Basically I made a decision to clean my Maf sensor today, after spotted all the dirt grease oil when took it off for installation of the 3 ports yesterday.

My question is will this really ruin my current map as it was mapped with a dirty Maf sensor. At the moment I am still waiting for it to get dry before I plug it back no. But I should have really think twice before I carry out the cleaning, might not be a good thing at all and could ruin the map we spent hours to put together..

I am one of those worrying type so Please advice..