UKMyers

Okay I am looking in my Chiltons and there's an exploded view of where the MAF is. It looks like it is in the intake hose just behind the airbox. When I looked at mine I didnt see crap there. Is it inside somewhere? I remember taking that hose clear off when I changed my plugs last time.. Hmm can someone confirm where the heck my MAF is on the 3.0?? I would like to clean it up and see if it helps my mileage. I am only getting like 230 to a tank, seems to run great though.

EDIT: Upon closer reading the chiltons says this component is found on the 2RZ-FE, 3RZ-FE, 5VZ-FE and 1FZ-FE...............hmmm I don't see they 3VZ-E in there anywhere do you guys? Geez will I ever feel dumb if the 3.0 doesn't even have a MAF...Hahaha

MonkeyElvis

Hey man, looking at the unit i have laying around, looks like the sensor is actually in the front of the unit. it looks like a small round cylinder (white plastic) with a teeny pinhole near the top.
Hope that helps. i can send you a pic if you'd like

95_4X4Runner

The 3V-ZE has a flapper type Air flow sensor, so there's nothing in that area to clean like on the third gen, as far as I know. Our air sensor is pretty much a spring loaded flap on a hinge, with a variable resistor attached at the top, so the resistance changes with the amount of flap opening.

I figured out this tip with my Supra, about cleaning the throttle body.

Remove the hose from the TB (Throttle Body), and clean as much gunk out as you can with TB cleaner, an old toothbrush, and rags.

The engine won't run with the intake tube disconnected, because no air is flowing past the airflow sensor.

But, there's a way around that.

To clean the TB/intake better, have someone reach in through the air filter and push on the flap on the airflow sensor a little bit, and start the engine. Note: women's smaller hands were engineered for this

Then, you can spray cleaner in the TB while the engine is running, and clean things a little better/deeper.

Also, does everybody know about messing with the tension of the flapper spring? If you loosen the tension, it'll richen the mixture, and tightening will lean the mixture. (This is from memory)

Carefully cut the silicone seal around the black cover on the airflow sensor and pry off, then mark the position of the gear in the stock position, so it can be returned if needed. Then, carefully loosen the screw that holds the gear in place, and loosen the gear a couple teeth to richen the mixture, and CCW to lean it. You should never move it more than 4 to 5 teeth in either direction.

I messed with it on my Supra, but not yet on the 'runner. I'm waiting until I find the time to install my Autometer A/F ratio gauge.

UKMyers

Thanks for the info guys. I don't feel so stupid now..Hahaha Elvis I sent you a PM.