No Acceleration then Big Surge

SCStevens04 · 05-09-2013, 07:24 AM

I press my accelerator, get nothing for a few seconds then a big surge. Any culprit ideas?

I recently had a local shop upgrade my 2008 Precedent with an Alltrax 500, some unknown high speed motor, 4 gauge cables, heavy duty solenoid & new batteries. I believe they also put installed a used MCOR.

Speedchaser · 05-09-2013, 08:13 AM

Not sure I have heard it described that way. With that controller I press the pedal down and it did not hit til a third of the way down and then hit hard, is that what your does?

SCStevens04 · 05-09-2013, 08:33 AM

Well, it does that but I can live with it. The big problem is that I stomp on the pedal, it sits there around 3 seconds then takes off.

ForBruce · 05-10-2013, 05:18 AM

sounds like your MICOR might be defective.... also the "THROTTLE UP RATE" in the controller programming might be set too high...

I have an alltrex dcx500 and when my throttle up was set high i was able to leave rubber. ( had to lower as the wife spilled food she was taking to another campsite)

also check the throttle curve file..as it might be set to "S-curve" --that can delay acceleration

also do you have a "PRE-CHARGE" resistor across the "2-LARGE" terminals of your solonoid

05-09-2013, 07:24 AM	#1
SCStevens04 Not Yet Wild Join Date: Apr 2012 Location: SC Posts: 2	No Acceleration then Big Surge I press my accelerator, get nothing for a few seconds then a big surge. Any culprit ideas? I recently had a local shop upgrade my 2008 Precedent with an Alltrax 500, some unknown high speed motor, 4 gauge cables, heavy duty solenoid & new batteries. I believe they also put installed a used MCOR.

05-09-2013, 08:13 AM	#2
Speedchaser Gone Wild Join Date: Jul 2012 Posts: 909	Re: No Acceleration then Big Surge Not sure I have heard it described that way. With that controller I press the pedal down and it did not hit til a third of the way down and then hit hard, is that what your does?
Speedchaser Gone Wild Join Date: Jul 2012 Posts: 909

05-09-2013, 08:33 AM	#3
SCStevens04 Not Yet Wild Join Date: Apr 2012 Location: SC Posts: 2	Re: No Acceleration then Big Surge Well, it does that but I can live with it. The big problem is that I stomp on the pedal, it sits there around 3 seconds then takes off.

05-10-2013, 05:18 AM	#4
ForBruce Mr. Helper Join Date: May 2009 Location: NY Catskills & South carolina Posts: 445	Re: No Acceleration then Big Surge sounds like your MICOR might be defective.... also the "THROTTLE UP RATE" in the controller programming might be set too high... I have an alltrex dcx500 and when my throttle up was set high i was able to leave rubber. ( had to lower as the wife spilled food she was taking to another campsite) also check the throttle curve file..as it might be set to "S-curve" --that can delay acceleration also do you have a "PRE-CHARGE" resistor across the "2-LARGE" terminals of your solonoid

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