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Discussion Starter #1
Hi all, i am new to the forum,

I bought a gsxr 600 k1, but i got a problem. It wont rev past 4k rpm and I constantly have a c30 error code, i know it means stcu so i replaced it, still the c30 code so i checked the wiring, there are no broken ones. I used the voltage meter and got 5 volts at the stcu and 1 wire 0.5 volts. So it sends to the ecu.
Next i have no voltage at the actuator. So does that mean ecu/ecm has to be replaced? Cuz i got got another 1 same problem.

Thanks in advance
I really need some extra guidence
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