[Diy_efi] Re: motronic info

Glen Binegar glenbinegar at earthlink.net
Fri Jun 20 17:20:19 GMT 2003


Hi There,
    I have a 2002 Nissan Maxima that I purchased as a donor for a track car
I am building.  The car was a theft recovery, and came without an ECU.  I
purchased a remanufactured ECU, but couldn't start the car.  No spark and
probably no gas from the injectors.  Starter spins the motor fine, but no
spark at the plugs and no aroma of gas from the exhaust pipe after a minute
and a half spinning (15 second intervals 6 in five minutes).  I now know
that replacing the ECU requires the ECU IMMU and chip key to be initialized
at the dealer.  well I tried that, no luck, so I bought a new key and tried
again same result.  Undaunted, I have removed the engine / transmission and
wiring harness, found one broken wire in the harness.  I am not going to
reinstall the engine and return to the dealer.  Does any one know ho\w to
defeat the vehicle immobilization feature of this ECU.  I am considering
changing over to a 1996 Nissan ECU, but that involves some engine
modifications additional costs and loss of some engine control features
(variable valve timing and variable intake tract controls).  Any help would
be appreciated.   G;-)
----- Original Message -----
From: "Alexei Pavlov" <alexis.pavlov at st.com>
To: <diy_efi at diy-efi.org>
Sent: Friday, June 20, 2003 12:05 PM
Subject: Re: [Diy_efi] Re: motronic info


> Ok. You can start by looking at
> ftp://ftp.diy-efi.org/incoming/Bosch_EFI.html
>
> Also there were a free software for Porsche EPROMs that
> was available at
> http://www.netquest.net/~knighton/software.htm
> I'm not sure the trial version of their "calibrator"
> is still the old one.
>
>
> But if have a recent VW with Motronic you wont find anything
> on the web.
>
>
>
> ohiobenz at yahoo.com wrote:
> >
> > Well, would you be so kind as to post these websites?
> > This site does contain EPROM bins BTW - not something
> > I'm interested in - I'm just trying to troubleshoot a
> > VW with Motronic.
> > ====================
> >
> > Hello,
> >
> > Unfortunately this site is a little bit old. There are
> > many web pages
> > covering some aspects of Motronics: Porsche, Alfa
> > Romeo, Opel, VW/Audi.
> > Also look at alfa75 at yahoo file directory, it contains
> > EPROM bins.
> >
> > Alexei
> > ====================
> >
> > =====
> > OHB Tuning
> > Custom fabrication of performance parts for your Mercedes, VW, BMW,
Audi.
> > U.S. domestic and foreign vehicle repair and maintenance.
> > Powder coating, Anodizing, TIG welding, CNC machining services.
> > IM: OHBenz
> >
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