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'03 Ford 6.0 Cold Start Problems

Mad Maxx

See, what had happened was...
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Location
Long Island, NY
So my buddy got a 6.0 a few months ago (I know, I tried to steer him away) and it's been good until now.

When his custom "Looney Tune" is loaded, it's now having trouble starting in the mornings when it's been sitting all night. It'll either not start at all, take a while to start but then dies, and it's also backfiring through the exhaust.

It's got about 200k on it, EGR Delete, 100hp Injectors, Airdog 150, Intake, Exhaust, Custom SCT Tunes & Canned Tunes.

It only does it on the Looney Tune, doesn't do it on the Stock Tune or other Canned Tunes. The Looney Tune has been loaded all Winter as well and it never had this problem, it just came outta nowhere the other day.

Any ideas?
 
I was gonna say FICM as well, but since you say it only does it on one tune is an odd one. I'm no FORD guy, so not much help on it.
 
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