Hello All,

1. U7146
2. Latest Revision
3. 1998 Mustang GT

I have an automatic. Recently had the 3.27 gears taken out and replaced with 4.10s. Do I need a modified tune, anything for shift points, etc? (I have already corrected the speedo). Can someone please give me some accurate feedback, and who ...

Hmmmm. Ok. I thought the Diablo Predator could hold up to 5 tunes at a time, so I was expecting to see a second choice for the new tune I added to the Diablo. If it in fact copied over the custom tune already on there then no big deal....I have that one saved on my laptop as well.

1. 7146
2. Not Sure of version
3. 98, Ford, Mustang GT

Hey Guys,

Just a quick question. I already had a custom tune installed to my car. When I would go into "Show Last Tune Written" it would also say "Custom Tune". I recently got a new custom tune. Connected the Diablo to my computer and loaded ...

If I had the check engine light turned off in a custom tune due to having off road pipes, would that prevent the check engine light from coming on in the event of a misfire or other engine troubles?

U7146 fully up to date
1998 Ford Mustang GT

My car a few weeks back starting idling poorly. It ONLY runs happens at idle and seems to be worse when the motor is cold. Once it has been running roughly 20 minutes my idle issues seem to go away. It is so subtle though that you have to have the radio ...

Hey,

Just got Steeda UD pullies on the car. Is there any reason to get my tune adjusted? Is it worth it?

Also, I am planning on doing a PI Intake swap (only the intake, not the heads/cams). Would it be worth getting a new tune or adjusted tune afterwards?

Thanks for the time and help!!

Hey Guys,

I've tried searching the web for Diablo Tuner stickers to display in a window or something. Anyone know where I can score this? Thanks!!!

98 Ford Mustang GT
Predator U7146

Hey Guy and Gals,



Has anyone here replaced their stocker with this setup on a non FI car? What were your experiences? I know it will need to be calibrated for my 98 to run properly, but is this something I could send (data logging results) to Tuning SuperStore ...

Hey Guys,

I have 98 Mustang GT AUTOMATIC. The entire powertrain is stock. On my Predator under the Shift Firmness settings I have the following choices
Part Throttle 1-2
Part Throttle 2-3
Part Throttle 3-4
WOT 1-2
WOT 2-3
WOT 3-4

Under each choice the meter is set to "Stock". I rarely beat on the ...

Hey Guys,

I recently updated my Predator U7146 to the latest verison via this site. This update added the 87 octane tune and the 93 Diablo performance tune when originally it only offered the "performance tune".
I've noticed that some options are now missing though after the update in the tune ...

98 Ford
Mustang GT
Predator U7416
Not Sure What the Current OS version on it is.

I just got my Diablo last night and I'm new to the tuning scene so please go easy!!! I'm a Network/Computer Technician, but this is a bit different.

Should I Use the Diablo 93 Octane Performance Tune If I Still Have 1 ...