This IS Thirdgen Tech, please bear with me and I'll explain how at the end. I've got this Vane Meter (flapper door MAF) from a Toyota Corolla and I want to get readings from it but can't figure out how. It has a 7 pin connector, and I can't get any Ohm readings out of it that make any sense from any combination of the pins. Can anyone tell me how I can get readings from this thing, or point me to a MAF meter that I CAN get readings from with a DVOM?

What for? This for my '83 Crossfire Injected Trans Am, and I want to use this device to balance my two throttle bodies. The factory method was to hook a vacuum guage to a ported vacuum nipple on a throttle body, set the throttle stop to read a certain reading, then go to the next TB and do the same, then re-check the first one. I bored my TB's out last summer, and doing so destroyed the "ported" port. So I recently got an air cleaner assy from a 4 banger Camaro w/TBI. I can bolt this air cleaner assy to ONE of my TB's, hook the MAF to the snorkle, observe the reading and repeat on the 2nd TB, then adjust until they are equal. You see the method for my madness?

So can anyone help me out with this Denso MAF? (Vane Meter) Thanks.

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'83 Trans Am: 400 CID oil burning junkyard long block, 224/234 crane cam, Summit aluminum roller rockers, hand ported intake, home bored 2.09" (53mm) throttle bodies, MSD 454 injectors(75 lb/hr), Holley 255LPH fuel pump, custum modded FPR, Edelbrock TES headers, SLP 3" stainless steel cat back, stock ECM & chip. Borg/Warner T-5 World Class, 12" Corvette rotors and clipers, GTA 16" wheels, South Side Machine subframe connectors, 1LE sway bars, 3.45 ring and pinion, Alpine sound.
Best E.T. 13.532
Best MPH 102.24

[This message has been edited by Tom 400 CFI (edited March 31, 2001).]

 

Tom,

The VAF (Vane Air Flow) meter you have should work well for the application you are intending.

You'll need a pinout of the Denso VAF connector and then read teh resistance variation in the sensor at a given flow. Balancing a CFI is fun, huh?

Incidentally, a Bosch analog MAF can be read with a DVM if you connect correctly:



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Later,
Vader
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"I'm'a do Things My Way - It's My way or the Highway."
Adobe Acrobat Reader

 

Thanks for the reply Vader. Two questions though;
1. If I were to use the Bosch, how would I identify the unit at the salvage yard?
2. Will the unit work in the absence of the ECM (stand alone) and what do I set the DVOM on, ohms, or dwell?

I might just go get a bosch unit since someone(you) knows how to make it work.

Yea, balencing CFI is kind of funky, esspecially after you mod the TBI's like I did. But to be honest, I don't think I will see a significant difference in the way it runs. It runs quite well, and I "balanced" the TB's by eye. I just want to get it perfect, see where I was compared to perfect(just for yuk-yuk's), and know that I have a method with which to do it from now on.