Quote:
Originally Posted by Zygote55
I have to take my 2011 135i to a STAR station in the next couple of months. I've been running MHD, but uninstalled it to prepare for the SMOG test. I noticed that after uninstalling MHD and checking for codes it displays the checksums... which don't match. I'm concerned that I'm going to run into the same issue as you. Has anybody actually had recent luck uninstalling a tune and passing SMOG?
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Did you uninstall and install the tune you originally backed up? I have a theory the issue is because the original backed up tune isn't being used and instead a "stock" tune provided by MHD is being used (somebody else mentioned this might be the issue somewhere as well).