tried asking my fellow 5.5 guys and never got an answer..maybe you guys can help..

I plan on getting my car dyno'd in the next few weeks and was planning on getting the TS flash afterward. If I provide them with my a/f ratio, can they tune the ECU for for optimum power? Or should I just get the standard flash they offer?

 

Provide run-files and they will get you a more precise tune.

 

I just went there. I had them tune and dyno and got lots more power midrange. Im having trouble t idle and just off idle and my CEL got triggered. Tadashi thought it was my spark plugs but it wasnt.

 

Ooo dues? CEL is back... Uh oh...

 

did you pull the code? what was it?

 

AF ratio or runfile, and mod list.

 

Code was engine misfire. When I was at the muffler shop, I found an O2 sensor wire melted on the header. I tucked it back up, so we will see if that threw the code. I noticed it running poorly at idle and when I cracked the throttle open slightly.

 

I never gave them anything and they still gave me a, what I consider, a good tune.

Dues, get me some more Cipher files, still waiting

 

What do you mean by "standard flash"?

I thought their AF adjustment is all customized to your mods, current AF, etc.

IIRC, they have a F-Spec flash which is usual TB opening, rev limit, etc. plus AF and L-Spec which is the usual items but with no A/F.

 

idk thats why i am asking. if the car was stock would they tune the ecu differently than a car that has headers/intake/exhaust? what if i dont have run files for them to go by?

 

nmex, I sent you files. I have a recent one I can send