Rbob

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Aug 13, 2005 | 08:41 PM

ULTM8Z

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Supreme Member

Joined: Jan 2003

Posts: 4,626

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Rbob

RBob, would you mind taking a look at this AutoXray data? Or anyone else who is willing for that matter!

I finally got some spare time this weekend.

Taking your suggestion starting off with a stock AUJP.

Quote:

Originally posted by RBob

Make adjustments according to how the engine is running. Keep increasing the idle O2 terms 50mV at a time. Observe how the engine idles. There should be a sweet spot, then as the idle O2 values are continued to be increased the engine will get a little rougher.

RBob.

Here are the idle O2 terms:

Code:

L8496: FCB 136 ; 600 mvdc, FAST O2 R/L THRES AT IDLE L8497: FCB 136 ; 600 mvdc, UPPER ZERO ERROR O2 AT IDLE L8498: FCB 128 ; 570 mvdc, LOWER ZERO ERROR O2 AT IDLE

Should also zero out this one (no air pump, right?):

Code:

L849D: FCB 23 ; 100 mvdc, DIFF R/L WHEN AIR DIVERTED

And set the air to always divert (set to 255):

Code:

L839A: FCB 73 ; IF COOL < 14.7C, DIVERT

I did all of that (including adjusting the injector constant for my 24 #/hr injectors.

Basically, I started at 200 mV and worked my way up to 850 mV (man, did this thing ever smell rich at 850 mV!!

).

I exported and compiled all of the AutoXray data into an Excel spreadsheet for convenience. So whoever wants to see it, please post here or send me an e-mail and I'll forward the file to you.

Anyway, if you guys have some spare time, it'd be greatly appreciated!