Hi guys and new to all this turbo stuff so bear with me. I have been doing alot of reading and know that once turboing my 420a I would have issues with fuel delivery and that you have options like ms, some other tuning, the fmu/missing link/or fcd. Now I live in PA and have emissions and inspection and found that as long as CEL isn't on it will pass emissions but would adjusting the ratios (or whatever they are called) within the ecu or buying a new one that is programmed with all the specs you will need be considered tampering? I just don't want to put out alot of money for something that will not be useful in regards to emissions/inspection pass/fail.
#5359, "RE: Ecu tampering or not?" In response to Reply # 1 Sep-13-11 01:23 PM by junkyarddsm
Your best bet would be to run the ms system as a piggy back not full standalone. Their is a write up on this site that tells you how to install ms while still keeping your stock ecu so when inspection time comes around you can disconnect and look stock again to pass then hock it all back up once it is over.
I live is CA so I fell you on the emissions part. My car had no codes but burned a bit of oil so it failed. Not sure how strict your emissions are in PA but just remember its only once a year you have to pass right. Also here is the link to the write up.