DS Runs Slow, No Full Throttle
 

I have a 2011 DS IQ cart that runs at a very slow speed. Batteries are 1-year-old showing 50.3 volts at rest. When you press the accelerator pedal the monitor shows no foot input until the pedal is pressed more than halfway to the floor. When the pedal is pressed fully to the floor the throttle input tops out at 66%. I have looked through many of the threads with similar throttle problems but am still unsure as to what to do next.

Re: DS Runs Slow, No Full Throttle
 

Seems like a test of the MCOR throttle module is next.
If your MCOR is bad and you have an MCOR1 you might need a conversion kit to upgrade to an MCOR4.
https://evdrives.com/faq-documents/c...els-explained/

Re: DS Runs Slow, No Full Throttle
 

The cart has an MCOR4 installed. It shows a steady climb from 0 to 66%no erratic or jumping around of the numbers.

Re: DS Runs Slow, No Full Throttle
 

Is it a made in China MCOR4 or an ITW Switches made in Mexico unit?

Re: DS Runs Slow, No Full Throttle
 

Pretty sure it said China on it, but I may be confused because every part I look at seems to say "made in China", lol.

Re: DS Runs Slow, No Full Throttle
 

Yep, went out to look at it, it is made in China.

Re: DS Runs Slow, No Full Throttle
 

Your throttle linkage is probably worn...Look down from the top of the cart thru the floor where the go pedal contacts the linkage that goes to the mcor.....You can put a wire tie around the linkage to take up the slack...You'll figure it out when you look at it....It works..

Re: DS Runs Slow, No Full Throttle
 

Already checked the linkage, it is tight, can't even fit a zip tie in there.

Re: DS Runs Slow, No Full Throttle
 

How about the rod bracket and bushings...If your having trouble with throttle range it still sounds like a linkage problem since there aren't any adjustments..

https://www.amazon.com/10L0L-Club-10.../dp/B00WFQ2INY

or the oem one

https://www.amazon.com/Accelerator-B.../dp/B073VZDZG4

Re: DS Runs Slow, No Full Throttle
 

Everything seems tight to me but I'll check it out again tomorrow. I'm leaning toward it have a bad MCOR. I'd hate to start throwing parts at it without a proper diagnosis.