Clutch safety switch

What model of Z are you referring to? I don’t believ the S30s have such a device.
 
Actually, just thinking this through a little more...

If this is a 370Z then I expect the switch is the same one used for SynchroRev so it would stop that working.

If you have SynchroRev turned off then I don't think it's an issue.
 
Back
Top