|
Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
|
Thread Tools | Display Modes |
02-11-2021, 08:03 AM | #1 |
Getting Wild
Join Date: Nov 2012
Location: The Villages, Florida
Posts: 79
|
Control of Fuel Pump
We have an issue with one of our two 2013 Yamaha gas EFI golf carts with erratic acceleration or none at all. What powers and controls the electric fuel pump inside the gas tank? Normally when the main switch is powered on I can hear the fuel pump activate for a few seconds. Now I don't at all and I know there is not 12 volts going to it. I cannot locate the ECM I was told to look for or any pressure switch in the fuel line. I can only find a turn signal module. I've tried following wiring diagrams but when you expand them the writing symbols become unreadable. It's embarrassing when a machine beats me. Any ideas?
|
Today | |
Sponsored Links
__________________
This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum |
|
02-11-2021, 08:12 AM | #2 |
Gone Wild
Join Date: Nov 2013
Location: Western NY
Posts: 631
|
Re: Control of Fuel Pump
Does the fuel pump run when you tap the acceleration pedal?
|
02-11-2021, 10:01 AM | #3 |
Getting Wild
Join Date: Nov 2012
Location: The Villages, Florida
Posts: 79
|
Re: Control of Fuel Pump
If it does I can't hear it. I guess the only way to determine that would be to tap the wires to a multimeter when I try and drive it to see if it's getting voltage. Normally as soon as I turn the main switch on I could hear it run for a few seconds just as our other cart does. Now it does not and I know it's not getting voltage to it. I know the switch makes the other connections. I need to spend time today working on it.
|
02-11-2021, 11:02 AM | #4 |
Gone Wild
Join Date: Sep 2010
Location: Florida
Posts: 1,895
|
Re: Control of Fuel Pump
The ECM is located under the passenger side rear between body and fender well on your cart I believe...
|
02-11-2021, 11:11 AM | #5 |
Getting Wild
Join Date: Nov 2012
Location: The Villages, Florida
Posts: 79
|
Re: Control of Fuel Pump
|
02-11-2021, 01:33 PM | #6 |
Gone Wild
Join Date: Nov 2013
Location: Western NY
Posts: 631
|
Re: Control of Fuel Pump
If you just tap the pedal for a second (don't let the engine start) the fuel pump will cycle. You will be able to hear it.
|
02-11-2021, 02:22 PM | #7 |
Gone Crazy
Join Date: Jan 2007
Location: Chesterfield, Va
Posts: 6,021
|
Re: Control of Fuel Pump
Fuse(s)?
|
02-11-2021, 06:13 PM | #8 |
Getting Wild
Join Date: Nov 2012
Location: The Villages, Florida
Posts: 79
|
Re: Control of Fuel Pump
Yes. I found what I believe is it and it appears there is another relay of some sort mounted next to it. Apparently I will have to put the rear end on jack stands, remove the right rear tire and fender well and examine the wiring and module.
|
02-11-2021, 06:19 PM | #9 |
Getting Wild
Join Date: Nov 2012
Location: The Villages, Florida
Posts: 79
|
Re: Control of Fuel Pump
|
02-14-2021, 09:16 AM | #10 |
Getting Wild
Join Date: Nov 2012
Location: The Villages, Florida
Posts: 79
|
Re: Control of Fuel Pump
So yesterday I pulled the right rear wheel and fender well. I removed and examined the ECM and what I could tell is the start/stop relay, both being sealed solid state devices. No burnt odor or burnt or damaged wiring. I never found any literature on actually testing or trouble shooting the module for individual pins values. I located a vacuum cannister that had worked it's way loose. Checked for obstructions and remounted back onto frame. I wired in a 12 volt light to see when and if the fuel pump gets powered when I finish putting everything back together and test run the cart.
|
|
Thread Tools | |
Display Modes | |
|
Similar Threads | ||||
Thread | Forum | |||
G1 empty fuel filter=bad fuel pump or tank vaccuum? | Gas Yamaha | |||
fuel coming out the vent hole of the carb... fuel pump issues? | Gas EZGO | |||
Yamaha Electronic Fuel injection Fuel Pump | Gas Yamaha | |||
Fuel line from valve cover to fuel pump | Gas Yamaha | |||
1988 Parcar Fuel pump Or no Fuel pump? | Gas Columbia ParCar |