4Runner4Leon
Senior Member
Your mpg changed after cleaning the MAF sensor? I’d be happy if I got better than 12 mpg lol. Then again, it’s a tank so it explains a lot. I am always skeptical about the whole cleaning MAF. Feel like most people have issues. :witch:
I cleaned my MAF sensor and saw an increase in mpg of... zero. Shrug. Maybe in some cases the MAF is the culprit, but mine looked fairly clean to begin with, so predictably cleaning it made no difference.
I think the same applies to all "incredible increase in mpg!" posts here - yes, if a particular item was particularly neglected or worn (MAF, spark plugs, injectors, O2 sensor, etc), then yes, cleaning/fixing that item will help with mpg. But if yours are not neglected/damaged, then I would not expect an mpg gain by simply replacing them.
Don't get me wrong, I am also going through all these possible culprits to see if I can improve my mileage, but based on my experience to date (i.e. zero improvement), I am not expecting any miracles. That BG 44K additive is my next step, but I am not holding my breath.


