Although Gen III PCMs are powerful control modules, they are of little use without tuning software tochange engine (and transmission) operating parameters. Cara buka file excel 2010 yang di password change password. You may find that the best results involve a blend of tuning services at an experienced dyno facility and final do-it-yourself tweaking using a popular scan-and-tune software package. The aftermarket offers all the tuning tools necessary for a successful LS1 PCM conversion. This Tech Tip is From the Full Book,. For a comprehensive guide on this entire subject you can visit this link: SHARE THIS ARTICLE: Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in. You can copy and paste this link to share: Although Gen III PCMs are powerful control modules, they are of little use without tuning software tochange engine (and transmission) operating parameters.

ECU Remapping & Tuning Software. Providing ECU tuning and car remapping files instantly. Toggle navigation. There are other benefits of utilising the PrecisionCodeWorks ECU Remapping & Tuning. Vehicle Dynamometer statists & graphs. Protocol lookup. Engine control unit (ECU) protocol lookup. 24/7 file support from our automated.

You may find that the best results involve a blend of tuning services at an experienced dyno facility and final do-it-yourself tweaking using a popular scan-and-tune software package. The aftermarket offers all the tuning tools necessary for a successful LS1 PCM conversion. GM Tuning Prior to use in a production vehicle, each GM PCM is flashed with a calibration specific for its application. Vehicle options such as air conditioning, electric fans, transmission type, throttle type, etc. Have different settings from one vehicle to another. Just as a new (or used) PCM installed into a production vehicle requires the latest GM calibration for that vehicle, a new (or used) PCM purchased for an engine/transmission conversion requires an initial calibration to be flashed into the PCM’s memory that closely matches the features of the vehicle.

GM repair technicians use a web-based subscription service to access on-board control module calibrations. When an on-board module is replaced during service, the technician uses TIS2Web for service programming.

Occasionally, a vehicle may receive a calibration update due to an undesirable performance behavior noted by owners of similar vehicles. Service technicians have access to the latest vehicle calibrations through an online subscription-based service. This service is limited to flashing on-board modules with the latest GM calibrations. Gen III engine conversions always require calibration changes to a GM calibration, so this service is nothing more than a first step in preparing a PCM for an engine conversion.

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Unfortunately, service technicians having access to this GM service are often unwilling to use it for an enthusiast because it requires the vehicle to be present for a connection to the OBD-II DLC. Software GM’s Technical Information System (TIS)—Service Programming System (SPS), (commonly referred to as TIS2Web) is an Internet utility used by service technicians to reprogram control modules with the latest GM calibration. The software is accessed through the Internet and opened as a Java applet launched on the technician’s local laptop or desktop PC. For TIS2Web on-board programming functions only, General Motors offers a calibration service that does not require an expensive Tech2. The Mongoose cable allows repair facilities to use TIS2Web. To reprogram a module, the technician first chooses the vehicle type (year, make, model, engine size). Then the technician enters the vehicle identification number (VIN), which provides a list of on-board modules available for programming.

After choosing an on-board module for programming, the technician is prompted to select from among several available calibrations. The calibration data is temporarily downloaded to the local laptop or PC (so that an interruption in Internet service does not interrupt programming) and then the on-board module is programmed. Hardware Interface TIS2Web requires a J2534 programming interface such as the GM Tech2, Drew Technologies Mongoose cable, or other compatible programming interface. The programming hardware interface is a link between the vehicle’s OBD- II diagnostic connector and a laptop or desktop PC.

The Tech2 is a powerful handheld device used by GM service technicians for advanced vehicle diagnostics and programming. Note that the Mongoose cannot perform the advanced diagnostic procedures of the Tech2.

Custom Tuning and Data Acquisition Preparing a PCM for use with any engine conversion requires custom programming. A new PCM does not contain a calibration ready for use and a PCM pulled from a used vehicle contains parameters preventing fuel delivery without satisfying vehicle antitheft system (VATS) requirements. VATS eliminator modules exist in the aftermarket but they do nothing more than supply the PCM with a signal to satisfy the VATS requirement and allow fuel delivery. Additional parameters must be changed for proper engine operation and appropriate diagnostic trouble code (DTC) processing and notification. See Chapter 15, Project 1, on page 112 for a list of DTCs after a Gen III PCM conversion. PCM calibration data tables and parameters are used to mathematically apply injector and spark timing. A misconception is that the calibration data follows engine hardware (cubic inches, cylinder head specs, fuel injector size, and camshaft profile).