Maf sensor on ka24de.. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

AutoRnD · 07-28-2004, 06:27 PM

Ok guys maybe this is justme.. but can a maf sensor w/ stand alone ecu or piggyback ecu read boost.. Also.. is there any good way to tune a ka24de turbo w/aftermarket 550cc injectors and no rising rate.. using either a afc or a emanage. i am swaying towards emanage although the afc is on the car already... any suggestions etc...

240eggsx · 07-28-2004, 06:47 PM

MAF = Mass Air Flow... reads the flow of air through it. MAP = Manifold Absolute Pressure... reads the air pressure inside the intake manifold. NO YOU CANNOT READ BOOST WITH A MAF SENSOR!!!!!!

AutoRnD · 07-29-2004, 11:25 AM

yeah that is what i thought.. but what i don't understand is..if you take a look at the greddy e-manage. it shows that they have a add on map sensor. but when i spoke with the guy he says that its auxiliary only to the maf sensor.. now how the hell in the world does this work.

orion::S14 · 07-29-2004, 12:21 PM

MAF is used just like stock,,to meter the air coming in.

The add on MAP can be used to set up a timing table that retards based on intake manifold pressure...say .5 degrees of retard for every one pound of boost.

2 separate functions...

- Brian

07-28-2004, 06:27 PM	#1
AutoRnD Post Whore! Join Date: Nov 2003 Location: SF BAY AREA, CA Posts: 2,601 Trader Rating: (1) Rides Gallery: AutoRnD Feedback Score: 1 reviews	Maf sensor on ka24de.. Ok guys maybe this is justme.. but can a maf sensor w/ stand alone ecu or piggyback ecu read boost.. Also.. is there any good way to tune a ka24de turbo w/aftermarket 550cc injectors and no rising rate.. using either a afc or a emanage. i am swaying towards emanage although the afc is on the car already... any suggestions etc... __________________ www.AutoRnD.com Nardi, Enkei, Stance, AME Master Distributors for USA Check Out Our Facebook!

07-29-2004, 11:25 AM	#3
AutoRnD Post Whore! Join Date: Nov 2003 Location: SF BAY AREA, CA Posts: 2,601 Trader Rating: (1) Rides Gallery: AutoRnD Feedback Score: 1 reviews	yeah that is what i thought.. but what i don't understand is..if you take a look at the greddy e-manage. it shows that they have a add on map sensor. but when i spoke with the guy he says that its auxiliary only to the maf sensor.. now how the hell in the world does this work. __________________ www.AutoRnD.com Nardi, Enkei, Stance, AME Master Distributors for USA Check Out Our Facebook!

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07-28-2004, 06:47 PM	#2
240eggsx BANNED Join Date: Dec 2003 Location: nowhere Posts: 136 Trader Rating: (0) Rides Gallery: 240eggsx Feedback Score: 0 reviews	MAF = Mass Air Flow... reads the flow of air through it. MAP = Manifold Absolute Pressure... reads the air pressure inside the intake manifold. NO YOU CANNOT READ BOOST WITH A MAF SENSOR!!!!!!

07-29-2004, 12:21 PM	#4
orion::S14 Nissanaholic! Join Date: May 2003 Location: Orange Park, FL Posts: 1,665 Trader Rating: (0) Feedback Score: 0 reviews	MAF is used just like stock,,to meter the air coming in. The add on MAP can be used to set up a timing table that retards based on intake manifold pressure...say .5 degrees of retard for every one pound of boost. 2 separate functions... - Brian