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starter terminals

Started by Nukz · 9 Mar 2008 · 8 replies

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NukzArchived member
hey just a quick qyestion. on the starter solenoid there r 2wires coming off it, a purple and a blue one, which ran to the nuetral start relay and ecu repectively. now if im bypassing these relays and running it straight off the ignition, what do i need to do with the blue ecu wires now that im running a microtech. what does this blue actually do? earth? thanks
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sohc2Archived member
The blue wire is the old computer wire isnt it? I am running an LT8s and I didnt hook that blue wire up as there is no need to as your not using the standard comp now. I relocated those relays under my dash.
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NukzArchived member
yeh its the old ecu wire. i was just wondering whther it was some sort of earth or switch wire. but looks like its not needed anymore. i threw all those relays in the bin, eliminate possible errors lol. thanks man
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sohc2Archived member
Dont you need to have those relays hooked up? Or are you running a MX7?
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NukzArchived member
those relays are only for the nuetral start position switch, so that ur car doesnt start unless its in park or nuetral. im running power straight off the ignition so i dont need them anymore.
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TIDYVHArchived member
Quote: Originally Posted by Nukz those relays are only for the nuetral start position switch, so that ur car doesnt start unless its in park or nuetral. im running power straight off the ignition so i dont need them anymore. u will burn out your ignition switch mate. a starter solenoid on the pull in winding will draw 30-40 amps untill the hold in winding takes over and it still like 8 amps or sumthing. eventually u will get volt drop to the starter and she wont crank. realy takes the load off the ign switch which will then only need to supply about .3 of an amp to switch the relay
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MonstaS4Archived member
Quote: Originally Posted by TIDYVH u will burn out your ignition switch mate. a starter solenoid on the pull in winding will draw 30-40 amps untill the hold in winding takes over and it still like 8 amps or sumthing. eventually u will get volt drop to the starter and she wont crank. realy takes the load off the ign switch which will then only need to supply about .3 of an amp to switch the relay The neutral start relay contacts are in series with the ignition switch. i.e. it's a safety so that the start signal switched by the ignition switch can't reach the starter unless the car is in neutral. Removing it will have no effect on the life of the ignition switch.
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TIDYVHArchived member
yer fair call i didnt read it properly i thought he had removed the start relay.. i didt think they ran a seperate relay for the inhibitor switch... why would they? i dont reckon they do..............
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MonstaS4Archived member
According to the gregories they do run a seperate relay. For 2 reasons i'd say. Firstly, like you said earlier, the starter draws a large current. The neutral switch is probably not rated for a high current therefore you need a relay. Secondly, as a start relay is not used, the starter wire would need to be ran down to the neutral switch (assuming it could handle the current) then back to the starter. The wire would need to be large to avoid volt drop.
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