6.4 barely any throttle response in gear please help!

Bignbadbelair

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Please help my 2008 6.4 is acting up
Hey guys I have a 2008 f350 king ranch. My truck been a good truck and I have been driving it all summer. But since it been cooler in mornings now (not sure if it has anything to do with my problem) but lately my truck when running it will rev up in park or neutral but when I put it in gear or reverse you can put the pedal to the floor and it will barely try to rev at all. One time when it did that it sent a map sensor code and I pulled map sensor out and cleaned it and put back in then it acted same way for couple min then acted normal. Only thing done to my truck is a have a dpf delete and also have sct tuner with a single tune to delete the dpf. That's all. Truck has 102k on it. I was wondering I haven't had this truck in cold weather yet or anything just bought it this summer. Is there some kind of safety thing to make sure truck done rev until it warms up or something like that or can you just jump in and be able to put in gear and drive it? Any help is appreciated. Also today when the truck did that to me it never put cel light on or anything. Also where can I buy a scan tool for this truck?

Thanks
Jimmy

Ps lastnight driving home the truck was just fine driving and running I know it's not trans or anything it gotta be something simple. This is newest truck I ever had I am used to the early 90s ford trucks where everything was
Mechanical
 

Bignbadbelair

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I am pretty sure cause truck ran great yesterday and when it does this no throttle stuff it don't smoke or snything
 

Bignbadbelair

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Oh ya so that may be my problem? Lastnight and today I leaned if I start the truck up let it idle for 3-5 min then shut it off then fire back up it runs great once I restart it. Just in mornings or if sat all day it limits throttle until I let it warm up then **** key off and restart it then it runs great
 

Bignbadbelair

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Okay I'll buy another tuner any suggestions? The truck alreAdy has a dpf delete so I need one that I can have that deleted also wanna in future do egr delete and cold air intake
 

SEABEE08FX4

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Sounds like you got a non dpf delete tuner, you can't just go yanking stuff off the motor with out the proper tuning. Not any off the shelf tuner is capable of that. Also SCT tuners required the sensors still be electrically plugged in.
 

Bignbadbelair

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Please let me know whAt kind of tuner I need ill buy one tonight that's no problem but need to know what right one I need the truck has a dpf delete and in future I wanna do egr delete
 

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