On Apr 25, 11:27 am, Jim Yanik <jya...@[EMAIL PROTECTED]
> wrote:
> Codifus <codi...@[EMAIL PROTECTED]
> wrote
innews: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
Yup, the CTS and temp gage sensor are separate, and the CTS does get
tired. Happened in my wife's Altima. Repalcing the CTS shot the car's
gas mileage from an abysmall 21 right up to 27 mpg. CTS replacement is
slow to adapt, it takes about 3 tankfulls for the ECU to adjust.
CD
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