1983 Toyota Celica GT-S - Message Forum (Re: TPS questions)

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Re: TPS questions

Posted By:	flyingbrick
Posted On:	November 12, 2003 at 03:16 am GMST

There is a way to check it. It's a matter of checking its continuity between the three terminals and seeing what it's doing. The other thing is to check it at specific throttle angles. There is no tool to do this however, you have to make one. It has to be the height of the throttle body and cut at I beleive 45* on the one side and 30* at the other. As far as a replacement source goes, Tomco makes one, it's over a hundred dollars though. I'm pretty sure I can get one from Toyota for about $60.00 though. Let me know if you need one.

JarettM wrote:

> Not sure exactly how to check
> for trouble codes.  Is there a
> special reader for it?
>
> OldMage wrote:
>
> > JarettM wrote:
> >
> > > Well, I don't really want
> to
> > replace it, but here's
> > > what I'm looking at.  The
> ca
> > r starts and idles kind
> > > of rough.  If I slowly, an
> d
> > I mean slowly give it
> > > gas, the car runs fine.  A
> ny
> > thing other then that,
> > > and the car almost dies. I
> 'v
> > e changed out the plugs
> > > and wires, checked my idle
> s
> > et screw and as you can
> > > tell, on my way to replaci
> ng
> > the filter.  I've read
> > > that the TPS can cause the
> c
> > ar to have symptoms like
> > > mine is having.
> >
> > TPS problems can cause sympt
> om
> > s like these.  So can AFM pr
> ob
> > lems.  I'd lean more toward
> AF
> > M from the sounds of it.  Ha
> ve
> > you checked for trouble code
> s
> > ?  The EFI system you have i
> n
> > an 85 keeps a closer eye on
> th
> > ings than the analog system
> do
> > es.  Start there, let us kno
> w
> > what you find.  Also, do the
> d
> > iags on the TPS (resistance
> ch
> > ecks).  You have a Haynes ma
> nu
> > al, right?  I think the adju
> st
> > ment scans I mentioned also
> ha
> > ve the diags.
> >
> > "OldMage"
> > '83 Celica GT-S coupe, EFI h
> yb
> > rid
> > Camas, WA  USA
> > http://www.speedtoys.com/~ol
> dm
> > age

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Message:	flyingbrick wrote: > There is a way to check it. It > 's a matter of checking its co > ntinuity between the three ter > minals and seeing what it's do > ing. The other thing is to che > ck it at specific throttle ang > les. There is no tool to do th > is however, you have to make o > ne. It has to be the height of > the throttle body and cut at > I beleive 45* on the one side > and 30* at the other. As far a > s a replacement source goes, T > omco makes one, it's over a hu > ndred dollars though. I'm pret > ty sure I can get one from Toy > ota for about $60.00 though. L > et me know if you need one. > > > JarettM wrote: > > > Not sure exactly how to chec > k > > for trouble codes. Is there > a > > special reader for it? > > > > OldMage wrote: > > > > > JarettM wrote: > > > > > > > Well, I don't really wan > t > > to > > > replace it, but here's > > > > what I'm looking at. Th > e > > ca > > > r starts and idles kind > > > > of rough. If I slowly, > an > > d > > > I mean slowly give it > > > > gas, the car runs fine. > A > > ny > > > thing other then that, > > > > and the car almost dies. > I > > 'v > > > e changed out the plugs > > > > and wires, checked my id > le > > s > > > et screw and as you can > > > > tell, on my way to repla > ci > > ng > > > the filter. I've read > > > > that the TPS can cause t > he > > c > > > ar to have symptoms like > > > > mine is having. > > > > > > TPS problems can cause sym > pt > > om > > > s like these. So can AFM > pr > > ob > > > lems. I'd lean more towar > d > > AF > > > M from the sounds of it. > Ha > > ve > > > you checked for trouble co > de > > s > > > ? The EFI system you have > i > > n > > > an 85 keeps a closer eye o > n > > th > > > ings than the analog syste > m > > do > > > es. Start there, let us k > no > > w > > > what you find. Also, do t > he > > d > > > iags on the TPS (resistanc > e > > ch > > > ecks). You have a Haynes > ma > > nu > > > al, right? I think the ad > ju > > st > > > ment scans I mentioned als > o > > ha > > > ve the diags. > > > > > > "OldMage" > > > '83 Celica GT-S coupe, EFI > h > > yb > > > rid > > > Camas, WA USA > > > http://www.speedtoys.com/~ > ol > > dm > > > age
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