I need some help. My nc won't start. Key in first position everything comes on turn it to start the ignition and nothing. Battery is good. I don't know what to try from here. Any assistance would be greatly appreciated.
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I need some help. My nc won't start. Key in first position everything comes on turn it to start the ignition and nothing. Battery is good. I don't know what to try from here. Any assistance would be greatly appreciated.
Not in Park?
Any more evidence that battery is good?
Manual transmission. In neutral. Tried also in gearQuote:
Originally Posted by jrj512
Took the battery to auto zone. They said it was good
Isn't there some sort of neutral safety switch?
Read this - https://forum.miata.net/vb/showthread.php?t=620832
Clutch switch?
That was what it feels like but I'm not sure how to check it
On my Honda, a little rubber bumper fell off the clutch pedal, so it would not press the button telling the car the clutch was in. Look for a small chunk of rubber on the floor.
I found the plunger for the clutch switch and pushed it in manually and held it and then tried to start it and still nothing. The rubber bit felt like it was still thereQuote:
Originally Posted by jrj512
Time to part it out, I guess. ;)
Lol still making payments.:(
Checked all the fuses?
I checked the fuses that have to do with the ignition and engine
Try unplugging that clutch switch and see if it cranks up.
Is it plugged in by the pedal?
^Just unplug from the switch itself. I think there are 2 of them....one when the pedal is pushed in, and one when it's out.
We will be glad to help you if you want to have it towed to Track Dog Racing. Give us a call. 214-340-9797
I might have to do that but I'm short on funds so I would have to see if I could get it diagnosed and do the work myself. Is that a something that y'all would do?Quote:
Originally Posted by black roadster
Look at #14 fuse in your engine bay fuse box. It's good? Can you push start it? Could be clutch switch, ignition switch, starter relay or the starter and starter harness.
Just checked the draw on the battery with a voltmeter and it stays on 12 volts the whole time. So I'm thinking power isn't making it to the starter.
Unplugged both sides and tried. It was the same.Quote:
Originally Posted by sammm
This may help. See section 01-19
http://foxed.ca/rx7manual/manuals/20...Highlights.pdf
Pretty sure you have to unplug and jumper it to over-ride the interlock.Quote:
Originally Posted by jakepoovey
That sounds right. That removes the switch from the circuit. IIRC, depressing clutch causes the switch to make contact between the two wires, completing the circuit.Quote:
Originally Posted by li_gangyi
I just unplug the one that gets pressed in when you push the clutch and just jumper that one side or unplug both and jumper them to each other?Quote:
Originally Posted by li_gangyi
Take a picture and post it here? I have no idea what other switch you are talking about. But you should only have to jumper the one that gets pressed in when you press the clutch.
I'm having trouble adding a pic from my phone. There's a switch underneath the peddle with a plunger that gets pushed in when the clutch is pressed in and there's a switch on top with a plunger that is let out when the clutch is pressed in
Quote:
Originally Posted by POS Racing
Even has a picture and a wiring diagram!Quote:
STARTER INTERLOCK SWITCH CONSTRUCTION/OPERATION [MT]
Construction
• The starter interlock switch mechanism prevents vehicle surge when the engine is started, enhancing the
safety. The engine cannot be started unless the clutch is depressed.
• The mechanism is provided with a starter interlock switch on the circuit between the ignition switch and the
starter.
Operation
• Depressing the clutch pedal presses the starter interlock switch rod. At this time, the starter interlock switch is
on, and the power circuit to starter closes. Accordingly, the starter operates only when the clutch is depressed
whereby the engine can be started.
I don't know how to read a wiring diagram. I get the picture I just couldn't tell which one it was. Either way I jumpered one and then the other and then both. Didn't have an effect
Here is a video of how a clutch interlock switch works. https://www.youtube.com/watch?v=9a3cGGfZ1Tg
The start circuit is normally open. When you press the clutch, you close the circuit by making contact between the two wires, inside the switch. You need to put the jumper between the two wires.
This video shows how to test the clutch interlock switch in the car. https://www.youtube.com/watch?v=9a3cGGfZ1Tg
Neither video is a Miata.
Pull the start relay and jump the 2 bigger contacts with fairly thick wire, does the starter turn? That will at least rule some stuff out.
Yup it was the ST 20a fuse. I Thought I checked it first thing. Thank you guys for all your help it is very very much appreciated
You're welcome. Glad you got it.
Great....was that #14 in the engine bay, that li_gangyi asked about?
I never could figure out which one number 14 was, in was the one in the engine bay marked st 20a. I think that's what he was talking about