Tom - Cool idea thanks heaps for that.
Terry - So how are non efi cars with electric pumps wired then (eg
b'bird) as there is no EMS to have such a function programmed in? And
how is the oil pressure safety cut wired in also??
Thanks guys
Andrew
On Tue, 24 Jul 2001, Terry Rudd wrote:
> Andrew/Tom,
>
> What a great idea - the list at work again.
>
> I've had a read up on these and they are very neat and safe and much more
> effective than using the common and mandatory Oil pressure switch as a
> safety cut. This is a keep post for the technical files as the RTA here
> requires a mandatory fuel cut with Ignition Off on an EFI conversion but
> this is much safer as it's triggered by engine Stop. Modern day EFI engines
> have a similar sort of thing built into the EMS but I don't know how it
> works exactly. I know when you turn the ignition key ON in the Toy the fuel
> pump primes and then stops after a few seconds and if you don't start the
> engine the pump will top up the pressure every now and again.
>
> regards
> Terry
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Tom Richardson
> Sent: Tuesday, 24 July 2001 8:50 PM
> To: [EMAIL PROTECTED]
> Subject: RE: Relayed power for computers, fuel pumps etc
>
>
> Andrew,
>
> You can attach it to the ignition switch if you like but a safer method is
> to use a LPG safety switch cut-out. You attach it to the negative side of
> the coil, and use it to trigger your fuel pump relay. They cost about $30
> and will switch for a few seconds when you turn the key (ie put some current
> through the coil) even though there's no pulsing, which serves as a pump
> primer. No ignition pulses = no fuel pump (which is probably the safest way
> to do it) Most come with a quick wiring diagram on the package, to help
> when you're talking to the LPG specialist, ask them for the switch which
> controls the solenoid on the tank - you need the same product but use it to
> switch a relay instead of a solenoid.
>
> Cheers
>
> - Tom
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Andrew Robert
> GREENBURY
> Sent: Tuesday, 24 July 2001 7:35 PM
> To: [EMAIL PROTECTED]
> Subject: Relayed power for computers, fuel pumps etc
>
>
> Hi everyone
>
> I want to set up a relay switched supply for fuel pumps and stuff when
> the ignition is on. I recall tom or zac was doing this a while ago - what
> trigger supply/wire did you use to switch the relay when the ignition is
> on?? terry suggested using the ballast resistor wires - the wiring diag
> shows a black/white and a black/blue wire so which one should be used?
>
> Thanks for any help on this wiring stuff
> Andrew
>
>
>
>
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