ChrisLeary
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 posted on 22/9/11 at 07:04 PM |
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megasquirt fuel pump wiring
Evening all,
I've started stripping the 7 I bought a couple of months ago to tidy things up and sort things out. I've started to strip the wiring out
and I started with the engine loom. The car is running a 2.0l zetec silvertop with megasquirt 1 V3. I've managed to trace all of the cables to
sensors around the engine and disconnected them, I now have the engine side of the loom completely out of the car.
I'm a bit confused though. I've got a relay to the 12V+ supply to the ECU, which I've removed with the loom, but I'm confused
as to where and how the fuel pump is wired up? I've got a single cable coming from the 37pin MS plug, but I'm sure it was running to
another relay.
Can anyone help??? PLEASE!!!!
Thanks in advance,
Chris
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r1_pete
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| posted on 22/9/11 at 07:17 PM |
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The diagram here should help Link
Pin 37 grounds and engergises the relay, on switch on, then only when the engine is running.
[Edited on 22/9/11 by r1_pete]
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Rod Ends
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| posted on 22/9/11 at 07:21 PM |
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Megasquirt wiring diagram
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ChrisLeary
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| posted on 22/9/11 at 09:54 PM |
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Ok I've had a read and looked at the wiring diagrams.
So literally all I need is a relay from ignition to the fuel pump with a live feed in and the single cable to the MS unit itself?
I bought the car with this system already installed, so please be gentle with me.
Thanks again.
Chris
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ashg
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| posted on 23/9/11 at 08:41 AM |
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remember the fuel pump output on the ms is ground switching. basically you put a live to one side of the relay coil then the negative side of the
relay coil goes to the ms.
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
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