Do I have to start over with new GUFX?

Vehicle specific forum for tuning the Foxbody Chassis Mustangs utilizing decipha's GUFX Strategy

Do I have to start over with new GUFX?

Unread postby kendawg73 » Thu Jun 20, 2019 6:49 am

I installed the tunner pro and started messing around working on a tune trying to figure this stuff out, so when I get ready to start my car hopefully in a few months it will run... I started this a few months back, but got busy with other stuff and haven't messed with it... I notice there was a new GUFX and A9L2 tune file up for download from May... so do I have to start over with my tune with the new gufx and a9l2 file, or do I just need to replace the ones in TunerPro with these new ones and continue to work on the tune I started?

Also I haven't got the QH yet, waiting tell I get close to firing motor... but I have the ECM out of car, can I install the tune and communicate with the ECM with it out of the car (didn't know if the QH and would work just on the USB power? or does it have to be in car to get power?
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Re: Do I have to start over with new GUFX?

Unread postby decipha » Thu Jun 20, 2019 9:39 am

theres no need to ever start all over simply continue where u left off

in the newer a9l2 i added some inferred fan code and a few other minor tidbits can you do a compare in tunerpri and copy over the features you desire

no the ecu has to get power to turn on, the qh will work out of the ecu tho
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