers)
I'm having the same troubles. Although, I kinda know why, I put a high-flow cat on. My SES will come on and off every 250 miles or so. It's got a mind of it's own!
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xerexabante
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'02 Nissan Maxima SE - Contact:
Re: Catalytic Converter troubles (Ilovestrippers)
Federal emissions warranty is 8yrs or 80k miles. They just replaced my cat on my Q45 for free. I had the same code as yours.
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MinisterofDOOM
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1961 Corvair Lakewood
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Former:
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Re: Catalytic Converter troubles (Ilovestrippers)
That code could also mean the o2 sensor(s) is bad.
Re: Catalytic Converter troubles (xerexabante)
That was my thought too, but he is at 90k miles... I would target the sensor first, it's a little less costly than the cat.--Mikexerexabante wrote:Federal emissions warranty is 8yrs or 80k miles.