After doing a carbon clean, plugs, & finalizing my detailing today, I was looking to make any available work for myself & thought that I hadn't done this since I've owned the car. Wow, what a difference... I'd recommend everyone who hasn't done this give it a shot.

It took me 15 minutes. In my case with the K&N, I had to deal with two clamps and two screws. Grab your electronics cleaner, pull the MAF sensor & hose the needles inside and outside the plastic. If you're looking for a DIY, there's quite a few posted, here's one. A fantastic improvement, particularly off the line. Highly recommended for those who aren't aware. Enjoy the weekend!!

 

Is it necessary to clear the ecu afterwards per your link? I've never done that when cleaning a MAF. Are you sure the difference you're feeling is not due to the ecu reset? Also, why even bother disconnecting the wires? Can't you just unbolt the MAF and pull it out to clean?

And, there is MAF cleaner spray dedicated to the task as well.

 

I didn't think it necessary to reset the ecu so I didn't do that (but had the week before last when I did plugs). The way it sits on mine requires removal of the intake. Because I didn't have MAF cleaner on the shelf, I found electronics cleaner to be completely sufficient - and it was. I didn't write that DIY, fyi.

 

I've cleaned my MAF before but didn't user Electrical cleaner as I've always used isopropylene in either liquid or spray.

If Electrical cleaner works that's a new one for me.

 

I usually clean the MAF periodically on cars I own that actually have a MAF. I just use the MAF cleaner they sell, couple sprays and let it dry, done

 

I was really surprised to notice as much of a difference as I did with this. The pins themselves didn't look dirty at all, however they SHINED after I used the elec cleaner.

After doing my carbon clean, plugs, having gaskets repaired (getting a possible hint of increased compression), and this, my car has never run better. I'm getting whiplash-like response without even trying.

 

Following up on cleaning your MAF sensor (which I've never done before) I ran across a few people in the thread you linked above and this from Amazon:

From Napa Website: "Do not use MAF sensor cleaners on Karman-Vortex style air flow sensors, which are found in Toyota Supra turbos, Mitsubishi, and most Lexus engines". http://knowhow.napaonline.com/know-h...our-maf-sensor

Does anybody know if we have this type of MAF sensor?

 

Karman-Vortex mafs are old school, maybe 20+ years. New cars are not Karman-Vortex mafs, safe to use the CRC cleaner for the ISF.

 

Interesting, thanks for the info...........why does it say and most Lexus engines? Wonder what type of Lexus engines they are talking about? Maybe early 90's....

 

I know 2jzge and 1uz had karman vortex MAFs. A KV maf uses a photo transistor to convert vorticies through a LED and a mirror making a voltage signal. Its important the mirror stays clean and scratch free, using a MAF cleaner would usually leave a residue on the mirror and if cleaned risked scratching the mirror.

 

Ok that makes sense why they have that warning on the MAF cleaner for Lexus vehicles

 

Did the cleaning last week. Very noticeable improvement in smoothness off the line!

 

For sure I cleaned mine last week as well big difference in how the car accelerates I'm assuming mine was dirty and not reading the air properly therefore I was probably running lean since it wasn't compensating with the correct amount of fuel especially with the tuned intake.

Considering I've never cleaned mine before I would highly recommended to clean your mass air flow sensor it doesn't take but 5 minutes to clean it I let mine air dry for a good 2 to 3 hours before I reinstalled and drove the car.

 

If you're running the OEM paper filter, this should never be necessary.

 

Agreed but the RRR tuned intake uses a K&N cone. Plus it looks cool.