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RX-7 FC (S4) CPU #2 Board Repair Service
Symptoms of a Failing CPU #2:
Random electrical glitches
Warning lights staying on for no reason
Strange clicking sounds from behind the dash
Battery draining when the car is off
If your FC is acting possessed, there's a good chance the CPU #2 board is the culprit. This is a common issue in Series 4 RX-7s (1986–1988) as the electronics age. Over time, the capacitors on the board begin to fail and can leak corrosive electrolyte, damaging the board and causing all sorts of weird behavior.
What This Service Includes:
Replacement of all aging capacitors with high-quality new components
Inspection and repair of corroded traces caused by capacitor leakage
Application of new solder mask as needed to protect the board
Optional buzzer removal if you want a quieter cabin experience
Fix your FC’s electrical issues the right way and bring stability back to your dash and power system — no more mystery gremlins.
Bundle the FLASHER RELAY SERVICE for $10 off!
**This is a ship in service. You will need to ship your CPU to the address located at the top of the website.
RX7 FC S4 // CPU #2 REPAIR SERVICE
We back this service with a LIFETIME WARRANTY against defects in workmanship or materials. If your repaired amplifier ever fails due to something we did, just send it back—we’ll fix it again, free of charge.
What’s covered:
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Any failure related to our repair work
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Defective parts we installed
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Solder joint issues or board-level failures from the original service
What’s not covered:
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Damage from incorrect installation
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Water damage, burns, or physical abuse
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Issues unrelated to the amplifier repair
We’re here for the long haul—because we know if it’s done right the first time, it won’t need a second.
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