Flashing a tune problems?

[mikabl]

So, I flash a tune and my car starts to stumble and miss, acting real crazy. I talk to a mechanic at work who tells me to reflash the tune two or three times EveryTime I flash a tune. he said that sometimes the new tune doesn't fully overwrite the old one causing issues.

I flashed the tune 2 more times and the problems did indeed go away.

Is this known in general? or is there another explanation?

Mike

 

[BoostBumps]

I have no idea as to why your having issues flashing?

I've never needed to re-flash any of my new tunes more than once and I've easily done over a 100 reflashes to date...And have never had any issues loading any of them either...

That said...Your first flash should take without issue and reflashing a few times should not be a requirement for it to upload properly...

Sorry I can't be more helpful as to why your needing to reflash a few times....

[HR][/HR]

BTW...are you making a point (as instructed) to turn off both climate control (fan) and headlamp / auto light before flashing?? Not sure if that would make any difference but worth a try...

 

[Hijinx]

I don't even turn off my auto headlamps and with at least 100 reflashes I've never had a problem. It sounds like a problem with the tune.

 

[mikabl]

It sounds like a problem with the tune.

I don't know, after flashing the same tune again the issues went away. I also shut off everything before I flash



/edit

This car did hit a deer last year and have a spanking brand new long block put in at a dealer. I felt the car was "different" and a bit quirky afterwords, but repeated trips and complants to the dealer never resolved anything.

 

[koozy]

is it an Accessport or another flash tuner?

 

[mikabl]

It's a Cobb.

 

[koozy]

you're the first I've come across with that kind of issue, i've lost count of the number of times I've flashed and there's never been a hiccup.