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Guest Message by DevFuse
 

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ATTN: whoever it was that was asking about AA100 to AA110 MAF conversion


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5 replies to this topic

#1 incognito

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  • Eagle River

Posted 03 January 2004 - 03:59 PM

I got the wiring diagrams drawn up by hand.. PM me whoever wanted to know how to change the SPFI MAF to the MPFI MAF.

basically goes:

SPFI MAF - unused, R, B, W

MPFI MAF - LgR, R, B, BR, W, unused.

R, B, and W are the same for the ECU... power, ground, signal

Lgr (light green and red) is for the burn-off signal from the burn-off relay.

BR (black and red) is for the (i think) burn off signal ground.

Key points: SPFI doesn't recognise this burnoff mode. MPFI does. The burn-off relay is supposed to activate for 4 seconds after the ignition shuts off only after being in closed loop operation.

Closed Loop, meaning, fully warmed up.

What it does is the hot-wire in the MAF accumulates build up throughout operation. When you turn your car off, for 4 seconds, the burn-off mode is operative. Basically heats the hot-wire up to 1000 degreez or so to burn-off that grime.

Like I said.. Burn-off mode isn't present in SPFI (that i know of).
Take the R, B, and W wires and run em to the correct locations. Ground off (BR) wire to a ground location.

#2 incognito

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  • Eagle River

Posted 03 January 2004 - 04:11 PM

.

#3 incognito

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  • Eagle River

Posted 03 January 2004 - 05:34 PM

bump again.

#4 bushbasher

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  • Sooke B.C. Canada

Posted 03 January 2004 - 05:41 PM

sweet cause I have an mpfi sensor around, I guess that would be a bit of a flow improvement.

#5 incognito

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  • Eagle River

Posted 03 January 2004 - 05:41 PM

thats an understatement...

#6 bushbasher

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Posted 03 January 2004 - 05:48 PM

ya cause the spfi one has a what... 3/4" hole in it? :D




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