Welcome to Carputing LLC.
1996 and 1997 LT1 and LT4 Tuning
If you own a 1996 or 1997 LT1 or LT4 engine, we have the tools for you. In 1996, all car manufacturers switched to a new way to communicate with their vehicle. It is called OBD-II. It is significantly more complex, and requires a custom Interface Module.
We at Carputing LLC are the only supplier of computer-based tuning for your LT1/LT4. We started with our superb LT1-edit expert editor, with all the latest features, and are working on adding features that exist only in the 96/97 LT1/LT4's. Here is user's guide for LT1-edit LT1_Edit Users guide. It is an MS-Word file stored in a zipped format (WinZip is one tool that will unzip it for you. this zipped version is still nearly 400kb) (Here is some older information from another website about the editor and programmer: LT1_Edit - The Editor for your '94/'95 LT1 Motor.) Any questions about the editor?? Just ask PCMdoc@surfree.com
The editor even gives you 3D graphs for viewing your tuning setups
We also now provide you the entire package. Our tuning package includes the OBD-II cable for your vehicle, the Cable Interface Module, the USB cable to your laptop, and the software to read, program, and edit your PCM on your laptop. Mailing via air is even included (to U.S. locations, shipping outside the U.S. is extra).
We have also simplified the ordering process. Since we include everything, once you place your order, we ship the entire package. You do not need to get a separate cable and read the PCM ahead of time. One step, and you've got it.
Ready to order? Here is a link to the 96/97 order form 1996/1997 Order Form
One word of caution: if you want to add additional PCM's for 96/97 LT1's at a later date, you will need to return the Cable Interface Module to us for updating.
If for some reason your laptop loses your LT1-edit software, during your software update period we can re-ship it to you at no cost. After your software update period expires, there will be a handling charge for software re-ships.
LT1-edit runs on Windows 98, Windows ME, Windows NT, Windows XP, Windows 2000, Windows Vista and Windows 7 operating systems. Minimum hardware requirements are a Pentium 166 or AMD processor with at least 32MB RAM. You will also need one available USB port on the PC. This is used for the OBD-II to USB converter we provide.
We have found at least one aftermarket laptop automobile DC power supply that could destroy any cabling between the laptop and the vehicle. This power supply connects the laptop ground to the vehicle's battery +12. Any cable connected from this laptop to the under-dash connector could have +12 volts put across its ground connectors. There are two conditions you must be cautious about. 1) If you are powering the laptop from a DC power supply plugged into the vehicle, then the laptop ground could be held at a voltage above or below vehicle ground. 2) If you are powering the laptop from a wall outlet and also have the vehicle on a battery charger, then the laptop ground could be held at a voltage above or below vehicle ground. If you are unsure about your laptop power supply, you MUST measure whether there is any voltage on the laptop ground measured against the vehicle ground.
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