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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

quote Originally posted by Wacko1Jacko12: Late reply on this, but is that all someone would need to do in Tunerpro, go to the flags and uncheck the EGR Diagnostic flag (uncheck "set" box)? Or are there more steps so that it does not advance the timing? I cannot find anywhere in the forums of someone explaining where exactly changes are made in Tunerpro when you do an EGR delete.

Technically yes - but probably no.

It isn't just unchecking the EGR flag, generally there are other changes made to the code. IIRC correctly there are different fueling maps for open loop vs closed loop, etc.

You don't need TunerPro to put things back to "stock" - EPROM dumps are easily enough to find on the internet for you car. All you need is someone with a burner to burn you a new chip and you just swap them out. You could try erasing what is in the car now, but with the age of some of these IC there is the possibility that the IC will fail when being erased and cannot be reprogrammed. I have come across this many times in my other hobby (vintage arcade games).

I have all the Fiero bin files here, just just need to match with the one that should go in your car (there is a label on the ECM - but really year, engine and transmission is all you need for the correct file (well and if you need the California tune). [URL=https://drive.google.com/drive/folders/19Hf3IvT9PYqQqiIs5osKTJ4Piy6oP4kW?fbclid=IwY2xjawE9nIVleHRuA2FlbQIxMAABHTS-jSuhwZpyU_SDkxRXdp9oq1VGmg3TYdoouRWlUHHAmFRXCEJFBI4mYA_aem_W8NOD7RNaLZe3tk4k9NlKQ]https://drive.google.com/dr...NOD7RNaLZe3tk4k9NlKQ[/URL ]


Edit - sorry, reread your original post. Sounds like you want an EGR delete chip for your year of car? If you are not getting a code 32, then the EPROM probably already has the changes made. Although there are differences between the automatic code and the manual.

I do have it documented someplace one the changes needed to delete the EGR properly, I will have to look for that. But if you download TunerCat, you can compare the 2 files in the parent directory from the above link to figure out what the differences are. These are the changes I made to my car a few years back - top one is original (as dumped). Technically since your car is the same as mine, you can just download the "deleted" code and have that burned to a EPROM and use on your car - the only thing I don't remember if that code includes some changes made as I am running a 3.4l. I don't think it does as I named contains wide BLM in the title.

[This message has been edited by Mickey_Moose (edited 08-29-2024).]

Here is what I found in my notes to disable the EGR in the program code:

Set the min temp for EGR to the max value. The EGR will never turn on.

Disable the code 32 error code.


----optional----

For good measure, zero out the EGR spark advance table. That will give you
double protection but setting the enable temp to 304 will keep it from
using that table (unless you like to run your engine hot )

After that and to make it clean, disable M32, set the enable EGR TPS to
99.6%, set the BPW vs EGR to the same as the first field...

But there is not need to do any of that if the temp is set high.

Edit:
yes the EPROM is a 32k chip - so 2732 450ns will work, but I like to use faster chips.

https://www.futurlec.com/Memory/2732pr.shtml
https://www.futurlec.com/Memory/2732A-250pr.shtml
https://www.futurlec.com/Memory/2732A-200pr.shtml

[This message has been edited by Mickey_Moose (edited 08-29-2024).]

quote Originally posted by Wacko1Jacko12: This makes total sense, I saw most of these parameters however I did not see BPW Vs. EGR. Did you mean BPC Vs. EGR Duty Cycle? I understand that this is optional but I was curious. Also, your EGR Disabled - 88 Fiero AKYM th125c.bin file is not showing up in the link that was sent. Thank you so much for this detailed response btw!

Yes I am sure that is the case - been quite sometime since I was in there looking around - re: BPC Vs. EGR Duty Cycle

my file is not in the link I sent, those are OEM images - it is in the parent directory (which I thought I mentioned.

Anyways, here is the link to the parent directory: ht tps://drive.google.com/dr...NOD7RNaLZe3tk4k9NlKQ

[This message has been edited by Mickey_Moose (edited 08-30-2024).]

[This message has been edited by Wacko1Jacko12 (edited 09-03-2024).]