1996 LT1 to 12200411 PCM conversion help

Hello everyone!
as the thread states, I am in the middle of a 12200411 PCM conversion on my '96 Trans Am WS6 LT1, I have got the car to run, albeit very roughly, but running none the less. I used the 2001 Chevy express Tune for the L31 engine, deleted the cam position sensor and the emissions stuff, Vats, etc.... I have installed Ford Blue Top 24lb fuel injectors, and I changed the flow rate in the bin file, the correct fuel rate in grams per second? and the car is smoking white smoke (raw fuel) I know very little about tuning from everything I have been reading, but not enough to get this car to run well enough to get it to a tuner to straighten it out. Can anyone help me "Iron this Out" at least enough to get the car to a tuner without grenading it, or burning it to the ground? I am using tunerpro RT to edit my bins, and using "LS Droid" to flash the files to my PCM.
I have attached my Bin file, if anyone would care to look it over, I'm stuck and could really use the help!
Thanks!
Ben Smith
Benjamin.L.Smith@hotmail.com
(816)956-1202

Hello,
I took a quick glance, there are major problems with that bin file. I don't have much time to help today but let's start with your base file. Post that and let's go from there, plenty of other guys here to help too.

Code:

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altexpress 1.bin (p01-p59.xml (v 1))

Segments:
 OS          PN: 10      , Ver: AB, Nr: 1  [0000 - 04FF, 0500 - 3FFF, 20000 - 7FFFD], Size: 63FFE
 EngineCal  PN: 10      , Ver: AE, Nr: 2  [8000 - 13FFF], Size: C000
 EngineDiag  PN: 9359000  , Ver: AB, Nr: 3  [14000 - 16DFF], Size: 2E00
 TransCal    PN: 12582160 , Ver: AB, Nr: 4  [16E00 - 1BDFF], Size: 5000
 TransDiag  PN: 16264444 , Ver: AB, Nr: 5  [1BE00 - 1C7FF], Size: A00
 Fuel        PN: 16264662 , Ver: AB, Nr: 6  [1C800 - 1E51F], Size: 1D20
 System      PN: 9373415  , Ver: BK, Nr: 7  [1E520 - 1EE9F], Size: 980
 Speedometer PN: 10      , Ver: AU, Nr: 8  [1EEA0 - 1EF9F], Size: 100
 Eeprom_data PN: 9386530  , Ver: DLAC[4000-7FFF], Size: 4000
 Hardware          9386530
 Serial            1EB1P6BK1172
 Id                3154131286
 Id2                12208511
 Broadcast          DLAC
 VIN                1GBFG15M121247083

Checksums:
 OS          Checksum 1: 4838 [OK] Checksum2: ECD7 [n/a]
 EngineCal  Checksum 1: 4F6F [OK] Checksum2: 768A [n/a]
 EngineDiag  Checksum 1: E0F2 [OK] Checksum2: 0CF6 [modded]
 TransCal    Checksum 1: E4F0 [OK] Checksum2: 42FC [stock]
 TransDiag  Checksum 1: B45D [OK] Checksum2: 5294 [stock]
 Fuel        Checksum 1: CFA8 [OK] Checksum2: 6129 [modded]
 System      Checksum 1: 2418 [OK] Checksum2: 4AE4 [modded]
 Speedometer Checksum 1: 9033 [OK] Checksum2: 6C89 [n/a]
 Eeprom_data

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The attached .bin files are modified. All three files have the same VIN, which IS NOT an Express Van VIN!

The files are most likely from an EFI Live website that has disappeared from the internet and converted to .bin

I used these files for the dual trigger distributor project, see pics below. The Express Van crank sensor has been relocated to the L31 distributor. (1x crank rotation = 2x cam rotation)

dave w

Attachment 16061

Attachment 16062

I've never done a Lt1 to 0411 conversion so this could be quite enlightening :)

Thank you all for checking into this for me! I am at work today, but once I get home, I’ll post what I have. No wonder this thing runs like crap.
Thank You!
Ben Smith

Carl,
I’m new to this tuning thing (isn’t it obvious?��) sorry couldn't help myself! What exactly are you wanting me to post? Base file? What is that other than the .bin? Operating system?
12212156 or I have 12202088. Please let me know what I am looking for, and I’ll post it up.
Basically, I have eliminated the Optispark distributer on my LT1 engine, I deleted the cam position sensor, the car already
Has the crank position sensor and reluctor wheel were already in place.
I followed another guy’s build, and used his engine Harness re-pin instructions for using the
0411 PCM.
His youtube channel is “Horsepower Tube” his name is “Kyle” He sent me his “ HPTuners tune file” that he used, but I cant do anything with it.I’ll send it to you if that will help? Just P/M your email address and consider it done!
Thanks again!
Ben Smith

Dave,
Do I have to change the file .ext in order to use these .bin files you posted?
They download as .php files.....
Thanks!
Ben Smith

Quote:

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Originally Posted by Snipescastle2

Dave,
Do I have to change the file .ext in order to use these .bin files you posted?
They download as .php files.....
Thanks!
Ben Smith

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Might be a browser setting that's downloading the files as .php? I use Google Chrome, to upload and download gearhead-efi files.

dave w

Snipescastle2, pm sent.

