danglerb

Rubbing alcohol has glycerin which leaves a residue, disinfectant I think is diluted with just water.

aviography

Try Colemen camping fuel, it's naphtha, my go-to solvent that is strong enough to clean most oily type residue, but not strong enough like acetone or lacquer thinner which can damage plastic and painted surfaces.

siscogts

I am in reality doing a copy-paste of what I did saturday to my car, new fuel line and then MAF cleaning.
"While I was doing fuel hoses I re-cleaned the MAF Using what You call " rubbing alcohol":

this is the "before picture( you can see some black dirt here and there):



you can see that wire was not 100% clean,and so was the central sensor...

Sprayed the rubbing alcohol and let dry, I put a clean rag before I started spraying .
NExt picture shows how dirty the MAF was, that was the black dirt dropped from the inner of the MAF:



this is the MAf wire and sensor after:


ù

Now hot wire and sensor are really shiny.
protection grills were completely blackened from dirt....Now the engine is far better and runs smoothly, feel very promptly to right pedal ...."

the isopropyl did not let residue whatsoever.Even with a protection mask, the vapours of isopropyl gave the same effects of ...well....my face expression was something between janis Joplin and jim Morrison ...So be frugal with that.

Francesco From Italy

siscogts

With steel wool and isopropyl... Cleaned oxide and dirt, without removing the plating..

Cuda911

I work with many aerospace and other high-tech companies, and most use IPA (aka isopropanol, isopropyl alcohol, iPrOH, sec-Propyl alcohol, and others) for circuit board and other electronics cleaning. Reagent-grade is the best for this purpose.

I like hexane for this purpose. Warning, highly flammable.

.
Randy, I think you meant to post this, that wonderful old staple of college life:
.

danglerb

Only thing I use on the MAF is CRC MAF cleaner, cheap enough to remove any value from guessing.

siscogts

searched for CRC in Italy,doesn't sell this product, I think I will get it in an other way...
if isopropyl works wonders like last saturday, I will add this cleaning procedure in my annual check.
Francesco