U7146 01 GT (bolt ons messed up tune)

[Mellowyellow01]

I had some basic add ons when I first installed the Diablo tune and it ran great, I just added a 75mm Thorttle Body and C&L intake plenum. and now it wants to bog down and even die at an idle, if I hit the gas and let off it will bog and die.
Also I have been reading here that using the tuner to change axle ratio and tire revs is not working? is that True? I have 373 gears now and need to change it will it work with my handheld?
My mods are as follows
BBK CAI
75mm TB
C&L intake plenum
JBA shorty headers
UPR X pipe (no Cats)
Underdrive pullies
3.73 gears
295 x 30 x 19" wheels (25.5 tire height (i think))

Also I just hit 40k and am going to replace the spark plugs, I want to install better than stock but there are so many choices out there I have not a clue on which plug would be best performance for my mods.
any help would be much appreciated. Thank you.

[Mellowyellow01]

Ok here is my update... I got the revs and gear changed on the tuner, and now speedo is perfect. but as far as this tune is concerned I am way off base with this performance tune. Scenario; When I am cruising (in any gear) if I let up the gas and coast in gear when I get back on the gas the car hesitates and bogs down before it will pick back up. I am getting way to much fuel it seems; which paramiters should I start messing with to get the car back in working order?

[christina]

With the bolt ons that you have, your best and safest option would be a custom tune from one of our CMR Dealers.

Give Mike @ Dallas Mustang a shout... www.1800mustang.com

[Mellowyellow01]

Will any of your CMR dealers in florida be able to do It on a dyno? Not sure I trust paying to have a Tune sent Via email and still not know if everything is right.
I tried a search on your Dealer loacator but it came up with Disiel tuners and just the handheld dealers, not sure which ones are cable of doing my car.

[christina]

When doing the search on our locator, select "CMR Ford Dealer" on the bottom and it will give you the 5 closest Ford tuners.

[grimwolf]

I had some basic add ons when I first installed the Diablo tune and it ran great, I just added a 75mm Thorttle Body and C&L intake plenum. and now it wants to bog down and even die at an idle, if I hit the gas and let off it will bog and die.
Also I have been reading here that using the tuner to change axle ratio and tire revs is not working? is that True? I have 373 gears now and need to change it will it work with my handheld?
My mods are as follows
BBK CAI
75mm TB
C&L intake plenum
JBA shorty headers
UPR X pipe (no Cats)
Underdrive pullies
3.73 gears
295 x 30 x 19" wheels (25.5 tire height (i think))

Also I just hit 40k and am going to replace the spark plugs, I want to install better than stock but there are so many choices out there I have not a clue on which plug would be best performance for my mods.
any help would be much appreciated. Thank you.

i have the same size tb and plenum plus a 85mm mass air flow housing with inlet pipe plus midlength headers with x pipe no cats and pullies and i never had that issue you speak of.. strange..

i had detonation issues but a little marvel mystery oil and some octain boost fixed that issue. i also didnt replace my plugs until i had 80 thousand on my car... plugs these days run forever it seems. platnum tip i hear are very nice.