Honda Vtec ECU

[WILMAN]

----------
> From: Alexander Wenning <wenning.motorsport at t-online.de>
> To: diy_efi at efi332.eng.ohio-state.edu
> Subject: Re: Honda Vtec ECU
> Date: Wednesday, May 12, 1999 4:21 PM
> 
> WILMAN schrieb:
> > Hello,
> >
> > 	Is there anybody out there who can help me to reprogram the ECU's
> > found on 1992 onwards Honda Civic EG6 1.6 Vtec. Codes are either
P30-G00 
> > or P30-000. 
> >
> >
> >
> > Wilman 
> 
> That´s really not easy. You have to switch the processor from internal
rom to 
> external rom. Read the internal Rom from the processor and then fit a
27c256 
> eprom into the blank space on the pcb. Now it´s very easy to modify the
ecu 
> using an emulator. 
> 
> I have the information how to switch the processor from internal rom to
an 
> external one but I don´t know which processor is inside. Having a look at
the 
> ecu it shouldn´t be a problem to find the processor type and read the
rom. 

My ECU has the Oki 66207 processor inside. Would you please supply the
information as how to switch the processor to read from an external ROM?
Also, how can I read the ROM from the 66207 processor?




> 
> I guess Chris Smith from Racelogic is still on this list (Hi Chris!) and
I think 
> he should know about that.
> 
> If you´re just looking for a cost effective performance increase I´d
suggest the 
> Superchips conversion. They show an interesting 16 hp gain on the rolling
road 
> (using high octane fuel).
> 
> Regards
> 
> Alex Wenning
>