1996 lt4 ecu programming
Safety Car
Joined: Apr 2016
Posts: 4,648
Likes: 1,059
From: N.E. Ohio OH
Finalist 2020 C4 of the Year - Modified
JDT software will only be needed if the 96 ECM is also used. Alternatively, support has been added to MegaSquirt for the OptiSpark which changes things.
Or a coil on plug solution can be used and products from here:
http://www.torqhead.com/index.html
change what will be needed for programming
everything depends on what ECM the OP decides to use in the 73 that he is putting the engine into.
Or a coil on plug solution can be used and products from here:
http://www.torqhead.com/index.html
change what will be needed for programming
everything depends on what ECM the OP decides to use in the 73 that he is putting the engine into.
Le Mans Master
Joined: Aug 2015
Posts: 6,113
Likes: 1,994
From: St. Charles MO
Originally Posted by Bigpoop
I use LT1 Edit. But I think those guys may be retired.
As drcook points out, there is no actual reason that you have to stick with an OE type of ECM. Since this is going in a totally different car, you don't have to interact with a CCM, cruise control modul, RDS damper system, or volume-adjusting radio anymore. So you can use any aftermarket setup you want. However, I will note that the 94/95 PCM will be the cheapest option (by far) and will plug right into the factory 96 harness if you move that over to the C3.
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Thread Starter
7th Gear
Joined: Aug 2018
Posts: 7
Likes: 0
thanks to all the info, I ordered the "Jet DTS 14005" to program 1996 obd11 pcm, hoping that will be here soon.
Found a guy in Ohio that reprogram the 94 an the 96 ecm/pcm lt1pcmtuning for a very fair price, after I just order the jet system
thanks again
Found a guy in Ohio that reprogram the 94 an the 96 ecm/pcm lt1pcmtuning for a very fair price, after I just order the jet system
thanks again
Safety Car
Joined: Apr 2016
Posts: 4,648
Likes: 1,059
From: N.E. Ohio OH
Finalist 2020 C4 of the Year - Modified
there are many advantages to having the interface/software for yourself. especially since you are retrofitting an OBDII engine/ECM/PCM into an earlier car, with a transmission that the engine doesn't expect to see. so the PCM/ECM is going to have to be POSSIBLY changed in all the tables that apply (I know it had a 6-speed manual originally programmed for, I haven't looked at the tables from a standpoint of what it takes to put a non-electric automatic transmission into the mix)
also go in a read the fine print on the 2 methods of updates available other than postal.
so, according to the site you listed above
for postal support,
you have to mail him your ECM/PCM (to me, one and the same, ie: the computer). the car is of course, undrivable while it is in transit. and what happens if it is lost or damaged ? good luck with getting a claim out of USPS, we are fighting them on a claim right now, so the best option is UPS/FedEx if he will ship that way. if the unit is lost or damaged, you will have to get another one and start all over having it reprogrammed to your car.
this is probably the least expensive method, I looked and it would cost you a little over $200.00 to tune it. there is a free option to adjust your initial requirements, but if you have to make any more DIFFERENT changes, then:
for email support
cable loan method
So the "cable loan method" will cost you $555.00 plus having to acquire a dependable laptop (unless you have one) and once again, having computer knowledge.
Then if you are wanting the engine "fine tuned", for the data-logging software, it will need to see data such as received from the O2 sensors. Are you putting in O2 sensors ? The 1996's have 4. 2 in front of Cats and 2 after. The 2 after are for making sure the Cats are present and functional otherwise a SES/Mil light is triggered.
