Immediate speed loss

yamahaguy97 · 04-04-2017, 04:25 PM

Hey,

First some details about the cart. It's a 2007 DS villager 6 cart with 8 6v batteries. Sepex controller, OBC Mcor. It has new batteries. The issue is when you accelerate it goes pretty fast for a second or two then immediately goes to a crawl. I'm talking around 2-3 mph. If you release the pedal and wait a second, it does the same thing- fast take off for a second, then down to a crawl almost immediately.

I suspect things like the mcor and speed sensor, but club car guys please let me know if there is anything else to check into

Kashmir · 04-04-2017, 04:32 PM

Sounds like a speed sensor to me....
Dave at Revolution should chime in shortly (unless he's working late)

yamahaguy97 · 04-04-2017, 04:36 PM

Thank you sir

Volt_Ampere · 04-04-2017, 05:59 PM

Does sound like speed sensor has failed.

TahoeDawgZ71 · 04-04-2017, 08:07 PM

It's either the speed sensor or the 10 amp circuit breaker next to the tow/run switch. If you have a Curtis handset to scan the car with it'll tell you for sure. It'll say SPEED SENSOR FAULT or MAIN BREAKER OPEN. Both issues will cause the same problem. If it's a speed sensor, it'll fail the speed sensor test. If it's a breaker, it will still pass the speed sensor test. Try the sensor test in the Sticky section of this forum to narrow it down. IQ plus vehicles like yours will use the 1027049701 ADC/AMD speed sensor, the same as new model IQ/Excel Precedents. Don't buy Chinese crap on eBay. Buy a good one, or buy 17 spares.

TahoeDawgZ71 · 04-04-2017, 08:08 PM

Quote:

Originally Posted by Kashmir

Dave at Revolution should chime in shortly (unless he's working late)

Working on a 12 pack.

Kashmir · 04-04-2017, 08:19 PM

and if you need a speed sensor...Revolution Golf Cars (site sponsor) is THE place to get it.
Best customer service ever!!

yamahaguy97 · 04-04-2017, 08:23 PM

Thank you everyone

yamahaguy97 · 04-04-2017, 08:29 PM

Now that I think of it, earlier today I was looking at the circuit breaker next to the tow switch. Does it have two wires coming out of it from the back from the harness? Because if I remember right it looks like it cracked off from behind the plate where it is mounted and it was laying down on top of some other wires

I have a feeling now it's not the speed sensor

yamahaguy97 · 04-04-2017, 08:31 PM

I did not realize that black square box was a circuit breaker

04-04-2017, 04:25 PM	#1
yamahaguy97 Gone Wild Join Date: Jan 2016 Location: FL Posts: 1,067	Immediate speed loss Hey, First some details about the cart. It's a 2007 DS villager 6 cart with 8 6v batteries. Sepex controller, OBC Mcor. It has new batteries. The issue is when you accelerate it goes pretty fast for a second or two then immediately goes to a crawl. I'm talking around 2-3 mph. If you release the pedal and wait a second, it does the same thing- fast take off for a second, then down to a crawl almost immediately. I suspect things like the mcor and speed sensor, but club car guys please let me know if there is anything else to check into

04-04-2017, 04:32 PM	#2
Kashmir Gone Wild Join Date: Sep 2015 Location: Cincinnati, Ohio Posts: 1,354	Re: Immediate speed loss Sounds like a speed sensor to me.... Dave at Revolution should chime in shortly (unless he's working late)

04-04-2017, 04:36 PM	#3
yamahaguy97 Gone Wild Join Date: Jan 2016 Location: FL Posts: 1,067	Re: Immediate speed loss Thank you sir

04-04-2017, 05:59 PM	#4
Volt_Ampere Gone Wild Join Date: May 2012 Location: Rio Verde, Az Posts: 7,193	Re: Immediate speed loss Does sound like speed sensor has failed.

04-04-2017, 08:07 PM	#5
TahoeDawgZ71 revolutiongolfcars.com Join Date: Mar 2010 Location: Golf Car Capital of The World... Augusta, Georgia Posts: 10,224	Re: Immediate speed loss It's either the speed sensor or the 10 amp circuit breaker next to the tow/run switch. If you have a Curtis handset to scan the car with it'll tell you for sure. It'll say SPEED SENSOR FAULT or MAIN BREAKER OPEN. Both issues will cause the same problem. If it's a speed sensor, it'll fail the speed sensor test. If it's a breaker, it will still pass the speed sensor test. Try the sensor test in the Sticky section of this forum to narrow it down. IQ plus vehicles like yours will use the 1027049701 ADC/AMD speed sensor, the same as new model IQ/Excel Precedents. Don't buy Chinese crap on eBay. Buy a good one, or buy 17 spares.

Today
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04-04-2017, 08:19 PM	#7
Kashmir Gone Wild Join Date: Sep 2015 Location: Cincinnati, Ohio Posts: 1,354	Re: Immediate speed loss and if you need a speed sensor...Revolution Golf Cars (site sponsor) is THE place to get it. Best customer service ever!!

04-04-2017, 08:23 PM	#8
yamahaguy97 Gone Wild Join Date: Jan 2016 Location: FL Posts: 1,067	Re: Immediate speed loss Thank you everyone

04-04-2017, 08:29 PM	#9
yamahaguy97 Gone Wild Join Date: Jan 2016 Location: FL Posts: 1,067	Re: Immediate speed loss Now that I think of it, earlier today I was looking at the circuit breaker next to the tow switch. Does it have two wires coming out of it from the back from the harness? Because if I remember right it looks like it cracked off from behind the plate where it is mounted and it was laying down on top of some other wires I have a feeling now it's not the speed sensor

04-04-2017, 08:31 PM	#10
yamahaguy97 Gone Wild Join Date: Jan 2016 Location: FL Posts: 1,067	Re: Immediate speed loss I did not realize that black square box was a circuit breaker

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