Suzuki ECUs      

Swift I2

Updated 4th October 2010


I've only had a brief look around this ECU, it uses an Hitachi HD63B03 processor combined with an HD63140 Universal Pulse Processor (UPP). The UPP is a quite powerful timing processor that gives this ECU a lot of capability considering its architecture. The external EPROM is a 27C256, I have read the binary and carried out a disassembly (which I've temporarily misfiled!). I haven't spent any real time on this so very little of the code is commented.

Complete ECU

Signal Conditioning Board

Processor Board

This image shows the PCB with the EPROM removed to be read.


I2 binary (.bin)
I2 Source Code (.zip)
I2 Fuelling and Ignition Maps (.doc)
I2 TunerPro definition File (.xdf)
Partial schematics (.pdf)

Key Words

ECU ECM engine management control suzuki geo vitara sidekick tracker DSM MH6211 MH6111 air temperature sensor repair caps ignition map 3d performance tuning diy efi water temperature manifold pressure software pcb map reprogram datalog o2 sensor lambda egr tbi mpi repair rhinopower