Those can be turned off, but if you forgot to have him do it, it is a change from what you originally asked him to do, etc etc.
also go in a read the fine print on the 2 methods of updates available other than postal.
so, according to the site you listed above
for postal support,
you have to mail him your ECM/PCM (to me, one and the same, ie: the computer). the car is of course, undrivable while it is in transit. and what happens if it is lost or damaged ? good luck with getting a claim out of USPS, we are fighting them on a claim right now, so the best option is UPS/FedEx if he will ship that way. if the unit is lost or damaged, you will have to get another one and start all over having it reprogrammed to your car.
this is probably the least expensive method, I looked and it would cost you a little over $200.00 to tune it. there is a free option to adjust your initial requirements, but if you have to make any more DIFFERENT changes, then:
For those ordering via postal mail, I offer one free retune if you pay for shipping both ways. This retune only applies to the current setup for which you ordered (for fine-tuning or making changes like shift points, etc.), it does not apply to new mods/changes you make to your vehicle. There is no time limit on the free retune.
It requires you to purchase your own tuning kit (ALDL cable/converter box, chip burner and chip for chip-based ECMs, tuning software, and datalogging software), in order to let me tune for you through email.
If you plan to do any tune editing on your own, I'd highly recommend the following:
If you plan to do any tune editing on your own, I'd highly recommend the following:
- OBDI: LT1 Pro Tuning kits from TunerCat. It includes licensed software, a cable, and if necessary a chip burner, socket and blank chip.
- OBDII: Jet Dynamic Spectrum Tuner (DST) (Amazon usually has the best price), and ECMPro Scan + enhanced GM diagnostics
1996-1997 LT1/L99: $225 + $300 Refundable Core
For 1994-2005 flash-based LT1/LS1 PCMs, you rent an ALDL cable
and free software from me, which you can use to load my tune
into your own PCM without needing to remove it, as well as
data-log while driving, so I can fine-tune the PCM exactly to
how your car is running.Requirements:
For 1994-2005 flash-based LT1/LS1 PCMs, you rent an ALDL cable
and free software from me, which you can use to load my tune
into your own PCM without needing to remove it, as well as
data-log while driving, so I can fine-tune the PCM exactly to
how your car is running.Requirements:
- Laptop/Netbook - needed to flash 1994-2005 LT1/LS1 PCMs, and data-log all vehicles while driving
- Windows 98/2000/XP/Vista/7/8.x/10.x - needed to run the flashing/data-logging software and to support the USB cable driver
- USB port - needed for connecting the ALDL cable to your laptop
- Comfortability using computers and programs - if you are a complete computer novice, this will not be for you; if you can install and use normal computer programs, install a USB device, and email attachments, you should be fine!
- ALDL vehicle port - all factory vehicles which I can tune come with these; it is necessary to data-log the vehicle while driving, as well as to load the tunes for 1994-2005 flash-based LT1/LS1/Vortec PCMs.
- Internet connection - you will download the required drivers and software from the Internet using links I will provide. All PCM types require an internet connection somewhere to get the logs and tune files back and forth to and from me.
Then if you are wanting the engine "fine tuned", for the data-logging software, it will need to see data such as received from the O2 sensors. Are you putting in O2 sensors ? The 1996's have 4. 2 in front of Cats and 2 after. The 2 after are for making sure the Cats are present and functional otherwise a SES/Mil light is triggered.
Those can be turned off, but if you forgot to have him do it, it is a change from what you originally asked him to do, etc etc.
Last edited by drcook; Sep 11, 2018 at 09:29 AM.
Safety Car
Joined: Apr 2003
Posts: 3,793
Likes: 9
From: VA
You will also need to swap to the 94-95 knock sensors.
Buy your used PCM from an F or B-body and avoid the Corvette tax.
(That goes for everything else for your LT1 as well...)
1st Gear
Joined: Mar 2020
Posts: 1
Likes: 0
Did you ever get the LT4 to work in your 73? I'm looking at doing the same set up. I have the LT4 with computer and everything, also a 7004r.
Thread Starter
7th Gear
Joined: Aug 2018
Posts: 7
Likes: 0
Hi, Was having optispark issues, so rather than invest more money in the opti system, I bought 24xLink LS PCM conversion kit. Also picked up a '96 corvette transmission to replace the 700R4, working the final install in the next few months.