Okay,Just wanted to bring everyone up to speed on what I have been doing to my ‘96 Trans Am LT1 0411 PCM conversion I’ve been Collaborating with Carl (“Intech”) to get my project working. Just so everyone knows, I have “TunerPro RT” For tuning, and I have my bench tuning harness/LSDroid and the OBDLink MX+ that I have been using thus far.
I am using an “OTC Genesis” Scan tool to read whats going on with my car(I don't have an ALDL cable for my laptop, so I’m using what I have.

I’m attaching my Bin file for everyone to review, and suggest any changes that you feel will help me get this beast dialed in. The engine is stock (for right now) I am getting ready to drop a 383 LT1 Stroker in it. The new engine has right at 11.5 to 1 compression, the LT4 “Hot Cam” and ported stock heads with1.6 Ratio rockers. Comp valve-springs/retainers/push rods.Scat cast steel crank, Scat pro comp rods and all ARP
hardware. I have deleted all the emissions, rear O2’s, evap etc.....I have updated the MAF to the newer “Truck Maf” and conversion table. I will post my last set of readings taken ( before I found an injector stuck open) that has since been fixed.
The car Idles kinda rough, but still idles. It has a little off idle stumble, and probably needs more advance. One code I got after I got it running was from the cam position sensor fault ( there isn’t a cam sensor on my engine) I’ll have to turn that off in the tune. Basically, this engine is running like a 2001 Vortec L31 350 without a distributor. Batch fire fuel injection -vs. Sequential fire. Same ignition coil/module same firing order, only using the opti spark distributor as a cap and rotor.
no opti electronics being used. It is using the crankshaft position sensor and reluctor to fire the engine.

Here’s my readings that were taken most recently:


RPM’s. 2443
IAT. 75F
Spark. 35deg
IAC position 209cnt
Baro press. 17.65 inhg
CMP retard. -28deg.
Desired IAC airflow
18 g/s
Desired idle speed 825 rpms
ECT- 109F
Engine load 82%
Fuel Trim cell 21
Fuel trim learn disabled
H02S bank 1sensor 1v
456Mv
HO2S bank 1sensor 2v
447Mv
HO2S bank 2sensor 2v
443Mv
HO2S bank 2sensor 1v
464Mv
Ign. 1 signalv 13.5v
Knock retard 0 deg
Ltft bank 1 0.0%
Ltft bank2 0.0%
Loop status open
MAF sensor 25.51 g/s
Map sensor 7.38 inhg
Map sensor Volts .77v
Stft bank 1 0.0%
Stft bank 2 0.0%
TP sensor volts. .22v
MAF Sensor hertz 3236.8 hz

My .Bin file :

Please feel free to suggest what I need to make this beast run better.
Probably more like the stock LT1 spark and fuel tables.
Thanks!
Ben Smith

Thank you for the progress update, especially the psted .bin file. What would be helpful for me and several other members interested your LT1 / 0411 project would be to post the original .bin file you started with. Several members, including myself, have the "expensive" software to compare the original .bin vs. the 0411_LT1 .bin. Just looking at modified .bin file is not very helpful, but comparing the .bin files shows what parameters were changed and MOST IMPORTANTLY how much of a change!

dave w

Hello everyone,
Here is the starting .bin and .cal(TC) we began with. I was thinking it would be great to make this a group project so the next guy would have an even better starting point. Unfortunately my time is very limited to help :( I will try to have an updated .bin file tonight for Ben(Snipescastle2) to try after dinner. Them snipes are good eatin :innocent2:

Carl,
Most of the “Snipes” I’m referring to, are “Hole Snipes” as in NAVY engineering folks��
I appreciate all the help thus far! The hard part is behind me, now to dial this puppy in!!!
Have a great evening!
Ben Smith

Here it is with the cam sensor fault corrected, sorry about that. We gotta see what this thing is doing when you get a chance to do some logging.

Attached are compare differences:
Source File: 0411 LT1 OS12208322 Files\01ExpressVan3500_L31_4l80E.cal
Compare File: 0411 LT1 OS12208322 Files\0411_Lt1_OS12208322_B.bin

dave w