[W126 Coupe] question about throttle position switch help anyone/everyone

[Dick Spellman]

Gary,

Your meter when set to read resistance should read 'closed' when the car is
at idle and the throttle plate properly closed off in the throttle body.  As
soon as you depress the accelerator or move the throttle linkage the tps
should read open.

So using an analog meter the needle sweeps clear over as you would see when
you take both meter probes and touch them together (that's Closed). Now when
you separate the two meter probes the meter needle will be at rest (said to
be Open).

I assume you've figured out which terminal is COMMON and which is WOT and
which is IDLE?

If using a digital meter, let me know.

Regards,
Dick

On Sat, Jan 3, 2009 at 5:46 PM, Gary <garysalas at yahoo.com> wrote:


> once i close the throttle plate and hook the meter to the electrical posts

> what should the meter do or display?

>

> *Dick Spellman <dick.spellman at gmail.com>* wrote:

>

> Gary,

>

> You need to check the closed position of the throttle plate in the throttle

> body then attach the tps and test.  You may have a bad wiring harness to the

> tps as well.  If the car was starting then stopping abruptly it could well

> be the throttle plate and body have a build up of carbon. This will prevent

> the throttle plate from closing and your tps will never read closed circuit

> at idle as it should.

>

> Regards,

> Dick

>

> On Fri, Jan 2, 2009 at 7:53 PM, Gary <garysalas at yahoo.com> wrote:

>

>> i replaced the old one and i still get the number 10 code   which is the

>> tps.    so i'm wondering do i need to calibrate the tps.  i was told if i

>> did i had to use a analog multi meter.  and what parameters/numbers am i

>> looking for?

>> The MB Coupes Website!

>> W126 SEC Mailing List

>> Postings remain property of MB Coupes, L.L.C.

>>

>

> The MB Coupes Website!

> W126 SEC Mailing List

> Postings remain property of MB Coupes, L.L.C.

>

>

>

> The MB Coupes Website!

> W126 SEC Mailing List

> Postings remain property of MB Coupes, L.L.C.

>

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