Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

mass air for speed density??

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Old

Jun 11, 2003 | 10:04 PM

#1

turb0racing

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Joined: Nov 2002

Posts: 137

From: NY long island

mass air for speed density??

My bro has a 97ss and the fuel maps are in speed density but he still has what seems to be a Mass Airflow sensor? What is the mass airflow meter used for?

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Old

Jun 12, 2003 | 11:46 PM

#2

Dan K

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Joined: Jul 2001

Posts: 1,009

From: so close I can taste it...

The ECM will use the maf tables to calculate it fueling.
It will not use the fuel maps (VE tables).
That answer your question?

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Old

Jun 13, 2003 | 01:12 AM

#3

m0nk

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Joined: Apr 2003

Posts: 442

From: Long Island, NY

so what exactly are the VE tables used for?

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Old

Jun 13, 2003 | 04:02 PM

#4

Highlander

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Joined: Mar 2002

Posts: 3,082

From: San Juan PR

Its a fail safe for when you do not have a MAF for whatever reason.

The car will light up the SES and will run to wherever you need to.

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