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Old 05-27-2012, 04:18 AM
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question about looney tune

hey guys, bought me an sct a couple weeks agoo and installed the looney tune on my truck. At first it was incredible, half throttle would put me back in my seat. I have probably put 200-300 miles on it now though And it seems tonhave lost its spunk, full throttle doesnt even feel like what half throttle used to. Anyone else experience this? Also, truck has been shifting weird when its not completely warmed up, is that normal?
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Old 05-27-2012, 04:29 AM
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When you first got the tune, I bet you could make black smoke out of the tail pipe before the turbo had a chance to spool. Are you still able to produce a lot of black smoke?? If not, I suspect it could be a HPOP leak or it's fuel related. What is your fuel psi?


I noticed you have an '03, were the batteries disconnected at some point? You might want to try the VGT relearn.

Have you tried reloading the tune?
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Old 05-27-2012, 04:33 AM
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im still get a nice big puff of smoke before the turbo gets going, and yea i did the vgt relearn right after i did the egr delete and all that. maybe its just a seat of the pants thing. ill switch it back to stock and see what happens
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Old 05-27-2012, 04:55 AM
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just reinstalled the tune and went for a drive, it put that smile back on my face. Is this something im going to have to do every few weeks?

Also, I installed the tune a few weeks ago, then installed the blue spring kit about a week ago. I cant remember if thats exactly when it started losing its peo, but could that have possibly cause it? I wouldnt think so but thats the only thing I can think if thats changed
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Old 05-27-2012, 05:07 PM
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Mine seems to shift kinda wierd when cold also.
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