i used to use the 87 octane tune on my silverado 5.3

it made a very noticable improvement and didn't hurt my MPG. i'm trying out the MPG Booster now to see if i gain any better fuel mileage

the Diablo Tune will be the best, performance wise but it requires premium fuel

mikel wrote:Id try 1r08a, yes.

I cant check to see if your were added since you renamed the files

i'll fix it when i get home tonight and email them to you

Mike, are you still requesting these TCM original backups?

i installed the latest crom file for my trinity, and i was unable to change the TCM tune with the MPG Booster canned tune. attached is my original PCM/TCM backup for my 2010 silverado lt 5.3l 2wd automatic.

edit: i now see there is a 1r08i ...

If you live in TEXAS and HATE your front plate, please take 2 seconds to sign this petition. and please pass it along to the other forum sites you are active in for maximum signage!!!

http://www.petitiononline.com/txplate/petition.html

can't wait to get that thing out of my windshield everytime i ...

tick, tock, tick, tock, tick, tock

the black exhaust is most likely oil blow by.

i had the same problem with my camaro, and after installing a catch can, no more black exhaust tips and no more blue smoke!

yea gotta be the revsion, cuz mine works fine and i can change parameters!

hmm interesting. i used my remote start a lot, and only one time has this happened, and that one time the car wouldn't turn over. i got in the car and started it, then all was fine

did you just say multi-vehicle options

is it the "fuel trim shifted lean" code? i got the same thing when i installed mine... i forget the actual codes but it is actually a "slow circuit response" in the front O2 sensors due to the wire extensions.

BUMP for an update on the status of TCM Support coming out!!!

it showed up this evening

it'll probably show up today... i asked the front office at my apt complex and they said UPS didn't even show yesterday. i have gotten things in the past that didn't show up at my door until 8:30 at night from UPS

Mike,

i received an invoice in the mail about the new cable, but the cable did not show up yet.

could snail mail really be faster than UPS?

you can send me one to "beta" test