[Diy_efi] TPS Specs / PN's

[Mike]

an LM 324 op amp would do it, few app notes on that around the
web, its a 14 PIN ic with 4 x opamps, select resistors for multiply
by 5/3.8 and use one as buffer amp at front end for 1:1, that and a
zener regulator would be all you need... cheers

mike

At 12:50 PM 12/28/06, you wrote:
>I've run in to an issue with my TPS that may become a problem in the near
>future.  I'm using a Mopar Performance billet 4V 1000cfm throttle body that
>came with Mopar-type sensors (MAP, IAC, TPS) as it is the "off-road"
>replacement for the Magnum V8 throttle body.  Although the MAP and IAC seem
>to be pretty straight forward, the TPS is both non-adjustable, and doesn't
>seem to reach full voltage at WOT.  By relocating the mounting holes, I was
>able to achieve 0.5V at idle, but I can now only get about 3.8V at WOT.  I'm
>not sure how the Magnum trucks dealt with this issue, but I don't think my
>'7730 is going to be happy as-is.
>
>I suspect that I may be able to program around the WOT voltage limit, but
>I'd prefer not to if at all possible.  This now brings me to my question...
>is there a resource out there that discusses the various options for TPS's?
>I'd like to see if there is something out there that will give +/- 5.0V at
>WOT and still give 0.5V at idle, AND be correctly "handed" for my
>application.  I would estimate that the throttle shafts turn about 80-85% of
>the GM TB I have in the garage when at WOT.  I've got a catalog on TPS units
>made by Tomco.com, but it doesn't get in to the guts of the specs, just PN's
>and ID photos.
>
>Any help greatly appreciated, especially now that the critter is running.
>Idles OK (needs IAC tweaking), throttle response is nice (not moving yet),
>but I want to make sure it KNOWS that it's at WOT when it is.
>
>Clair
>69 Valiant 340/'7730
>FTWTX
>
>
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