MAF Replacement

IKneX · 07-13-2011, 07:11 PM

So my CEL now comes with code 31, MAF. Can I buy the lexus sc400 maf and bolt it on without modding anything else? I found one on ebay for a pretty good price

El Supracabras · 07-14-2011, 12:17 AM

http://www.suprasonic.org/lexusriemer/lexusnotes.html = the point of this.
Short is answer yes you can and no you shouldn't. By the way you got the letters mixed up, its AFM not MAF.

IKneX · 07-14-2011, 12:23 AM

Oh yeah, I dunno where I came up with MAF

im trying to keep my motor as stock as I can, I just want everything to run 100% smooth, ill stick with the 7m AFM.

Green7mgte · 07-14-2011, 01:31 AM

you can hook up the black box. just not the honey comb w/o any ill effects.
code 31.. before you spend any money do yourself a favor and run an ohm meter from your pins and check the wires.. if you have a bad wire, replace it. Otherwise spending w/e money you did on your KVAFM is money wasted.

IKneX · 07-14-2011, 03:05 AM

K, ill check that, im assuming is in the TSRM?

El Supracabras · 07-14-2011, 03:48 AM

If your AFM fails the tests and that Lexus AFM is cheap, buy it, use the sensor and sell the housing. The sensor is the same as yours the housings are different. Just put the sensor in your 7M housing. Be sure to closely inspect the connector and wires while testing the sensor.

Green7mgte · 07-14-2011, 03:57 AM

yes the sensor or "black box" is the same. The housing "honeycomb" from the lex is for a v8 and allows 15% more air to enter the engine. Bad news if your not pushing more fuel.. results in whats called "running lean" and that will destroy your engine.

IKneX · 07-14-2011, 01:05 PM

Oh I didnt know that, Thats what I was gonno do anyway because the ebay one was JUST the sensor not the houseing. So as long as I keep my 7m houseing I can use the lexus one?

07-13-2011, 07:11 PM	#1
IKneX Stock Join Date: Jun 2011 Location: Canada, PEI Posts: 23	MAF Replacement So my CEL now comes with code 31, MAF. Can I buy the lexus sc400 maf and bolt it on without modding anything else? I found one on ebay for a pretty good price

07-14-2011, 01:31 AM	#4
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	you can hook up the black box. just not the honey comb w/o any ill effects. code 31.. before you spend any money do yourself a favor and run an ohm meter from your pins and check the wires.. if you have a bad wire, replace it. Otherwise spending w/e money you did on your KVAFM is money wasted. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

07-14-2011, 03:57 AM	#7
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	yes the sensor or "black box" is the same. The housing "honeycomb" from the lex is for a v8 and allows 15% more air to enter the engine. Bad news if your not pushing more fuel.. results in whats called "running lean" and that will destroy your engine. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

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07-14-2011, 12:17 AM	#2
El Supracabras 3" Exhaust Join Date: Feb 2010 Location: Chicago Posts: 240	http://www.suprasonic.org/lexusriemer/lexusnotes.html = the point of this. Short is answer yes you can and no you shouldn't. By the way you got the letters mixed up, its AFM not MAF.

07-14-2011, 12:23 AM	#3
IKneX Stock Join Date: Jun 2011 Location: Canada, PEI Posts: 23	Oh yeah, I dunno where I came up with MAF im trying to keep my motor as stock as I can, I just want everything to run 100% smooth, ill stick with the 7m AFM.

07-14-2011, 03:05 AM	#5
IKneX Stock Join Date: Jun 2011 Location: Canada, PEI Posts: 23	K, ill check that, im assuming is in the TSRM?

07-14-2011, 03:48 AM	#6
El Supracabras 3" Exhaust Join Date: Feb 2010 Location: Chicago Posts: 240	If your AFM fails the tests and that Lexus AFM is cheap, buy it, use the sensor and sell the housing. The sensor is the same as yours the housings are different. Just put the sensor in your 7M housing. Be sure to closely inspect the connector and wires while testing the sensor.

07-14-2011, 01:05 PM	#8
IKneX Stock Join Date: Jun 2011 Location: Canada, PEI Posts: 23	Oh I didnt know that, Thats what I was gonno do anyway because the ebay one was JUST the sensor not the houseing. So as long as I keep my 7m houseing I can use the lexus one?