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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 4AGE stock ECU programmable
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Sat, 03 January 2004 01:31
 
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Why go Aftermarket for EMS
Why go aftermarket when the OEM ECU can be rechipped?
I have done a lot of work on the UK AW11 MR2 ECU and would like to have a play with a US model ECU for the NA model.
I intend to take the ECU apart and reverse engineer and modify it it to make it reprogrammable etc.
I have already done this successfully with the ECUs for the UK AW11 MR2 NA models and the UK Corolla AE86 ECUs.
I extract the masked ROM code from the micro in the ECU and then replace the micro with a module that runs the same ROM code/maps but can be reprogrammed at will.
I can alter all the stock fuel (there are lots of fuel maps!) and ignition maps, the TVIS thresholds and the rev limiter (or ANY part of the MR2 code I wish)
I also produce a module that taps into the hidden diagnostic capability within the AW11 ECU.
This allows high data rate monitoring of all current engine management data as the car is being driven. Eg throttle, rpm, EFI pulse width, speed in mph, ignition timing, air temp, coolant temp, MAP sensor, mpg and lots more.
See www.jmross.freeserve.co.uk/page1.html
for the diagnostic module info. (The reprogrammable module is larger than this).
To provide the same for the US ECU would be the next logical step for me.
Can anyone help by providing me with a (cheap!) US model mk1 (AW11) MR2 NA ECU? I have tried several times in the past to get one but no one in the States seems interested.
Thanks
Jeremy email J_ROSS@TRLTECH.CO.UK
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