Idle Tables \ VSS screw-up
Clive Apps Techno-Logicals 416 510 0020
clive at problem.tantech.com
Fri Aug 13 14:22:57 GMT 1999
>
> Does the speedo read accurately?.
> I "think" it's 800 rpm for 60 mph
> Bruce
speedo standard is 1000 RPM for 60 MPH
Clive
>
> >Ludis Langens wrote:
> >>
> >> Jason Weir wrote:
> >> >
> >> > BTW has anyone seen a setting in the 7747 stuff as to VSS pulses per
> >> > mile?
> >>
> >> It appears that this is hard coded in the 7747.
> >>
> >> > Turbo City sent me the wrong one and it reads half speed. They
> >> > offered what they called a "2-Pulse" and a "4-Pulse" models so I got the
> >> > 2 pulse model, I thought that would have satisfied the 7747's 2000 ppm
> >> > requirement or does the 7747 really need a 4000 ppm?
> >>
> >> AFAIK, the 7747 wants 2000 ppm. It uses exactly the same code and
> >> constants as a different ECM which for certain wants 2000 ppm.
> >
> >
> >Ludis,
> > Thanks, thats what I was afraid of, seems strange that almost every
> >other variable is modifiable in the chip, why would they leave this one
> >out?
> >
> >Jason
> >
>
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