Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)
Sign in to follow this  

proper actual values for TPS and pedal encoder for 986S?

Recommended Posts

I see a few posts where people have listed the actual value they get via Durametric for throttle position sensors and pedal encoder potentiometer, but no clear reference to what the values should be.


2004 986S US 3.2L



For throttle position sensor 1 

at idle, I get .64 volts; at 3000 rpm I get .84 volts


For throttle position sensor 2

at idle I get 4.37 volts; at 3000 rpm I get 4.16 volts



For pedal encoder potentiometer 1

at idle .76 volts; at 3000 rpm I get 1.08 volts


For pedal encoder potentiometer 2 

at idle .38 volts; at 3000 rpm I get .54 volts



proper values or no??



Share this post

Link to post
Share on other sites
    You can remove these ads by becoming a Contributing Member.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Similar Content

    • By Myotis
      A while ago, I had a Durametric scan on my 996 (1999), and during the Short Test I received fault codes 22 (Potentiometer right mirror Open circuit vertical) and 20 (Potentiometer right mirror Open circuit horizontal) under the Seat Memory section.
      My question is, where are these potentiometers, if I wish to inspect them for either being worn out or having a bad connection? I can manually adjust the passenger mirror with the mirror controls, it's just that the passenger mirror doesn't work with seat memory. I'm taking a guess that the mirrors only have motors in them and these potentiometers are probably in the modules under the seat or in the door sill, but I'm not sure which, and where specifically. Also, are these potentiometers tiny little trim pots on a circuit board, or some kind of larger specialized potentiometer component with a part number? Or does one typically replace a larger module for a fault like this?
      The closest thread I could find on the subject was this one: http://www.renntech.org/forums/topic/40724-seat-memory-function-issue/?hl=%2Bmirror+%2Bpotentiometer - but it appears his issue was fixed by plugging something back into a control module that was intentionally unplugged, and did not reference the specific potentiometers.
      Any more specifics or even links to circuit/wiring diagrams for this area would be great. Thanks in advance.
    • By baker_g
      Have recently had 4 new TPS sensors installed in my 997 MY08 C4S at local Porsche Indy. Tire pressures are displayed but system will not store the registration data after being "Set" through console or PMIS. With each ignition start receive message "Wheel change? Input new TPC settings". followed by flat tire and red error lights. Have driven car extensively between settings for system to "learn". Indy tried a known working control module without different result. I do not know mfg. of sensor units although shop has indicated that they have used them before in other vehicles without problems. Everyone is stymied frankly. Would appreciate any suggestions. Thanks.
    • By chamilka
      Hi Loren or anybody out there
      Vehicle: 2004 Porsche Cayenne S with over 114,000 miles.
      Problem: I am getting “ PSM Failure - Workshop" message often immediately followed by sluggish gas pedal and ultimately slowing the vehicle to a point it is not moving.
      What I have done so far:
      I replaced a brand new battery yesterday just to be sure. But not result.
      I would clear the codes using Durametric, and after few miles (intermittent) the problem occurs again.

      Following are the Actual values From Durametric Engine section while pressing and releasing gas pedal:
      Throttle-valve potentiometer 1 = 15.23%
      Throttle-valve potentiometer 2 = 80.85%
      Pedal-travel sensor potentiometer 1 = 14.0%
      Pedal-travel sensor potentiometer 2 = 7.03%
      Potentiometer 1 voltage emergency air = 0.78V
      Potentiometer 1 voltage lower stop = 0.52 V
      Potentiometer 2 voltage lower stop = 4.4 V
      Throttle-valve angle potentiometer 1
      Throttle-valve angle potentiometer 2
      Pedal value = 0%
      Throttle plate angle load signal = 0%
      Throttle angle actual value = 0%
      Throttle angle nominal value (adaptation) = 0%
      Could you please help me understand what going on and direct me to any usful repair procedures.
      I appreciate your help.
      Thank you
      Chamilka, firfax VA
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.