trans_am7935

iTrader: (15)

i cleaned my MAF and TB today cause my idle was fluctuating when transitioning from open loop to closed loop, and WOW...did it make a huge difference. the idle is so much better, the O2 readings are better, still a little ehhh, but runs good. didn't realize how dirty that thing was.

my idle improved (slightly disappointed cause now it is a little less choppy)
exhaust smells better (no cats)
better acceleration under the curve

so to anyone that has over 50K on there motor, i highly suggest this.

fuelslut2883

yep, for future reference, a good way to tell if your MAF is bad or malfunctioning is tapping on it gradually and listen for any hesitation in the engine. Also if you unplug your MAF and your engine runs better, then definitely time for a replacement lol

RedHardSupra

iTrader: (1)

If you have a scanner, gather a lot of data with Dynamic Airflow (not MAF Airflow, that's just a lookup) and MAF Frequency, export the data, open it in Excel, and do a scatter chart of MAF Freq vs Dynamic Airflow, and you will see the main trend that's gonna look like your MAF calibration, but there's also going to be noise all around it. Lots of noise means clean your airfliter/MAF.

joecar

You might want to check if your lid/filter is leaking (how the MAF got dirty).

trans_am7935

iTrader: (15)

i bought the MAF used off a 2003 vette. it is a 85mm one and i never cleaned it. i also have a K&N filter and those tend to let some stuff by.

bad_408_vert

iTrader: (6)

Yep, mine was so bad it made the car stall and act like it was choking for fuel.
Car stalled 3 times because the MAF Sensor was failing.
I finally unplugged it and drove the car to a parts store to pick up a new sensor.

ANTICOP RAM AIR

iTrader: (7)

I had bird feathers and a foot in my MAF when I bought my car... got it cheap cause it ran like ****... cleaned her throat and she was ready to rock and roll... (dont ask me how my bird ate a bird...I have no clue)

trans_am7935

iTrader: (15)

i killed a bird sucking it in my WS6 hood in Texas. had to replace the screen on it and fix the chip in my hood. how your got past the filter i have no idea

ANTICOP RAM AIR

iTrader: (7)

it had a dirty *** K&N and factory lid when I got it.... I did have a chip in the nose of my hood too.. haha. Man I wish I had taken pictures of it... it was priceless