

The A3M boxcode also belongs to the GUFB strategy. For instance, the A9L boxcode, belongs to the GUFB strategy.The definition tells the software how to interpret the binary and display it in a format you can understand with tables and real-world values. Each strategy needs a definition (or ‘def’) to work.The strategy will determine things like whether a MAF or MAP sensor is used, how spark and fuel are calculated, how idle is controlled, etc.Combined with a calbration, this determines how the engine will operate. A Strategy is the set of procedures that the ECM follows to run an engine.( ‘A9L’ or ‘T4M0’ for example) This represents a calibration for a particular engine/transmission using a particular strategy. The Boxcode is typically a 3 or 4-digit letter/number code on the EEC computer.Determine your target vehicle boxcode and strategy.( click) Email us to check before purchase! We need certain information to tell if your vehicle is supported.If you have an uncommon vehicle (for example, a 1995 Festiva) you may be out of luck with our products. It’s important to check for software support before purchase.Some ECMs are simply not supported in software that works with our hardware because of lack of definition information.If you need to make changes (tune) to get your vehicle where you want it, you are limited by software support.If you already have a binary file (bin) or hex file (hex) that is tuned for your vehicle.This generally covers 86-2004 model years.

