2006 Check Engine Light. Need Help

Fory Horio wrote:

> It's kinda odd that the odd meter works fine, but
> speedometer is about 10% off. When I drive 60MPH,
> it shows about 66-66 MPH.

Miatas typically read a little higher than actual speed, but not usually
that much off.
I assume that 66-66 MPH is a typo. Does the reading actually vary as you
drive along at the same speed?

> Does the gear slipping show as a faulty "Speed Sensor"?

I don't know, someone here probably has a better idea of what is causing
the problem. You might want to ask at the miata.net forum as well.
The answer to your question is very likely in the archives there.

A faulty speedometer cable usually makes noise, and the gears on the one
with 120,000 miles looked as good as the one with 75K miles, with no
visible damage or wear.
Just a guess and a fairly easy one to check without needing to have
testing equipment.

You don't happen to have a friend with a 1996 or 1997 model that would
let you do a test-swap of the instrument panel, do you?

My best guess is that the problem is at your speedometer/instrument
panel, but like I said, electronics are something that I usually leave
to the experts.
I was mainly commenting on the speedometer being mechanical.

Pat

"Fory Horio" > wrote in message
> It's kinda odd that the odd meter works fine, but
> speedometer is about 10% off. When I drive 60MPH,
> it shows about 66-66 MPH.

Have you changed tire sizes ?



--
" ya gotta let it out, Captain! " ( Jaime Brockett )

"Remove This" > wrote:

> "Fory Horio" > wrote in message
>> It's kinda odd that the odd meter works fine, but
>> speedometer is about 10% off. When I drive 60MPH, it shows about
>> 66-66 MPH.
>
> Have you changed tire sizes ?

That would change the odometer readings also.

> Fory Horio wrote:
>> It's kinda odd that the odd meter works fine, but speedometer is
>> about 10% off. When I drive 60MPH, it shows about 66-66 MPH.

pws wrote:
> Miatas typically read a little higher than actual speed, but not
> usually that much off. I assume that 66-66 MPH is a typo. Does the
> reading actually vary as you drive along at the same speed?

Mine is just under 10%, when I'm going 60mph, it shows about 64-64mph..

-Scott