2nd Generation Specific 1986-1992 Discussion

Need help with info on JDM RX7 FC

Old 10-22-2017, 07:42 AM
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Default Need help with info on JDM RX7 FC

I am looking at a 1990 RX7 GTX FC JDM RHD Turbo. But some things look kinda weird.
It has the S5 tail lights, S4 front bumper, S4 gauges and 2+2 cloth front and rear seats.
The main thing that confuses me is the red line is at 7k when it should be at 8k for a S5.
I am still not sure on the difference of S4 and S5 turbo engines.

Does anyone know if this car is a S4 or S5?

If anyone could help me please. Thank you.

Last edited by Malancho; 10-22-2017 at 07:53 AM.
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Old 07-19-2018, 12:24 PM
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Default Re: Need help with info on JDM RX7 FC

You need a new cluster. One is on ebay. Huge differences in s4 and s5 wiring and gauges/switches.
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Old 03-24-2019, 11:53 AM
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Default Re: Need help with info on JDM RX7 FC

Only N/A redline at 8k.
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Old 03-24-2019, 01:01 PM
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Default Re: Need help with info on JDM RX7 FC

I have a couple rhd cars, if you can post a couple pictures of what you have I can compare them with mine and show you which year you have and what parts you need. It sounds like there was some swapping of parts on this car. There are many rhd options that are not just JDM versions and they all have different wiring set ups. My first RHD caused me to learn everything about the worlds model options. I ended up needing to replace everything to get it to work properly. I am sure this can be figured out. Post up some pics!
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Old 03-24-2019, 02:18 PM
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Default Re: Need help with info on JDM RX7 FC

In the 2nd Gen FAQ this is the listed V.I.N. Breakdown.

RX-7 89-91 (12/88 - 7/91)
JM1 FC 331 * K 0 ######
JM1= Mazda Passenger Car
FC= RX7 Coupe
33= Coupe
35= Convertible
1= 1308cc rotary non-turbo
2= 1308cc rotary turbo
331= Coupe w/auto shoulder belt
332= Coupe Turbo w/auto shoulder belt
333= Coupe w/o auto shoulder belt
334= Coupe turbo w/o auto shoulder belt
351= Convertible w/o airbag
352= Convertible w/ airbag
*= Check Digit
K= 1989
L= 1990
M= 1991
0= Hiroshima Plant
######= Serial number


Build dates by serial number:
Model year-----Production Date----Serial Number
1986--------------8/85 - 6/86------100001-200000
1987--------------6/86 - 7/87------500001-600000
1988-------------7/87 - 12/88-----600001-700000
1989------------12/88 - 12/89-----700001-800000
1990------------12/89 - 11-90-----800001-900000
1991--------------8/90 - 7/91------900001-950000


Here is the V.I.N. of '90 Vert JM1FC3526L0711882

Broken Down

FC352-Convetible W/Airbag
L- 1990
0- Hiroshima
711882- the 11,882nd 1989 FC Built. ???? 1989? What Gives?


This should help you. Another way to tell is the CAS connector. If it runs from the Front harness you are S4 and if it's running from the Emissions harness you are S5.
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