PorKen

Simple definitions for viewing and modifying LH2.3 and EZ-K EPROMs using TunerPro.

For '84-'86 LH2.2 EZF, see this thread - LH22 EZF XDF TP5

Knock light patch - EZK knock light

A work in progress.
EZK is smaller and has simpler code, so that is what I'm working on first.

Different types have different size files, with different memory offsets, so I will include simple definitions for the ones I have.
Verbose definitions include all the tables and constants I'm looking at, but may not know their function, as yet.


Thread with different year part numbers, etc - https://rennlist.com/forums/928-foru...-and-year.html


TunerPro 5.0
download page

TunerPro 5.0 RT and Ostrich 2.0s allow for realtime modifications! (photo)

PorKen

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Notes
- '87 uses address 0000-1FFF
- '88-up uses addresses 4000-7FFF
- '89 S4 tables work for all ST BINs, AFAIK
- ST constants are listed separately, if different

Conversions
Knock tables, constants: X*0.375
Cruise, idle, wot, temp2 tables: (159-X)*0.375


Change log - TP5_89S4_EZK_changes.txt

XDFs - rename .txt to .xdf
87 EZK S4 simple - TP5_87S4_EZK_simple.txt

89 EZK S4 simple - TP5_89S4_EZK_simple_4000.txt
89 EZK S4 simple - TP5_89S4_EZK_simple_0000.txt


BINs
87 EZK S4 - BIN_87s4_EZK.bin
88 EZK S4 - BIN_88s4_EZK.bin
89 EZK S4 - BIN_89s4_EZK.bin

PorKen

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Notes
- '89-up maps are offset by 300h
- '89 XDF works for all years after
- '88 should work for ST maps, AFAIK

Conversions
- MAF ideal: (X-12288)/64
- Add maps: X-128
- Idle speed: X*25



Change log - TP5_88S4_LH_changes.txt

XDFs - rename .txt to .xdf
88 LH S4 simple - TP5_88S4_LH_simple_4000.txt
88 LH S4 simple - TP5_88S4_LH_simple_0000.txt

89 LH S4 simple - TP5_89S4_LH_simple_4000.txt
89 LH S4 simple - TP5_89S4_LH_simple_0000.txt


BINs
88 LH S4 - BIN_88s4_LH.bin
89 LH S4 - BIN_89s4_LH.bin
-- LH GTS - BIN_GTS_LH.bin

PorKen

'87 EZK is much simpler than later versions.
- No part number in code. No serial I/O (diagnostic).
- Less part throttle cruise advance, just changing to a later version should mean better performance (see pic below).

LH is not coded for auto or manual.
The in-gear input, pin 30, is wired to ground in the M481/manual wire harness.

The unused shift-light output, pin 26, is accessible from the code (port P1.7), 12V or 0V.


TP5 Notes
- View By: [Parameter Ordered List]
- double-click on table to view
- single-click icon with red squiggle to show graph
- hold CTRL key and move mouse to rotate 3D graph

PorKen

89 S4 vs 87 EZK cruise


88 S4 base map (MAF ideal + cat addition)



88 S4 MAF ideal

fraggle

I'm not sure what's going here yet, but I'm going to pay close attention.

PorKen

soontobered84

Man, you got that right!!!!!

dprantl

XDF links not working?

Dan
'91 928GT S/C 475hp/460lb.ft

PorKen

You have to use FireFox or some other non-IE browser to download the XDF files, unfortunately.

For the moment I will be updating them frequently, so it would be a pain to ZIP them.

SeanR

Porken, I'd replace the 1 with a 0 at point 1,m87x.2dc.

BC

Just drove an 88 auto that isn't running too badly. Maybe needs a new MAF. But if you can do to the s4 cars what you have done to the s3 cars, it will be amazing.

Hilton

I've got a bunch of bin's - I'll sort them out and send you them - some are from Chris' site, although I've got a few more chips I can dump per my posts in the other thread about chip part numbers.

From memory, the '88 S4 chip images on Chris' site are actually earlier than the '87 ones he has listed (based on part number in the bin files). The '89 S4 LH file he has may be corrupt - although it could be my copy of it; when loaded into ST software it had very funky rpm values.

PorKen

Cool, thanks Hilton.
I was going to mention that Chris' '89 GT EZ file is missing most of the code.

Updated '89 EZK simple.
Added WOT map bypass, the ST version, and my version (more elegant ). My first code!
Added table 1100, which I can't figure out. It uses the same code which reads the cruise table.
I want to change the cruise table to use the knock tables' rpm scale, but I'm worried about affecting 1100.

Hilton

I'm back from the beach - spent the morning doing water safety for nippers (kids programme run by Surf Lifesaving), and now have the house to myself. So I'm sitting in front of a stack of brains out of my cars and will be dumping all the versions I have to file to make sure the set I send you is as full as I have currently.

The 89 EZK file on Chris' site is from my car - I didn't send him an LH one as I assumed the one he has there is good. Will send you the set of dumps in an hour or so, to the email on your liftbars site.