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Autos - Cars > Nissan > Re: why the sig...
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Re: why the significant gas mileage difference?

by Jim Yanik <jyanik@[EMAIL PROTECTED] > Apr 25, 2008 at 03:27 PM

Codifus <codifus@[EMAIL PROTECTED]
> wrote in 
news:4811f577$0$15157$607ed4bc@[EMAIL PROTECTED]
> nucleus wrote:
>> 
>> is there some sensor, that DOES NOT set a computer code, that can
>> cause
>> the computer to run the 94 engine richer than the 96 engine?
> 
> Yes, the O2 sensor. The main one sticking into the exhaust manifold.
> Replace it on the 94 motor. O2 sensors can get "tired" without tripping
> the computer code.
> 
> I replace a tired O2 on my 99 Sentra and the car came alive. The car 
> felt more powerful and the gas mileage went up. The original O2 was not 
> pulling any codes.
> 
> Also, the coolant temp sensor gets "tired" as well. When its faulty, it
> keeps teling the computer that the engine is cold when it isn't so the
> computer keeps running the car rich.
> 
> 
> Now, which one to replace? The O2, because the bad CTS symptoms inlclude

> bad gass mileage AND the car runing a little cool. You would have 
> noticed that your temp gage was sitting a little lower than normal.
> 
> CD
> 

I never heard of a coolant temp sensor getting "tired";all they are is a 
NTC thermistor,a temp sensitive resistor. I had one go open,on my Integra 
GS-R.

also,the CTS and the gauge temp sensors are separate items.

-- 
Jim Yanik
jyanik
at
kua.net
 




 15 Posts in Topic:
why the significant gas mileage difference?
nucleus <rose122550@[E  2008-04-19 16:44:15 
Re: why the significant gas mileage difference?
al <abuonag@[EMAIL PRO  2008-04-19 18:05:04 
Re: why the significant gas mileage difference?
Ed Light <nobody@[EMAI  2008-04-19 19:41:08 
Re: why the significant gas mileage difference?
nucleus <rose122550@[E  2008-04-20 04:24:08 
Re: why the significant gas mileage difference?
al <abuonag@[EMAIL PRO  2008-04-20 19:52:51 
Re: why the significant gas mileage difference?
nucleus <rose122550@[E  2008-04-21 05:11:10 
Re: why the significant gas mileage difference?
"C. E. White" &  2008-04-21 10:44:23 
Re: why the significant gas mileage difference?
Ed Light <nobody@[EMAI  2008-04-21 18:34:58 
Re: why the significant gas mileage difference?
Codifus <codifus@[EMAI  2008-04-25 11:14:24 
Re: why the significant gas mileage difference?
Jim Yanik <jyanik@[EMA  2008-04-25 15:27:59 
Re: why the significant gas mileage difference?
codifus <codifus@[EMAI  2008-04-25 08:45:43 
Re: why the significant gas mileage difference?
nucleus <rose122550@[E  2008-04-29 16:41:24 
Re: why the significant gas mileage difference?
Codifus <codifus@[EMAI  2008-05-02 16:55:19 
Re: why the significant gas mileage difference?
Jim Yanik <jyanik@[EMA  2008-05-03 00:44:56 
Re: why the significant gas mileage difference?
Codifus <codifus@[EMAI  2008-05-04 14:41:55 

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tan13V112 Sun Jul 6 21:37:59 CDT 2008.