Factory HP tune speedometer indications.

sheriffray · Post by **sheriffray** » Thu Feb 01, 2007 4:25 pm

2002 Mustang GT w/3.73 differential gears, Predator U7146 r50d.
When loading the Factory HP tune (with Axle Ratio or Tire Size parameters modified) the tune loads, but there is no change in the speedometer indication. When loading the Diablo Tune modifying these parameters does affect speedometer indication. I would like to be able to use the Factory HP tune with modified parameters. Can you help?

Post by **mikel** » Thu Feb 01, 2007 5:53 pm

Ok, I think I can help you here. It will be a bit involved, but not impossible.
What you wil lneed to do is save a copy of your original backup file to your PC.
Then, you will import this tune from your PC to your Predator as a custom tune.
Once the tune is loaded as a custom tune, you can modify this tune however you like through the Predator, without applying any of our power tuning.

Let me know if you need any help with this.

Thanks

sheriffray · Post by **sheriffray** » Thu Feb 01, 2007 7:19 pm

Thanks. That helps. I'll let you know if I run into any problems.
Gerald

Craiger77 · Post by **Craiger77** » Sun Feb 04, 2007 10:36 am

Gerald did this fix your your problem? I am having the same issue and I'm at the point where I'm about ready to sell this thing!!! All I want to do is fix this speedo. (I dont want to use the canned tune)

Post by **mikel** » Sun Feb 04, 2007 3:40 pm

Craiger77 wrote:Gerald did this fix your your problem? I am having the same issue and I'm at the point where I'm about ready to sell this thing!!! All I want to do is fix this speedo. (I dont want to use the canned tune)

This will work for you to correct the speedo!

Thanks

Craiger77 · Post by **Craiger77** » Sun Feb 04, 2007 4:01 pm

Mike, I think we are on the right track. I've aquired all the cables I needed and exported the factory tune. When I import it back to the predator I get a "File format not Recognized." message on the predator and download complete message on the computer. FYI The file name for the factory tune is - rvaf1t4.frg - Is this correct or did I goof something?

Post by **mikel** » Mon Feb 05, 2007 10:33 am

Craiger77 wrote:Mike, I think we are on the right track. I've aquired all the cables I needed and exported the factory tune. When I import it back to the predator I get a "File format not Recognized." message on the predator and download complete message on the computer. FYI The file name for the factory tune is - rvaf1t4.frg - Is this correct or did I goof something?

OK, we are still talking about a U7146 here correct?
If so, make sure you have 57600 set as the baud rate and you have the proper COM port selected.

Thanks
Mike

Craiger77 · Post by **Craiger77** » Mon Feb 05, 2007 10:35 am

- Update -

I figured out the import "file not recognized" problem. I had to unclick the data compression check mark at the top and the Predator took it with no problems.

Now a new problem. the factory imported tune now shows up as "Custom tune" on the predator and I installed it. However, after driving the car, the speedometer is still off by 15 mph. Set the gear ratio on the custom tune to 4.10's but it doesn't seem to have fixed the speedo.

Any suggestions?

Craiger77 · Post by **Craiger77** » Mon Feb 05, 2007 10:38 am

yes U7146 2001 mustang gt conv.

Post by **mikel** » Mon Feb 05, 2007 11:20 am

I do not see why this will not work, but I have an answer....
email me a copy of your original backup file to [email protected]
I will have it modified for you and send it back to fix the speedo only for your 4.10's.

Thanks

Craiger77 · Post by **Craiger77** » Mon Feb 05, 2007 2:55 pm

I'm baffled too.

Thanks I'll send it as soon as I'm home from work.
Thanks

Craiger77 · Post by **Craiger77** » Mon Feb 05, 2007 5:10 pm

File sent!

Craiger77 · Post by **Craiger77** » Thu Mar 08, 2007 6:49 pm

Mike,

How's it going? I sent you my tune some time ago, but I never heard back from you. I would really like to get this speedo fixed.
Thanks again,
Craig

Post by **mikel** » Thu Mar 08, 2007 10:02 pm

Craig, I'm sorry but I have not recieved your email.
Please resend it to [email protected] and I'll get you taken care of.

Thanks

sheriffray · Post by **sheriffray** » Fri Aug 31, 2007 7:35 pm

Mike,
I just got around to trying the original backup file to custom tune file transfer, but it did not solve the speedometer indication issue for me either. Should I email the file to you?
Also, when data logging/viewing with the Predator Performance tune LONG FT1 and LONG FT2 stay at 0%. They do not change at all. All other data is normal. Does the Performance tune use Long Term Tables?
Thanks,
Gerald

Factory HP tune speedometer indications.

Factory HP tune speedometer indications.

RE: Factory HP tune speedometer indications.