i have not seen in any posts giving a dtc for a tps issue
i have seen and replaced many a tps for a glitch in it's range causing all sorts of issues and some serious
testing with a drb and a dvom must take place
could be there is a couple of things going wrong though???
like the plug wires are shot. carbon on th valve thats causing a highway speed misfire and there was a tsb on
new valve springs for this issue and a weak battery
h



Stephen Cowell wrote:

> "reigelser" > wrote in message .. .
> > I need the ECU eventually because of a persistent TPS error. My mechanic
> > troubleshooted it and thinks its probably the ECU. But he thinks there has
> > to be some reprogramming to be done, because I tried one from the junk yard
> > before he looked into it and nothing changed (same TPS error, same mileage).
> > It's a 97 inline 6 Cherokee. It works, but it doesn't start at first try and
> > it is not very smooth if you want to accelerate from 65 to 75 without a
> > kickdown.
>
> So it only throws a 24 code? Do you have a manual
> or automatic transmission? Any aftermarket parts
> on the engine? It's never thrown a 15 (VSS)? That
> causes kickdown problems too...
>
> With the TPS, you can actually patch a digital
> voltmeter in and watch the voltage as you drive...
> won't hurt a thing. If the computer's bad, then
> you'd expect the +V to the TPS to fluctuate...
> if the TPS is bad, you'd expect the wiper return
> voltage to be wrong for the rpm, gear, etc.
> That's what I'd do next...
> __
> Steve
> .