leomurray Posted April 8, 2009 Share Posted April 8, 2009 Morning chaps, I'm nearing the end of my build, but the one job i kept bumping down the list of things to do is fitting the clucth switch, as i can't work out where to put it. If there are any MX5 builders out there who have found a way to mount it, i would be most greatful if you could post a few pics, or a quick description. Thanks, Leo Quote Link to comment Share on other sites More sharing options...
Mark (smokey mow) Posted April 8, 2009 Share Posted April 8, 2009 Mine is in a box somewhere at the back of the garage, you dont need it. I believe it sends a signal to the ECU to let it know when the clutch is depressed so that it reduces the engine revs. I haven't had any problems running the car without it. Quote Link to comment Share on other sites More sharing options...
JAG Posted April 8, 2009 Share Posted April 8, 2009 The clutch switch tells the ECU whether you have the clutch up or down. It combines this information with the neutral switch signal (so it knows if you are in or out of gear) and the throttle position sensor then decides whether to cut fuel to the injectors - thereby saving fuel. 1) If you are in gear with your foot off the clutch and no throttle opening - it cuts fuel (forward motion keeps the engine turning over). 2) If you are not in gear or have the clutch pedal depressed or have you foot on the throttle - it doesn't cut fuel. You can run without the switch and the ECU will default to 2) and you won't save the fuel (if that matters to you). Quote Link to comment Share on other sites More sharing options...
leomurray Posted April 8, 2009 Author Share Posted April 8, 2009 Thanks chaps, that's one less thing to worry about! (especially as some kind of bracket would have to of been fabricated and mounted onto the flor somewhere). 19 days to SVA and the body tub went on for the first time yesterday. I think i had better crack out the midnight oil! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.