speedometer & tach failure

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Jan 29, 2004 | 08:39 PM

turbosmitty

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From: Okinawa, Japan

speedometer & tach failure

The speedometer & tachometer on my '93 RX7 ceased to function at the same time. Can someone tell me the probable cause and resolution?

Jan 29, 2004 | 08:54 PM

Railgun

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From: Chi -> Maidstone

Check fuses

Jan 29, 2004 | 09:16 PM

lopedl

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don't quote me on this but I heard the ignitor controlls those functions.

Jan 29, 2004 | 09:26 PM

clayne

PV = nRT

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From: New Zealand (was California)

Tachometer is from crank angle sensor.
Speedometer is from vechicle speed sensor.

I would check the routing and connections to your gauge cluster before anything else.

Jan 29, 2004 | 09:40 PM

Railgun

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From: Chi -> Maidstone

Well, I've had this happen once shortly after I first got mine and a fuse (maybe even two) blew. Just a suggestion from my experience.

Jan 29, 2004 | 10:23 PM

clayne

PV = nRT

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From: New Zealand (was California)

If fuses are blowing ther is a short somewhere.

Jan 29, 2004 | 10:37 PM

Railgun

I won't let go

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From: Chi -> Maidstone

True...of course, it never happened again on mine. Go figure.

speedometer & tach failure

speedometer & tach failure

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