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I can't seem to find the MAF sensor in my 2007 TLS. ODB2 can read it, so it's gotta be there somewhere. I can't even find it in the parts diagrams on part sales sites. Does it exist independently or part of something else?
Correct me if I'm wrong, but I don't think Honda J-Series engines use a MAF sensor; my understanding is the J-Series uses a MAP sensor.
MAF = Mass Air Flow sensor
MAP = Manifold Absolute Pressure sensor
That's what I thought, BUT, the ODB2 does give a value for MAF readouts in lb/min, separate from MAP readouts in kPa. The two figures get lively updated when driving, and are independent of each other. That leads me to believe that there is a MAF somewhere, perhaps.
As clarification, yes, the 3G TL uses a MAP sensor, but some Honda/Acura vehicles with the J-series use a MAF sensor. The 4G TL, TLX and 3G MDX use MAF. I'm not sure why they switch it up.
Thanks to all of you clarifying for a newbie like me. I'll be cleaning the MAP this weekend. Am I correct to assume that I could just use a MAF sensor cleaner/spray to clean the MAP (avoiding the electrical contacts, of course)?
buy a new one, cleaning the old one won't solve you a thing. Beside our TL is drive by wire, any fluid contact and you will be buying a new throttle body assembly.
Thanks to all of you clarifying for a newbie like me. I'll be cleaning the MAP this weekend. Am I correct to assume that I could just use a MAF sensor cleaner/spray to clean the MAP (avoiding the electrical contacts, of course)?
Correct, the cleaner should be fine for either sensor. I used the same cleaner on my MAP sensor some time ago with no negative results.
buy a new one, cleaning the old one won't solve you a thing. Beside our TL is drive by wire, any fluid contact and you will be buying a new throttle body assembly.
I'm curious as to the reason why you think that cleaning the old one wouldn't solve a thing.
Lol! ok, an explanation is in order. I was having the common 'hesitation' issues under light-to-medium throttle. I had a K&N replacement filter and figured that the MAP might have gotten some oil on it. The MAP looked clean visually but I sprayed it with the cleaner anyway. No change in the hesitation (no worse, no better). What i finally discovered was the premium gas i was pumping was the issue. Here in the MidWest most premium contains Ethanol. After i switched to non-Ethanol premium the hesitation issues went away.
Lol! ok, an explanation is in order. I was having the common 'hesitation' issues under light-to-medium throttle. I had a K&N replacement filter and figured that the MAP might have gotten some oil on it. The MAP looked clean visually but I sprayed it with the cleaner anyway. No change in the hesitation (no worse, no better). What i finally discovered was the premium gas i was pumping was the issue. Here in the MidWest most premium contains Ethanol. After i switched to non-Ethanol premium the hesitation issues went away.
Hmmm, all we can buy here in New England is E10, regardless of grade. I never have any hesitation in my TL.
11-07-2017, 02:54 PM
