will this prevent fuel cut?

spins2 · 07-22-2010, 07:48 PM

will the lexus ls400 maf meter allow to push more boost. stock 12lbs fuel cuts. all i have is fmic. i heard if i got this it allowes to push more but i also hear i need injectors to. can anyone help me?

CanadianBak'inSupra · 07-23-2010, 12:05 AM

i know alot of people take them out of lexus but im not sure on what models.
your on the right track.
if you add more fuel. (pressure, or injector size)
you need to add just as much air.
have you looked into an aftermarket inter cooler, cooler, air= more air

also when using this site you SHOULD. fill out your profile info about your car, AND put your car/year/mods on car. its alot easier to help if people know wtf your driving.

cre · 07-23-2010, 01:19 AM

The 400 series Lexus (SC, LS, etc) use an AFM which allows approximately 25% more UNMETERED through. You MUST add approximately 25% more fuel as a result (~550cc injectors are just about right). This does allow you to boost more as the ECU thinks the engine is getting 25% less air than it really is.

DO NOT run a Lex AFM if you do not have upgraded injectors!

07-22-2010, 07:48 PM	#1
spins2 Stock Join Date: Jul 2010 Location: watertown Posts: 8	will this prevent fuel cut? will the lexus ls400 maf meter allow to push more boost. stock 12lbs fuel cuts. all i have is fmic. i heard if i got this it allowes to push more but i also hear i need injectors to. can anyone help me?

07-23-2010, 12:05 AM	#2
CanadianBak'inSupra Official hall monitor / search nazi - NO SOUP FOR YOU! Join Date: Oct 2009 Location: Canada, BC Posts: 837	i know alot of people take them out of lexus but im not sure on what models. your on the right track. if you add more fuel. (pressure, or injector size) you need to add just as much air. have you looked into an aftermarket inter cooler, cooler, air= more air also when using this site you SHOULD. fill out your profile info about your car, AND put your car/year/mods on car. its alot easier to help if people know wtf your driving. __________________ 1984 supra - 1uzfe - w58 - 4.10 - 1 piece aluminum shaft.

07-23-2010, 01:19 AM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The 400 series Lexus (SC, LS, etc) use an AFM which allows approximately 25% more UNMETERED through. You MUST add approximately 25% more fuel as a result (~550cc injectors are just about right). This does allow you to boost more as the ECU thinks the engine is getting 25% less air than it really is. DO NOT run a Lex AFM if you do not have upgraded injectors! __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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