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HELP: 99 instrument cluster in a 93 not working

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Old 02-09-07, 11:05 AM
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HELP: 99 instrument cluster in a 93 not working

I bought an instrument cluster from an RX-7 Type RZ 1999 with the white face and the tachometer starting point being at 6PM.

My problem is when I went to attach it in my 1993 it DOESNT WORK

Does anyone know why this is not working and a solution to my problem (adapter maybe)?
Old 02-09-07, 11:18 AM
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I can't imaging that's going to work. They changed the whole computer system since '93, and that cluster even has a guage that the OE idn't (boost).

I could be wrong, but I'd be surprised if you can just plug that in.
Old 02-09-07, 01:06 PM
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I know for a fact the later gauges work in a US car, but I've swapped the gauges themselves out. I have a '99 tach and a JDM oil pressure/water temp gauge in my car.

I think getting the later boost gauge to work has been covered somewhere - do a search on that.

Dale
Old 02-09-07, 01:27 PM
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you just have to run a vac. hoese for the boost gauge to work


i think
Old 02-09-07, 01:29 PM
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^lol
Old 02-09-07, 01:33 PM
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i have a 99 gauge cluster in my car but its been years since i hooked it up, you need to get the signal from the map sensor to the boost Gauge on the 99 cluster and i think you need a extra ground wire for the tach, ill see if i could find my wiring diagram so i can tell you exactly what goes where.
Old 02-10-07, 12:24 AM
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stuff off the later rx7's are not plug and play. the 96 and up are 32bit ECU's and its OBD2
Old 02-10-07, 09:26 AM
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Japan had OBD2

LOL
Old 02-10-07, 09:29 AM
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32 bit ECU? I coulda swore it was 16 bit...
Old 02-10-07, 10:40 AM
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1) Dale and KINETIK_FD3S are correct

2) The FD was never OBD-II compliant. In fact, that was a major factor in Mazda's decision to drop FD's from the US market. Tough US standards (precat, OBD-II) in the face of declining sales and a bad reliability rep doomed the FD's future in the US.

3) The system was upgraded to a 16-bit system, and it happened in '98, not in '99 (despite the now prevalent "99spec" nomenclature we regularly use...)

~Ramy
Old 02-10-07, 11:28 AM
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Originally Posted by FDNewbie
1) Dale and KINETIK_FD3S are correct

2) The FD was never OBD-II compliant. In fact, that was a major factor in Mazda's decision to drop FD's from the US market. Tough US standards (precat, OBD-II) in the face of declining sales and a bad reliability rep doomed the FD's future in the US.

3) The system was upgraded to a 16-bit system, and it happened in '98, not in '99 (despite the now prevalent "99spec" nomenclature we regularly use...)

~Ramy
Rambo, I'll buy one of these from you if you personally install it and get it working correctly
Old 02-10-07, 11:50 AM
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Rich, I'm sure one of my associates will be happy to install it for you. If it's gonna be me, you're looking at months until I have that kinda time haha
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