Just sprung to my mind, how many relays can the FP relay trigger output drive?
I'm using a factory loom as base for my build, and this has a multi-relay with two relay driver inputs.
In addition I've added a third relay myself, for the second fuel-pump which also is to be trigged by the MS3 fuelpump trigger output.
So in total 3 relays to be triggered. Might this be a problem?
Capacity of fuel pump relay driver?
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Re: Capacity of fuel pump relay driver?
In theory, about 1 amp. Most relays take about 0.2 amp. But you could feed your additional replays from the switched output of one of them. Just add a diode in series with the coil of each of the additional replays to prevent any reverse current flow.
Rover SD1 3.5 EFI
MS2 V3
EDIS
Tech Edge O2
London UK.
MS2 V3
EDIS
Tech Edge O2
London UK.
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Re: Capacity of fuel pump relay driver?
Ok, I might just give it a go as it is first to see if it works then.
Not too keen on adding even more customization to the wiring loom, it's getting hard to keep under control
Not too keen on adding even more customization to the wiring loom, it's getting hard to keep under control
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Re: Capacity of fuel pump relay driver?
Checked it today. Indeed 0.2 amps for the regular relay I used for the main fuel-pump.
The orginal double relay was 0.15 amps x 2. So in total 0.5A.
Guess I can just keep the wiring as it is then!
The orginal double relay was 0.15 amps x 2. So in total 0.5A.
Guess I can just keep the wiring as it is then!