Cleaning the MAF (MASS) Sensor

[Sky Miner]

I allso had a look at the sensor, and yup heres the results
Up stream:


Down stream, after 30000klm you can see the gray build up of...um...gunk? I am running the factory filter and dont do that much off road work.


After the clean,not bad havent notice any 'masive' improvement in power or anything but its gotta be a good thing though.


Thanx again to NTN members for another mod fix would'nt have known about this one at all
Cheers guys

[Froggy]

I also cleaned mine recently. No noticeable difference in performance or fuel consumption but it certainly sorted the increasing amount of black smoke on acceleration.
I was kinda enjoying smoking people out off the lights

[Sky Miner]

yea some of the benefits of an oil burnner

[Froggy]

Just tromp on that accelerator and watch a dozen people reach for the recirc control!!! Love it!

[SecondEye]

Just wondering how much of that contamination is from the egr. The blackness suggesting carbon not dust.

[Brett05]

Just wondering how much of that contamination is from the egr. The blackness suggesting carbon not dust.

To my thinking, there shouldn't be any contamination from the EGR, as the MAF is upstream of the inlet where the EGR is plumbed into the intake hose.

[helicoptercow]

The maf sensor is located on the edge of the air filter box, anout 8 inches before the egr rejoins the inflow

[burnah]

Could small amounts of the exhaust gas be sucked back towards the filter from the point it enters, in eddy currents as the intake flow changes?
I wonder how finely MM R&D engineers would tune something like that. I guess it's possible that aftermarket filters or other mods could alter the characteristics of the flow in a way that causes the system to behave differently than engineers had anticipated.... Or would the computer just compensate for everything?

[borngeek]

you guys are thinking that exhaust gas get pushed backward from the outlet side of the throttle body, back through the inter-cooler and then through the positive pressure of the turbo and then toward the airbox and MAF sensor... wow.

that is a massive diesel backfire......

//lets say no, ok? The mess on your MAF sensor (oh and intake temp 1 probe) is from particles that pass through the filter. Just clean it, periodically.

[Mooons]

The mess on your MAF sensor (oh and intake temp 1 probe) is from particles that pass through the filter. Just clean it, periodically.

X2

[Kegsy]

The maf sensor is located on the edge of the air filter box, anout 8 inches before the egr rejoins the inflow

Thats the PCV, nothing to do with EGR...


What Geek has written is the go. Its just fine particles that have made it past the filter.

[burnah]

Cheers guys
A perfect example of why NTN is brilliant!
I always think too much on Sundays... especially about things I know little about

[SecondEye]

friggen got the PCV and egr mixed up again. *slaps forehead*

[tritonmea]

Nice trick ...
Looking forward to the results on Sunday after 40k KM ...
Thx for info guys ...

[perko]

Cleaned, will be interesting to see if it helps fix the black smoke issues I have
Before...

Have to admit I was surprised how dirty it was, 17000ks in a year with the same stock air filter and no appreciable dust or dirt in the intake
After...

[fridgie]

Cleaned, will be interesting to see if it helps fix the black smoke issues I have
Before...

Have to admit I was surprised how dirty it was, 17000ks in a year with the same stock air filter and no appreciable dust or dirt in the intake
After...

It always amazes me how little it takes for these things to not function properly Bring back the good ol days of valves and flaps

[GLX-R Alex]

Thought I would give mine a clean today while I had the hood up.

Filthy. Standard air cleaner

[smouch1975]

I cleaned my MAF sensor today. I won't bother with a pic, it was very clean, given 25000 KMs from new.

I was a little disappointed to find the hot-fix for the turbo pipe had not been completed, as specifically requested at my last Mitsi service.

Of note my intermediate oil change was done by a local guy, and we had to check the filter number 3 times as mine had fitted a Paj filter.

Time for a new stealer I think


---
I am here: http://maps.google.com/maps?ll=-32.300727,115.712457

[Lin1952]

Cleaned my Maf for the first time today (Supercheap CRC $25). 116,000K, always standard filters, has fixed the black smoke issue - good post.

[SecondEye]

Lin careful using that non-MAF cleaning fluid. I expect the CRC will leave a layer of thin oil on the sensor that will cause damage or early fouling.

[Cowboy Dave]

CRC make a MAF sensor cleaner - I have a tin somewhere. I'm sure that's what he meant.

[chick_magnet_0001]

yep what head said... ive got the same crc MAF airflow sensor cleaner... and yess the same price..almost fell over when i bought it

[Cowboy Dave]

yep what head said... ive got the same crc MAF airflow sensor cleaner... and yess the same price..almost fell over when i bought it

Who is head?

It would bother me greatly if when you thought of me you thought of head.

[chick_magnet_0001]

whatever dave... another attempt at being funny with a simple typing mistake......your a wank

[gregned]

Reading through this thread it seems that people are getting the AIT ( air intake temp) sensor with the MAF. The Denso module contains both the AIT ( the bead object I see in everyone's pictures) and the MAF (the two tiny cylindrical shaped objects in the black tube)
Greg