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Push button start....


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#1 BOHO

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Posted 09 August 2008 - 04:02 PM

Hey guys....I can't seem to find the right wire from the ingition to wire for my push button start I want to still have to turn my key to "ON" then use push button...So I guess its just the "start" wire I need to loop into the switch....Can anyone put me in the right direction...Thanks.

Braden
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#2 JamesR

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Posted 10 August 2008 - 11:47 PM

I've been using a start switch for a couple years now.  Here's I hooked it up using a relay and push button switch.


Starquest owner since 1988
88 Tsi (MPI conversion)
88 & 86 Tsi & 85 Technica (RIP)
1990 2.6L Turbo D50 (budget project)
93 RX-7 (277rwhp @10psi)
and a few others.

#3 Shelby

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Posted 11 August 2008 - 12:06 AM

QUOTE (JamesR @ Aug 11 2008, 12:47 AM) <{POST_SNAPBACK}>
I've been using a start switch for a couple years now. Here's I hooked it up using a relay and push button switch.




just follow James  pic,, that swt you have is a  toy,,don't try to run full solonid power thru it,, it's made to close the circirt  on a relay and  very little actual load goes thru it,,

the starter solonid  can take a  good bit of curent to operate , so to be safe a deicate'd power supply  from the battery or main power to the swt feed is best to use  ,fuse'd of course , a seperate power feed can  increase the ign  power available from the ign swt to the rest of the system durring starter operation
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#4 Shelby

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Posted 12 August 2008 - 12:17 AM

we do not use a starter relay,,we do how ever have a starter lock out relay,,it works with the oem alarm system,,basicly it opens the starter feed wire so the  starter can not be operate'd with the key swt ,,the start signal  goes from ign swt  directly to the starter in auto and 5 spd cars,,the auto has a neutral start swt loc out , the  same signal  goes to the  main relay and ecu
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#5 JamesR

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Posted 12 August 2008 - 01:31 PM

Here's a better diagram including the whole starting circuit.


Starquest owner since 1988
88 Tsi (MPI conversion)
88 & 86 Tsi & 85 Technica (RIP)
1990 2.6L Turbo D50 (budget project)
93 RX-7 (277rwhp @10psi)
and a few others.

#6 BOHO

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Posted 12 August 2008 - 03:07 PM

Ok guys...I'm confused...Jimmy and I tried and can't figure it out...My wires don't match any of our diagrams...I'm not sure whats right....here is a pic of mine...I used the bl/ylw wire...but I don't have a w/b wire....just b/w...I figured James might have been mistaken and this was the wire He was talking about...well...I was wrong..I don't know why I don't have a w/b wire...



Before I soldered my wires I wanted to make sure it was going to work...so I just ran the switch back to the battery to test it...The relay clicks like its supposed to..but when I turn the key to "ON" and try to start it...no click...no start....What do ya'll think? The wires that you see tapped in are for my turbo timer...no this....just so you know.

Edited by BOHO, 12 August 2008 - 03:16 PM.

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#7 Shelby

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Posted 12 August 2008 - 03:52 PM

the blk/yellow wire goes to the starter

the relay must  be ground'd on the energizering coil , when you push the button you are grounding the relay coil so the  wire off the button goes to ground normaly,,in the diagram  the button is connect'd to power supply , and the relay close terminal 86 is ground'd all the time

Edited by Shelby, 12 August 2008 - 03:55 PM.

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#8 BOHO

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Posted 12 August 2008 - 03:55 PM

QUOTE (Shelby @ Aug 12 2008, 04:52 PM) <{POST_SNAPBACK}>
the blk/yellow wire goes to the starter



What about the white/black wire I'm supposed to tap into? Right now I'm tapped into the black/white wire and its not working.
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#9 Shelby

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Posted 12 August 2008 - 04:12 PM

ok thanks Jimmy, the relay terminal 30 goes to the blk/white,,,

the relay terminal 87 goes to the blk/yellow wire,,

terminal 86 goes to vehicle ground

terminal 85 goes to a batt hot  terminal, you can use the blk/white wire or do your own power feed from the batt with an inline fuse



i have no idea why you have the blue wire  connect'd , but if mem serves thats the main relay turn on signal wire so the ecu will be activate'd
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#10 shift1313

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Posted 12 August 2008 - 04:34 PM

QUOTE (Shelby @ Aug 12 2008, 10:12 PM) <{POST_SNAPBACK}>
i have no idea why you have the blue wire  connect'd , but if mem serves thats the main relay turn on signal wire so the ecu will be activate'd


he said the tapped wires were for his turbo timer not for the ign switch.

boho, you need to have 12v going to one side of your push button, the other side of the push button goes to +12v on your relay switch wire.  



that was a pic i found online.  so say thats your relay.  #86 is coming from your push button, going to your push button would be a 12v acc source that is only hot when you turn your key on.  The push button will not have anything to do with the starter wire.    From there you need to have a fused 12v supply going to one side of your relay.  The relay in the pic would be pin #30.  The other side of the relay will be your signal wire to your starter.

so your push button is suppling 12v to the relay to open/close the circuit.  the relay has a 12v probably 20-30amp fused power line going to it and the other side goes to your starter.

make sense?
Matt
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#11 shift1313

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Posted 12 August 2008 - 04:43 PM

sorry for the crudeness but im working off a lap top with a track ball thing


Matt
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#12 BOHO

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Posted 12 August 2008 - 07:00 PM

Guys...I had a bad relay...I wired it up like JamesR's diagram....I know that Matt's would work also..but I already had them spliced open and everything.....It works great...I like it....Thanks for all the great info guys..maybe this could go in the FAQ's Jimmy?

Turned out great for me....I like it.


Edited by BOHO, 15 August 2008 - 12:48 PM.

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