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How many sets of 'clicks' in the throttle position sensor? 700 1992

posted by  raidman on  Mon May 28 09:10 CST 2012
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last visit: Fri Apr 4 22:17 CST 2014
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Daughter's 92 745 has the 'check engine' light come on after I cleaned and adjusted the Throttle body. While I was setting the position of the TPS sensor, I noticed that it had a weak 'click-click' at the opening movement BUT a stronger 'click-click' when I moved the black sensor toward the full open throttle position. Is this normal? Did I adjust it wrong?
The car has a Regina system. Could I replace the throttle body and switch with a Bosch system one, or do I have to use the French made switch only?
Thanks for any help.
el Raidman








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    How many sets of 'clicks' in the throttle position sensor? 700 1992

    posted by  Chris Mullet on  Mon May 28 11:32 CST 2012
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    last visit: Fri Oct 24 09:08 CST 2014
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    If you're in doubt about the "clicks", check if it's functioning properly with an ohm meter.

    As I recall, there's a difference between Bosch and Regina switches - seems there is one more or one less wire connected, but I may be wrong. Get someone else to weigh in on this.








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      How many sets of 'clicks' in the throttle position sensor? 700 1992

      posted by  raidman on  Mon May 28 19:44 CST 2012
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      There is a 740 with Regina in the PNP yard here in Austin. I'll get the Throttle body tomorrow and check for double sets of clicks.
      Thanks again,
      el Raidman








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        How many sets of 'clicks' in the throttle position sensor? 700 1992

        posted by  raidman on  Tue May 29 15:45 CST 2012
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        last visit: Fri Apr 4 22:17 CST 2014
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        The Regina Throttle body from the 90 740 was undamaged and only a little dirty. After installation (no need for adjustments), the car runs like before = peppy and strong.
        This throttle body has the French electrical unit and also has 2 sets of 'clicks', one set just at the start of movement of the butterfly valve and another just before maximum opening of the butterfly is reached. Two sets are apparently normal.
        Thanks for the offer of help.
        el raidman








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          How many sets of 'clicks' in the throttle position sensor? 700 1991

          posted by  chuffsy on  Tue May 29 16:13 CST 2012
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          last visit: Tue Oct 21 18:17 CST 2014
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          I went and checked mine. 91 ,regina ,non turbo , all I got was one click at the start of rotation . Is that normal?








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            How many sets of 'clicks' in the throttle position sensor? 700 1991

            posted by  raidman on  Tue May 29 19:04 CST 2012
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            last visit: Fri Apr 4 22:17 CST 2014
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            When I held the throttle body in my hands and turned the lever to open the butterfly I got both sets of clicks. One just as the throttle opened and another (stronger) as the butterfly got to the maximum opening. But after I installed it, I could only hear the first set, even when I pushed the lever to the maximum several times. I think you will get the two sets of clicks the next time you clean your throttle body.
            el Raidman







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