edsalguero wrote:Hi,
Today I bought a can of CRC MAF Sensor cleaner, but reading the instructions got worried because it states:
"DO NOT use on vehicles with a Karman-Vortex air flow sensor, e.g. Toyota Supra Turbos, Mitsubishi’s and most Lexus vehicles."
How do we know we don't have that Karman-Vortex air flow sensor in the MN?
Is it safe to use it anyway?
Don't know if there have been any physical changes made to the MAF Sensors installed on the latest MY builds of the Tritons but my own 2010 MN uses the "Platinum Hot Wire" type MAF Sensor, on which, it is safe to use the CRC MAF Spray Cleaner product.
The Karman-Vortex type MAF sensors use a different principle ie, they rely upon 'vortices' forming in the disturbed air flow over them which are then sensed by something like an opto-coupler circuit or a physical diaphragm. Sorry I can't throw any light upon which Mitsui vehicle they might be used in...?
The only proviso with using the CRC spray on the "Hot Wire" MAF sensors is that you should only use it to --gently-- spray the very fine and hence --delicate- (and very expensive) Platinum wire sensor located at the very bottom of the black plastic MAF air sensor tube. Keep in mind that you are only trying to -gently- wash off and dust or oil film contamination that -might- be on it, --NOT-- trying to 'Gerni-pressure-wash' it....
The other thing to keep in mind is that inhaling the CRC product whilst you're using it wont do much for improving your own health either, so it'd be a good idea to do the job outdoors ie, in plenty of fresh air, ie, not in the confines of your shed.
Accidentally spraying it onto your skin will cause it to quickly leach all of the natural oils out as well, so you might also risk a dose of industrial dermatitis if you're too careless in aiming it ....
Also the CRC cleaner is highly volatile and hence it will rapidly cool anything you spray it on and this typically causes moisture to condense out of the air and wet whatever's been sprayed, so when you're finished cleaning it, set the MAF sensor aside on your bench for a few minutes, to allow it to come back to room temp and for the condensed moisture to dry off before re-installing it into your air-box.
Last thing to do is give the small metal fingers inside both halves of the MAF electrical connector itself a squirt with a waterproofer and degreaser before reassembling the connector and wiring harness. Personally speaking, I like to use a spray can product called LanoTec-GP for this job. It does a far better job than WD-40 or RP-7. You can buy it from SoupyCheep for just a couple of bucks.....
Quote: "Only two things are infinite: the Universe and human stupidity; and I really am not certain about the Universe !" - Albert Einstein (1879 - 1955)