I'm 99% sure that ours are not socketed. It only take a
minute to get the ECU out and something like 4 screws to get
the board out... I looked last year... I don't recall a
socket.
"Crisler, Jon" wrote:
>
> Most ECU's that have EPROMs are socketed, that way an updated eprom can be
> easily installed. The bulk cost for these type of eproms is usually very
> low (maybe $5 at most). Like Bob said, if you can get a new version of the
> eprom, and it is a fairly popular EPROM, and somebody has an eprom burner,
> you can make copies.
>
> Many auto makers (GM comes to mind) have gotten away from eproms in favor
> of flash memory (or flashable proms, perhaps EEPROMS), that allow
> technicians at the dealer to load up new code by plugging into the service
> port for the computer. If this is how the GTS ECM was done, then this
> could greatly complicate the process, since you would need a special device
> to flash the computer. Hyperchip makes a number of special purpose devices
> that allow you to do this for GM cars and trucks, but they limit you to ONE
> vehicle. It can tune a number of parameters independantly. They usually
> run about $330 on the low end.
>
> I would think a GTS savy mechanic or parts guy could easily look this up.
> Also, does the microfiche say anything about the ECU ?
>
> -----Original Message-----
> From: Burton, Bob [mailto:[EMAIL PROTECTED]]
> Sent: Monday, June 18, 2001 11:10 AM
> To: [EMAIL PROTECTED]
> Subject: Re: New 96 ECU EPROM
>
> We have a repair facility here that does component level repair. Since I've
> never tried to open the case on the ECU don't know how hard that is but if
> it's not difficult and the circuit board can be accessed, I can easily
> replace the eprom in the ECU. Since our Dutch friend says they replaced the
> eprom, sounds like it can be done to me, otherwise there would be yet
> another ECU. Eproms depending on type are not very expensive, getting a
> master eprom or the code to put on the eprom is obviously the first step. No
> master eprom or new "96" eprom code, then forget it. Bob B. (hoping there
> actually is a new eprom and someone can get it)
>
> -----Original Message-----
> From: Steve Baglien [mailto:[EMAIL PROTECTED]]
> Sent: Monday, June 18, 2001 10:30 AM
> To: [EMAIL PROTECTED]
> Subject: Re: New 96 ECU EPROM
>
> But the EPROM's are soddered on and sealed in to the ECU,
> right? You'd have to replace the entire ECU - which is big
> bucks.
>
> "Burton, Bob" wrote:
> >
> > If this is true and anyone over the pond can get their hands on one (or
> two)
> > of these new eproms, like I said before, most likely I can duplicate them.
> > If anyone checks into this please keep me posted. I'm sure Yamaha USA will
> > not acknowledge this eproms existence.
> > Thanks...Bob B.
> > ps Given the Eprom chip number (type) and a binary or hex file I can also
> > create the eproms as well.
> >
> > -----Original Message-----
> > From: Erwin Donkers [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, June 18, 2001 6:01 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: New 96 ECU EPROM
> >
> > <snip>
> > Translation of second part is same as in the posting:
> >
> > If you drive with 3500rpm in second gear, the engine acts sometimes as if
> it
> > stalls for a moment.
> > This stays this way until you increase the throttle.
> > It seems that YAMAHA has a new EPROM (software in an IC) which has to be
> > replaced in the blackbox for the ignition/injection. The problem was
> solved
> > with the new EPROM.....
> > At the MotorRAI at Amsterdam he talked to the people of YAMAHA Netherlands
> > were he addressed the problem. YAMAHA would look in to it. After a while
> > YAMAHA replaced this EPROM with the new one (if they replaced the complete
> > ECU I don't know, I think so, and send the old one back to the factory for
> > update). Problem solved.
> >
> > Maybe its possible for your local YAMAHA dealer to contact YAMAHA
> > Netherlands for further information, and if it's available in you country.
> >
> > YAMAHA MOTOR NL. B.V.
> > KOOLHOVENLAAN 101
> > 1119 NC SCHIPHOL - RIJK
> > Tel: 020-6546000
> > Fax: 020-6546739
> >
> > Greetz Erwin
