Sensitive throttle issue

IOWASTROKER46 · #1 (**permalink**) 05-07-2012, 10:04 AM

My F-450 starts surging. Stops only when I "floor it". Thought at first it was the hiway, cruise control, weight of ToyHauler, speed, etc. etc. Can I re-program my BlackMaxx Mini to stop this. It is a true PITA. THX

**H&S Performance** · #2 (**permalink**) 05-07-2012, 12:50 PM

Yes, you can download transmission "Schedule 2", which will help to reduce throttle sensitivity. Some vehicles, specifically F-450's with short gearing, will lock too early and can make for a touchy throttle. Try Schedule 2 High(S2H) or Schedule 2 Med(S2M) and I think it will get you taken care of. If you still have issues please let us know and we will be happy to point you in the right direction!

IOWASTROKER46 · #3 (**permalink**) 05-07-2012, 05:35 PM

I didn't mention my 4.88 gears, NOR the fact, that even pulling 18K# ToyHauler, I am in torque lock fifth gear at 45 mph. Going up some Colorado mountains, my tuner defuels me cuz I am at 1400 degrees. I did already change my coolant parameter to 230 degrees cuz of the de-fueling. Thx. Now to find my patch chord from laptop to tuner. RATS.

**H&S Performance** · #4 (**permalink**) 05-07-2012, 05:55 PM

No laptop to tuner USB cord needed, only the Micro SD card adapter. If you have lost it, any Micro SD card adapter will work just fine. Below is a link to our update application for your convenience. Please let us know if you have any issues!

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