RX7Club.com - Mazda RX7 Forum - Speedometer problem

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gio610

Apr 21, 2017 04:02 PM

Speedometer problem

I have stock 93 RX7 and on my GPS it saying that I'm going 80 but on the speedometer it saying is going 85. I tried this on a different car and on the other car it matches with the GPS.:scratch:

evo_koa

Apr 21, 2017 04:04 PM

wheel/tire size?

onewhippedpuppy

Apr 30, 2017 07:39 AM

I have OEM wheels with OEM sized tires, and my speedometer reads about 76 when I am going 70 MPH per GPS. Annoying but I just mentally adjust. Because the speedometer is electronic I assume the sender is just not accurate anymore after 20 years, it's on the longer and less important list of stuff to fix.

gio610

Apr 30, 2017 01:33 PM

Quote:

Originally Posted by evo_koa (Post 12176597)

wheel/tire size?

i have the stock wheels and tires

gio610

Apr 30, 2017 01:37 PM

Quote:

Originally Posted by onewhippedpuppy (Post 12179247)

do you if there is a sensor on the transmission or is it the dashboard cluster that is not working. The car only has 30 thousand miles

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