what is this? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Ranger_Man · 11-18-2002, 11:12 AM

i was just looking at my engine bay and i noticed this and was wondering what it does (the thing in the middle of the light). sorry about the picture quality.

nissan's_fury · 11-18-2002, 11:23 AM

I am gonna say mafs if i am looking at what i am supposed to be looking at.

uiuc240 · 11-18-2002, 11:40 AM

Ummm, if he doesn't know what it is, he's probably not going to know the acronym.  MAFS stands for Mass Air Flow Sensor, and it's the thing that measures how much air is going in to your motor.  It uses a hot wire to see how much air is flowing by, and by how much the wire cools down, it translates that into a voltage.  That signal is read by the ECU (Engine Control Unit) which in turn sends information to the fuel injectors about how much fuel to spray.

Don't take it out.  You need it <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt='

'>  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt='

'>   And if your car starts to run crappy, add another ground wire to that thingamadoohickee.

Eric

Ranger_Man · 11-18-2002, 12:47 PM

yea thats what i figured. i noticed its made by unisia jecs. our radiators are made by calsonic, as are our cats. interesting stuff.

11-18-2002, 11:23 AM	#2
nissan's_fury Leaky Injector Join Date: Jul 2002 Posts: 128 Trader Rating: (0) Feedback Score: 0 reviews	I am gonna say mafs if i am looking at what i am supposed to be looking at. __________________ In the land of Rice, the man with a boxed H is king.

11-18-2002, 11:40 AM	#3
uiuc240 Nissanaholic! Join Date: Apr 2002 Location: Naperville, IL Age: 46 Posts: 2,093 Trader Rating: (0) Feedback Score: 0 reviews	Ummm, if he doesn't know what it is, he's probably not going to know the acronym.  MAFS stands for Mass Air Flow Sensor, and it's the thing that measures how much air is going in to your motor.  It uses a hot wire to see how much air is flowing by, and by how much the wire cools down, it translates that into a voltage.  That signal is read by the ECU (Engine Control Unit) which in turn sends information to the fuel injectors about how much fuel to spray. Don't take it out.  You need it <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=''>  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=''>   And if your car starts to run crappy, add another ground wire to that thingamadoohickee. Eric __________________ 2002 Mazda Protege5 1989 S13 w/SR20DET (sold)

11-18-2002, 11:12 AM	#1
Ranger_Man Leaky Injector Join Date: Oct 2002 Location: austin, tx Posts: 91 Trader Rating: (2) Feedback Score: 2 reviews	i was just looking at my engine bay and i noticed this and was wondering what it does (the thing in the middle of the light). sorry about the picture quality.

11-18-2002, 12:47 PM	#4
Ranger_Man Leaky Injector Join Date: Oct 2002 Location: austin, tx Posts: 91 Trader Rating: (2) Feedback Score: 2 reviews	yea thats what i figured. i noticed its made by unisia jecs. our radiators are made by calsonic, as are our cats. interesting stuff.