Im new to Mega squirt so please be gentle.
Pin 37 is labelled up as fuel pump
I am a bit unsure if this is a supply for the fuel pump (highly doubt though)
Or its a trigger wire for a relay? so it switches the relay to power fuel pump?
or is it a live into the ECU to say "fuel pump on"
im unsure!
thanks
Question about fuel pump
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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66fb
Re: Question about fuel pump
MS grounds this pin to energize a relay that supplies power to the fuel pump. You would supply 12v to one side of the relay coil and take the other side to pin 37.Or its a trigger wire for a relay?
Re: Question about fuel pump
not too sure, sorry if i sound thick
It grounds pin 37 to complete the relay?
unsure, could you explain a little more if possible.
many thanks
sorry if im been thick and not understanding the diagram
It grounds pin 37 to complete the relay?
unsure, could you explain a little more if possible.
many thanks
sorry if im been thick and not understanding the diagram
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LeslieTroyer
- Helpful Squirter
- Posts: 35
- Joined: Tue Nov 20, 2007 11:46 am
Re: Question about fuel pump
wire one side of the Fuel Pump Relay coil to 12Volts (fused), the other side goes to pin 37. When the MS wants to start the pump, it will complete the circuit to ground so the FP relay pulls in. This seams "backwards" to most normal people, but electronics are better at sinking power, rather than sourcing them....
LEs
LEs
Re: Question about fuel pump
brilliant
i worked it out finally today useing a couple of links, and a few testers.
and the above is what it is, but thanks for clearing that up.
i worked it out finally today useing a couple of links, and a few testers.
and the above is what it is, but thanks for clearing that up.