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Changing from ABYA to ARAP

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Old 01-05-2002, 01:20 PM
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Changing from ABYA to ARAP

I'm new to prom programing but when I receive all the equipment I am planning on burning an ARAP chip.
Do I just download an ARAP bin file, program a chip and swop for my existing ABYA chip? (disabling 9th injector)
What I am not understanding is that when I use winbin to examine my existing ABYA code with a 32 ecu file and compare the tables/settings to an ARAP code with a 6E ecu file the arrays and 3D maps have different titles. For example with 32 I have a BPW fuel Vs Load Vs RPM map but this does not exist with 6E so how do I change this map?
It is confusing that you have differences between the 2 codes.
Please can someone explain why this is?

Thanks

Simon

88 Camaro 5.7
Old 01-05-2002, 02:08 PM
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Re: Changing from ABYA to ARAP

Originally posted by SIMON HOLTBY
I'm new to prom programing but when I receive all the equipment I am planning on burning an ARAP chip.
Do I just download an ARAP bin file, program a chip and swop for my existing ABYA chip? (disabling 9th injector)
What I am not understanding is that when I use winbin to examine my existing ABYA code with a 32 ecu file and compare the tables/settings to an ARAP code with a 6E ecu file the arrays and 3D maps have different titles. For example with 32 I have a BPW fuel Vs Load Vs RPM map but this does not exist with 6E so how do I change this map?
It is confusing that you have differences between the 2 codes.
Please can someone explain why this is?
Thanks
Simon
88 Camaro 5.7
With the 6E code the last thing you'll really want to get into changing is the Air flow maps (all 6 of them).

The 32 series of code was about the first code used with a GM TPI car, so as things progress some items change.

Stay with the 6E code and learn on it.
There should be enough 6E data in the archives here to keep you busy for quiet a while. The last thing you need to do is over complicate things. Stay with the 6e and get that down pat, then start using it to tune and see what changes when you move things around. You have to do two things, learn what the table meanings are, and how to tune CORRECTLY. At DIY_EFI at Incoming is a ditty called tuning.txt might grab a copy of that
Old 01-05-2002, 03:41 PM
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I dont plan to modify the 6 MAF tables in a big way, I have read your other posts advising against this.
The 6 tables are in both 32.ecu and 6e ecu and can be changed.
Just confused why in ABAY and ARAP there are 3 , 3D maps 2 are the same but the last is different ABAY has BPW VS load vs RPM and ARAP has EGR duty VS LV8 vs RPM. Guess thats just how it is. Just means if you need to modify the first table you cannot if you switch to ARAP.
I'm learning a lot reading previous posts.

Thanks
Old 01-05-2002, 03:53 PM
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The code and the instructions in the $6E and $32 are similar but there are a lot of differences. Also, not all tables have necessarily been defined for the $6E (Winbin or TunerCat) and vice versa for the $32. So the table may very well be there, but its not defined.

There is STILL a lot of tables in the $8D (SD 7730 - one of the best defined calibrations out there) that are not defined anywhere by any BIN Editor. The primary reason they have not been included in any BIN Editor is often no one knows exactly what they do or no one has found a need for them to be defined.

Lastly, even when a table is defined, sometimes it is "described" incorrectly and does not do what you think it does. Who'd thought that the "MAT Inverse Loop Up Delta Multipler" table is the one you need to adjust to make an SD car calibrate the proper mixture for the MAT sensor, especially if you relocate it.
Old 01-05-2002, 04:28 PM
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I see so the bin file that we get from the eprom is just a lot of numbers and you guys have to work out what addresses refer to different functions. Shame this info has never leaked out of GM describing what every address refers too but guess it is under lock and key.

Simon.

P.S I think I visited Kamloops as a child and went rafting. Stayed with friends in Vancouver (Burnaby). Small world.
Old 01-05-2002, 06:30 PM
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I did what you are doing, going from the ABYA stock bin to using the ARAP. Actually I had an ADS Superchip also, which I am using now with a ZIF socket installed. I was also concerned with the differences between the $32B cal and the '89 $6E cal. But don't worry about them, the 6E is the latest, and has more tables and constants pulled out. That cal gets updated more often, at least with TC.

Don't change much at first with the ARAP, maybe just play with the constants, and practice burning PROMs. Once you get comfortable making changes, get your BLM's reading good. There are many other fun things to tweak with the ARAP, but just take your time.
Old 01-05-2002, 08:04 PM
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Originally posted by MikeT 88IROC350
There are many other fun things to tweak with the ARAP, but just take your time.
Now there's the right attitude if you want to get the most out of eprom burning...it's fun!
Old 01-05-2002, 09:46 PM
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Originally posted by SIMON HOLTBY
P.S I think I visited Kamloops as a child and went rafting. Stayed with friends in Vancouver (Burnaby). Small world.
Yeah, if you went down the Thompson River and part of the Fraser Canyon, you would have been quite close to Kamloops. Do you recall driving on this windy road up a river canyon? Then that was ther Fraser Canyon. Quite picturesque.

If you recall going up this four lane highway up some very long hills, then that was the Coquihalla. That is the fastest route from Kamloops to Vancouver. But it's a killer (on engines).
Old 01-09-2002, 03:41 PM
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Glenn, I recall all the places you mention. I have to say that my trip to Vancouver/BC was the most memorable holiday I have had. It really is a great part of the world you live in.
I'll have to look on the Canadian Embassy website I think you can apply online for citizenship!

Thanks

Simon
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