Originally Posted by JHM2K

Thanks Josh.

What has me really stumped is how PERFECT the car ran for the three weeks in between the Buckhead visit and the failure. Tunes don't just "go bad"... if they work, they work.

Agreed that it's... unusual... that MB couldn't pull codes. If nothing else, they should have enough basic mechanical knowledge to be able to diagnose w/o needing Star-DAS to hold their hand every step of the way.

I mean, my car only has three mods on it -- a CAI, a pulley, and a 255lph fuel pump.

Everything else is factory.