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| 2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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#1
Sat, October 31st, 2009, 11:31 PM
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Switching tunes like that can lead to a confused PCM. Meaning when switching drive in stock for an hour or so then switch to the tune.
Lars
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#2
Sun, November 1st, 2009, 09:42 AM
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Maybe try the 1/4 mile. I bet you'll see a bigger difference with that test.
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#3
Wed, November 18th, 2009, 10:43 PM
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ive been away for awhile, did not know I could not change between tunes rapidly Good to know.
I will be driving my truck more in the coming weeks, I will do A little more feeling it out, but I think something isnt quite right Thanks for the replys
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#4
Wed, November 18th, 2009, 11:08 PM
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I was going to mention that this new colder weather should bring some better times, but then I noticed your in Canada where it is at least 10˚ cooler. In Texas, the cold fronts are just now dropping the temperatures below 40 ˚F at night.(I think its already too cold for me since it's still another two months for those THREE days of snow.
 ) The drop in temperature also dropped my 0-60 from 8.4 average to 8 flat. Havent had time to do a 1/4 mile though but will at the next opportunity.
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