I'm trying to disable the A.I.R. Pump and remove the 100 mv addition to the o2 but I'm having a hard time understanding how to go about doing this.

Can't find any informatioin on how to interperate the HAC information/calculations to add the items to the 6E.xdf.

The only link that makes some headroom is here https://www.thirdgen.org/forums/diy-...isable-6e.html

But they are using a different calc. than what the HAC says to use. How do you determine what the calc. means from the HAC.

Correct me if i'm wrong but what I've got so far is if the Hac says
LC324 FCB 73 ; 14c COOL, IF LT THRESH, DIVERT AIR
; Cal = (arg + 40) * 256/192

You add a Constant @ 324 and the calc you use is (X+40) * 256/192 I'm assuming that's for DEG F

Is that right?

Comes out to 151 Deg F

Any help would be appreciated!

Also I can't seem to find the place in the hac where it adds 100 mv to the o2 reading when diverting A.I.R



Thanks!

-Tyler

 

At the bottom of this thread. Do a search on that text to find it.
Removing Smog pump, AIR: $8D 730 modifications

 

Thank, never read that one, didn't think it applied to the $6E. Clears up some of the info, but I still don't know how to interperate the HAC cal info.

(arg + 40) * 256/192

If I plug that into the conversion it shows a value of 151, but using the other conversion of .75 * x + -40 gives the actual 14.75 Deg C value, converting 14.75 C to F shows 58.55 F

Any idea how that works?

 

You need to invert the equation. It is currently shown to go from deg C to the BIN value. To go from the BIN value to deg C:

BIN * .75 - 40 = deg C, the .75 from (192 / 256)

RBob.