U7146 V.7r50d CALID RVAT6
01 GT Mustang Vert. Auto
3.73 Gears
Dragon Plenum
Dragon 75 TB
Tuneable CAI
Flowmaster Cat Back
FAST Wideband A/F Meter
Best ET 13.9

This is my third and last post asking for some help.
First post on Aug 9,08
Second post on Aug 14,08

First off I'm very pleased with the ...

Need some help PLEASE.
01 GT U7146 V.7r50d
Predator will not Datalog LTFT's using Predator Performace Tune. No problem data logging LTFT's using Factory Original Tune.
Thank You
Dave

So you MPH must have dropped to loose the 2 tenths probably from the lean A/F you where running. Yeah and the wideband data is nice too. No more burned hands from having to check your plugs for proper jetting.
Yes, MPH did drop also. The wideband is a nity tool to have. A lot of things have ...

Concoursd...Thanks again for your feed back, yes I don't think I have problem with my Tune or LTFT's. Car runs just to good with the few mods I done to it. I would like to be able to log the LTFT's values to see what they look like and learn more about this area. The Predator is a great tool, it ...

Hey guy's, I need a little help. I have a U7146 with v.7r50d serial 20009fa CALID RVAFAT6
01 Mustang Gt Auto Vert
Dragon Plenum
Dragon 75 MM TB
Tunable CAI
3.73 Gears
Flowmaster Catback
FAST Wideband A/F meter

Question, Predator will not datalog or display LONG TERM FUEL TRIMS using Performance ...

i agree that you were running lean but if you have faulty sensors or testing procedures then it is garbage in garbage out.

How old is your wideband sensor? Is it functioning properly? do you run race gas often? does your street gas have ethanol in it (all california gas oxygenated and has 10 ...

Question, I have a U7146 and a 01 GT. When data logging what do I look for to make sure the MAF Transfer Function rate is working right. The reason I ask is when race at a track that is 600' higher in elevation I lose about .25 tenths in ET. ,at the sea level track I get my best ET's. I did data ...

the LTFT's are a long term average so it is best to have a minimum 20 minute drive when the vehicle is warmed up and entered into closed loop (not cold start mode). Keep speeds at about 60-70 mph. Use cruise if possible. The issue you have is that you should think about doing this in the high ...

In theory, the computer should adjust to the change in barometric pressure but really datalogging your LTFT's will give you a better idea if the computer is adjusting properly or not or if there is something you can do tune wise to optimize everything.

Question, When datalogging LTFT'S the values ...

I believe you are correct. Living in Md you have the best of both worlds the Ocean and Mountains just hours away. I live close to sea level area and race most of time at a sea level track, but about twice a year I go to a track near Western part of State with the higher elevation, is only about a ...

Question, I have a U7146 and a 01 GT. When data logging what do I look for to make sure the MAF Transfer Function rate is working right. The reason I ask is when race at a track that is 600' higher in elevation I lose about .25 tenths in ET. ,at the sea level track I get my best ET's. I did data log ...

The changes that really help my 01 GT Auto Vert get into the High 13's at the track was..
1. Predator performance tune ( Just leave it in drive and let the trans take over)
2. 3.73 rear ( should had gone to 4.10)
3. Dragon Plenum
4. Dragon 75 MM TB
5. CAI ( Using the Tuneable intake right now )
6 ...

Question on my U7146 for my 01 GT Mustang.
Before I download Custom Tune from PC using DSDownloader to Predator must I reintall stored factory original tune first. Right now I running the Performance tune.
Thanks
Dave

Predator say's Faults Cleared when I push the clear codes button.But all codes are still there or they just returned real fast.
Please Help

christina wrote:Try clearing the codes and see if they return.

Predator say's Faults Cleared when I push the clear codes button.But all codes are still there or they just returned real fast.
Please Help
Dave