There's been a few posts here, some by me, some by others, in regard to poor gas mileage. I did a search and found that there were some people having issues with their C&L mass air and that the solution, in some cases, has been to rotate the sensor in a certain direction to resolve the issue. This appears to be more common on cars that have the fenderwell cold air units with the K&N filter installed, like mine. If this is possibly the case, which direction would I want to angle my sensor to lean out the fuel mix, toward or away from the engine?