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Message: [QUOTE="superpsd, post: 1342338, member: 15821"] One issue I am having is cold start up. It may be a worn or worn poppets. Making some tuning adjustments seems to help the problem but not solve it yet. Time will tell. I may need to get AE or download CarGauge App to run a buzz and CCT test. It barely hazes at idle when cold. Runs rough cold. Does not sound like it is missing more like an imbalance and sends vibrations thru the truck. No CEL. Runs rough until 2000 rpms then clears up. Seems to clear up around 80-100 EOT but the other night it ran rough way up to 120+ EOT and I was trying to baby it along until it cleared up. Last night it was running rough and EOT was still cold. I had to get it up to speed. Being easy on the throttle it ran like crap so I said F it and laid down the pedal a bit. As soon as it was around 2K and climbing fast it was like a switch and went completely smooth and balanced. Let off and then engine runs remarkably smooth. Same thing this morning EOT cold rough. Punch it and switch is thrown to running great mode and EOT is still cold. Once you force it to run great even shutdown and restarting warm it will run powerful and smooth. Lowering MFD near idle a bit did help. I have more adjustments to try but that's where I am at. I have 5 more tunes to load before I take off for home tonight. [/QUOTE]

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