Cracked air intake hose - 1995 mazda protege lx

Hi Peter

I have a 97 Mazda Protege 98000 miles and has the same lumpy idle
problem.
I went to Pepboys to get the IAC cleaned and they said that it cannot
be cleaned. Is that so?

Thanks
Pankaj

Peter wrote:
> While I agree with what you say ( Mazda also suggests not to adjust
the idle
> speed ) it is a common practice on these vehicles by non-Mazda and
Mazda
> technicians. If it only takes a small idle adjustment to fix your
condition
> I would not suspect any major problems. When new these cars had a
slightly
> rough idle that was exaggerated with age & mileage. With no other
> performance problems present a small idle screw adjustment will do
no harm.
> If you have extreme idle speed fluctuation, missing, hesitation,
"check
> engine" light on etc... I would not recommend you try to " mask "
the
> problem with an idle speed adjustment.
>
>
> "saeengineer" > wrote in message
> ...
> On Tue, 26 Nov 2002 00:01:14 GMT, "Peter"
>
> wrote:
>
> >Make sure your tune up items (spark plugs, ignition wires,
distributor cap
> &
> >rotor) are in good condition. If they are new or in good condition
you can
> >adjust the idle speed to compensate for a low or rough idle. It seem
on the
> >4cyl 626 and Prot=E9g=E9's they tend to idle lower with mileage &
time. The
> >adjustment is on the throttle body, it is a Phillips head screw
mounted
> >vertically and recessed slightly. Turn the screw until the rpm goes
> slightly
> >higher and the car idles smoother. Try it in small increments, it
should
> >only take a small adjustment to make a big difference. If the car
works
> good
> >otherwise, this is likely all it will take to fix your problem.
> >
>
> Idle speed should not be adjustable on this vehicle. For the final
> word, check the emissions sticker under the hood. If it says it's
not
> adjustable and turning the screw makes a lasting difference, you have
> another problem.