still waiting for a call back, but here's something I found cruising around the interwebs:
Here's some info from Doug at Bamachips regarding this issue:
"This is the reason why tunes may not pass a PCM code read emissions test.
EVERY tune made starting with a base file(SCT or Diablosport) prevents the engine from doing as many tests as it normally runs in order to speed up the processor. For you computer guys its kinda like speeding up the clock speed of the processor to gain more performance from it.
The Ford PCM runs a series of tests called " Readiness Tests" on certain systems and sensors, and these tests in turn simply tell the PCM if these items are performing up to par. If not, then a code is set. These are SOME of the tests that are disabled by the tune files, and this is why when you go to a testing facility with the tunes loaded you get a "System Readiness Test Invalid" or "Not run". Not because of the rear 02's being turned off, but because of the testing for the entire emissions readiness being disabled in the PCM.
Now for the big question, how do we pass testing?
The BEST answer is to simply return your car to the stock tune and the stock intake and drive it for around 50 miles or 20-30 minutes. This will set all of the "Readiness Monitors" and allow the car to pass with flying colors, as long as there are no other issues.
Now we all know that some of us this just isn't an option, everything from off-road pipes to CMVC delete plates to supercharger installations can prevent this. There are ways around this, but for legal reasons I will not publicly announce it. All I will say is that IF you've gone with a quality dealer or know of a custom tuning dealer to go to, then we know what to do to make your car pass the PCM readiness tests. Consult your custom tuning dealer for more information on this.
Also, these tests are different. I've had customers who have reported absolutely no issues going through their local testing facilities and others who report immediate concerns, like described above. Either way these tests can be passed with aftermarket components, but remember this is ONLY the tests that check for codes in the PCM. Tailpipe sniffer tests may pass, but I cannot guarantee this."
