Speedometer programming

[Leroy Eckert]

Interesting. I would expect cycle temperatures in that range because the sensor
has an 8-10 degree range. I would anticipate 181 on flat land only with the
fan override on in winter unless it was very cold. What was the approximate OAT?
You can check the fan override by starting the engine at which time the fan
should be spinning about 400 RPM. Turn the fan override on and it should spool
up to about 1800 RPM. It should do the same if the chassis a/c switch is turned
on. (pilot or co-pilot)
As I remember your a/c condenser is on the radiator, not on the roof.

Leroy Eckert
1990 WB-40"Smoke N Mirrors"
Niceville, FL




----- Original Message -----
From: Don Bradner
To: WanderlodgeForum@yahoogroups.com
Sent: Wednesday, February 07, 2007 10:53 PM
Subject: Re: [WanderlodgeForum] Speedometer programming


My cycle, when climbing hills (the only time it really cycled) was 197 on, 189
off. I suspect that could be 195/190 and is just overshoot, but it was
consistent. On flats, it dropped as low as 181.

I think it is possible that the fan override does not work - I saw no effect,
and it did not cause an increase in engine utilization, while the cycling
appeared to increase usage.

Of the PIDs I reported before, only trip mileage and trip fuel failed to work.
Trip miles were zero, and trip fuel was identical to total fuel. Total fuel was
over 7000 gallons, and corresponds to the 825 or so hours showing - about right
from when the records indicate the ECU was changed. Average MPG was an
unchanging 5.2MPG, presumably from that total 7000 gallons, while instantaneous
MPG ranged from a low of 1.1MPG when I accelerated uphill out of a rest stop, to
the max possible of 256MPG when rolling down hill with no throttle. Enough
variation on the level that it woud be hard to find the "sweet spot."

On 2/7/2007 at 10:20 PM Leroy Eckert wrote:

>I'm happy you found the answer. On your next ride I would appreciate
>knowing the high and low engine water temperature cycle values from the
>VMSpc. And if it is not to much trouble, run it for 5 miles with the fan
>override on and pass along the constant low water temperature. Both over
>flat land for comparative purposes. Thanks.
>
>Leroy Eckert
>1990 WB-40"Smoke N Mirrors"
>Niceville, FL
>
>
>
> ----- Original Message -----
> From: Don Bradner
> To: WanderlodgeForum@yahoogroups.com
> Sent: Wednesday, February 07, 2007 9:56 PM
> Subject: Re: [WanderlodgeForum] Speedometer programming
>
>
> A followup on the speedometer: Mine was set for "10" (2+8), and the
>factory called for 26 - switches 2,3 and 6 which are 2+4+20. I set that,
>and it still read substantially high. I set 40 (switch 7 only) and the
>speedometer was about 20% low. Set 34 (switches 3, 5, 6, which is
>4+10+20), and I was 5% low, then 32 (switches 2, 5, 6) and I was
>essentially dead on.
>
> This was done over a trip of 150 miles today, and during it I also set
>my digital VMSpc speedometer to dead on - it was 1.8% fast over 10 miles
>of flat desert at exactly 60mph. I now have two accurate speedometers,
>analog and digital.
>
> From this I conclude that the dip switches are additive, as shown above,
>and the higher the combined number the more they take off the speed.
>
> In the various invoices I have with this coach are two for transmission
>ECU replacements, with the symptom being initially a lack of any
>speedometer reading at all, and the second a couple of days later when the
>"new" replacement failed completely. The shop which replaced both (second
>under warranty, of course) noted that they could not get a second
>identical one either new or reman, so used a reman "+2" unit.
>
> I don't know what that means, but I assume it is somehow different, and
>probably doesn't put out the same speed data as the original, which is why
>factory programming didn't work.
>
> On 2/4/2007 at 3:45 PM Don Bradner wrote:
>
> >The speedometer on 90 PT40 reads roughly 15-20% high. Presumably racks
>up
> >miles at a higher rate as well.
> >
> >The VMSpc speed reading appears to be just about dead on; I would like
>to
> >improve the accuracy of the speedometer, and I wondered if anyone here
>has
> >any info on the programming?
> >
> >On the back are 12 dip switches. 1-4 are labled "Ones" and 1, 2, 4, 8.
>5-8
> >ae labled "Tens" and 10, 20, 40, 80. 9-12 are labeled "Filter."
> >
> >Only 2 and 4 are on (values 2 and 8).
> >
> >This is an obvious question for Bluebird tech support, but so far on
>other
> >issues I'm batting .000 with them (meaning I have yet to talk to a
>human)
> >so I thought I would ask on the forums first in case someone has
> >previously received programming info.
>
> Don Bradner
> 90 PT40 "Blue Thunder"
>
>
>
>
>
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>
>
>
>
>Yahoo! Groups Links
>
>
>

Don Bradner
http://www.arcatapet.net





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