Speed denstiy or MAF

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Oct 16, 2001 | 06:38 PM

WS6Formula350

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Joined: Oct 2001

Posts: 115

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From: long island

Speed denstiy or MAF

i have a 90 formula 350 WS6, i wanted to know if it is speed density or has a mass air flow sensor

Oct 16, 2001 | 06:42 PM

Reno

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Joined: Apr 2001

Posts: 244

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From: Palatine, IL

I *think* 90's are speed density. To check, look for a seperate section of your intake ducting, maybe 6-8" long, black, clamps on either end, with a three prong harness connection on it. If you got it, you're MAF.

-Reno

edit: welcome to the boards!

------------------
89 Formula 350

"This is how you remind me of what I really am..." - Nickelback

[This message has been edited by Reno (edited October 16, 2001).]

Oct 16, 2001 | 07:41 PM

Kevin91Z

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Joined: Jul 1999

Posts: 10,950

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From: Orange, SoCal

Car: 1990 Pontiac Trans Am

Engine: 355 TPI siamesed runners

Transmission: Tremec T56

Axle/Gears: 12-Bolt 3.73

85-89 is MAF, 90-92 is Speed Density. You have speed density.

------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-

Oct 16, 2001 | 07:43 PM

Grim Reaper

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Joined: Jul 1999

Posts: 10,907

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From: The Bone Yard

Car: Death Mobile

Engine: 666 c.i.

Speed Density. TPI cars got SD starting in 1990. If you pull your ECM, you will see a sticker that will identify it as "1227730". The chip is probably an AUJP.