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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / July 2007MAF in backwards
what sort of problems would I experience if the Mass Air Flow sensor is in with the arrows pointing the wrong way? I just found mine in wrong and I am experiencing intermittant poor acceleration when the engine is hot on a hot day. I haven't driven it enough (now that its in correctly) to know for sure if its better now. > what sort of problems would I experience if the Mass Air Flow sensor > is in with the arrows pointing the wrong way? I just found mine in > wrong and I am experiencing intermittant poor acceleration when the > engine is hot on a hot day. I haven't driven it enough (now that its > in correctly) to know for sure if its better now. Engine won't run because the cone shuts off the airflow. > box...@sasktel.net wrote: > [quoted text clipped - 5 lines] > > Engine won't run because the cone shuts off the airflow. it actually runs no differently when its in backwards >> box...@sasktel.net wrote: >> [quoted text clipped - 7 lines] > > it actually runs no differently when its in backwards Seriously, what are the arrows for?  Signature"Liberals used to be the ones who argued that sending U.S. troops abroad was a small price to pay to stop genocide; now they argue that genocide is a small price to pay to bring U.S. troops home." -- Jonah Goldberg > box...@sasktel.net wrote: > >> box...@sasktel.net wrote: [quoted text clipped - 16 lines] > is a small price to pay to bring U.S. troops home." > -- Jonah Goldberg the arrows are for direction of air flow. it makes no difference in my 1997 suburban with a 5.7 > > box...@sasktel.net wrote: > > >> box...@sasktel.net wrote: [quoted text clipped - 19 lines] > the arrows are for direction of air flow. it makes no difference in my > 1997 suburban with a 5.7 It depends on exactly what kind of MAF sensor you are talking about. A hot wire sensor won't care which way the air flows. A mechanical type may very well block if the flow pushes the cone/diaphram or whatever closed instead of open. SignaturePaul Hovnanian mailto:Paul@Hovnanian.com ------------------------------------------------------------------ Relax, its only ones and zeros! On Jul 29, 2:19 am, box...@sasktel.net wrote: > > box...@sasktel.net wrote: > > >> box...@sasktel.net wrote: [quoted text clipped - 19 lines] > the arrows are for direction of air flow. it makes no difference in my > 1997 suburban with a 5.7- Hide quoted text - Now that you've mentioned a make and model we can continue. I haven't looked at that style in quite a while, but I don't think that it has any (significant) asymmetrical airflow paths inside. Also it is unusual in that it *can* be turned around. I still wouldn't use it backwards unless it was for some sort of testing. The MAFs I see on a daily basis can't be installed backward in their air boxes. Furthermore, there is a designed in 'windbreak' for lack of better terminology that would surely interupt intended airflow patterns around the two sensor elements if it were oriented wrong. Toyota MDT in MO |
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