At 02:41 AM 8/1/02 -0400, you wrote:
> > -----Original Message-----
> > From: owner-dakota-truck@dakota-truck.net
> > [mailto:owner-dakota-truck@dakota-truck.net]On Behalf Of J McKinney
>
><snip> While on the dyno we hooked the truck up to an
> > OBDII program and at wide open throttle the computer showed that
> > the throttle body was only 74% open. I checked voltages at the throttle
> > postion sensor and it showed only 3.8 VDC. It should be 4.8 VDC.
> > I was wondering if anybody else had ever checked their voltages at wide
> > open throttle.
>
>I've checked mine with both a volt meter and a scanner. At WOT mine reads
>3.7 VDC and my scanner shows it as 99% open. It reads .6 volts at idle.
>Ray
At WOT, my scanner shows TPS voltage at 3.75 and throttle position at 100%.
I carry back-up sensors and my other TPS at WOT shows 3.73 with throttle
position of 100%.
That 4.8 VDC (actually 4.75) appears most of the time in efi literatures and
may be so for other makes but I've never seen it for our Dakotas.
Regarding the 74% open, if you haven't done so, get a bud to hold the gas
pedal to the floor while you visually look to see if your throttle plates are
really wide open. You could use the throttle lever at the tb but it's more
accurate using the pedal (real world situation).
Bob
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