Ultra comp problem
Thread Starter
|
Elder User
Joined: Oct 2007
Posts: 706
Likes: 0
From: Virginia
Ultra comp problem
I started my truck this morning and had an interesting problem. It as cold, but not extremely....bout 33. The truck started fine, but it started doing short revs and wouldn't idle. It went from idle to about 900 RPMS over and over until I held the throttle down. I have been running the UC tune from Matt..... Any ideas?
Senior User
Joined: Aug 2007
Posts: 469
Likes: 1
From: lake park, MN
yup. git the cold start fix from matt. the hotter tunes are a little more cranky when it gets chilly. Its about -15 up here today and with the hybrid race and a big cold fix from matt it sounds like a 454 with the biggest loped cam you could find. I love it. Snorts black smoke in between lopes. just think of it as waking up the beast for the day!
Thread Starter
|
Elder User
Joined: Oct 2007
Posts: 706
Likes: 0
From: Virginia
Originally Posted by denman81
yup. git the cold start fix from matt. the hotter tunes are a little more cranky when it gets chilly. Its about -15 up here today and with the hybrid race and a big cold fix from matt it sounds like a 454 with the biggest loped cam you could find. I love it. Snorts black smoke in between lopes. just think of it as waking up the beast for the day!
Thread Starter
|
Elder User
Joined: Oct 2007
Posts: 706
Likes: 0
From: Virginia
Originally Posted by denman81
yup, just modifys the file for the first couple min of cold start. after that its the same.
Senior User
Joined: Aug 2007
Posts: 469
Likes: 1
From: lake park, MN
That I couldn't tell ya 100 percent on, havent had the cold tune in warm weather yet. she works fine in 36 degrees but i havent seen much warmer than that with the cold fix. Might want to talk to matt when you get ahold of him. I was going to try him tonight and Ill ask it if hes around and let ya know if I find anything out.
Former Vendor
Joined: Mar 2004
Posts: 4,362
Likes: 3
From: Hendersonville, NC
Both the UC and Hybrid files are pretty cranky when the temperatures drop. ICP is fairly high on both files to deliver large quantities of fuel; and with the lowered timing used as of late the fuel just doesn't completely burn in the cylinder until engine temperatures are warm. It certainly doesn't do any harm; other than loping and carrying on and freaking out the neighbors 
Trending Topics
Cargo Master
Joined: Oct 2005
Posts: 2,599
Likes: 2
From: Farmington NM
Originally Posted by tippmann87
I started my truck this morning and had an interesting problem. It as cold, but not extremely....bout 33. The truck started fine, but it started doing short revs and wouldn't idle. It went from idle to about 900 RPMS over and over until I held the throttle down. I have been running the UC tune from Matt..... Any ideas?
Seriously though, are you running Diesel Klean? When mine is cold she smokes like a steam Locomotive for the first 5 minutes unless I am running double dose of diesel klean.
Someone give this man a east coast economy file!!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Senior User
Joined: Aug 2007
Posts: 469
Likes: 1
From: lake park, MN
Originally Posted by KRDiesel
I am not sure why but everytime you post it takes me a few minutes to reply, It may have something to do with your sig photo 
I really should change it, it even distracts me!
