KILL SWITCH
anyone have one?
fuel pump or other
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KILL SWITCH
Moderator: -Scott-
Kill switch as in my cars rolled over and pissing fuel everywhere and i wanna stop the engine or kill switch to stop the bastard thieves??
A number of people here have fitted them to the fuel pump and hidden the switch but if someone wants your car then they'll find it eventually. Just might slow them down enough to be caught but.
If you want a kill switch for emergencies I think the best thing to do is isolate spark first then fuel. I know a lot of modern cars after accidents (usually only ones sever enough to deploy air bags and such) wont restart due to the fuel pump being cut off until an error code has been reset. Its meant to prevent fuel being sprayed out in case of fire (well that's my completely uneducated guess anyway...).
A number of people here have fitted them to the fuel pump and hidden the switch but if someone wants your car then they'll find it eventually. Just might slow them down enough to be caught but.
If you want a kill switch for emergencies I think the best thing to do is isolate spark first then fuel. I know a lot of modern cars after accidents (usually only ones sever enough to deploy air bags and such) wont restart due to the fuel pump being cut off until an error code has been reset. Its meant to prevent fuel being sprayed out in case of fire (well that's my completely uneducated guess anyway...).
-Scott- wrote:Isn't it a bit early in the day to be pissed?
So how would you start it?fester2au wrote:I think some cars or people trigger the fuel pump from the oil presssure light circuit. I assume that means in a roll over the oil pump starves pretty quickly and therefore pump shuts down. You would hope so otherwise pretty useless. Certainly would be a good auto switch if effective.
Seriously, an interlock like the oil pressure switch is a good idea, but you need some form of bypass for starting - not difficult to do, but an extra complexity in the circuit.
If it's a security thing, I agree that they only buy time, or deter joy-riders. If a professional thief wants your car, you may as well hand over the keys.
If it's a motor sport thing, I would expect the rules would set minimum standards, and I thought a battery disconnect was a typical requirement. If that's what you're after, you might be better off in General Tech.
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