Beiträge von dex_1985

  • [Audi 80 ABK 1993] Throttle position sensor - adjustment. How?

    In this weekend I have cleaned rubber tubes around throttle, idle control valve too. Also I didn't find any holes, leaks, etc. in installation. The problem still exists. RPM's hang at 1100 and slowly drop to 900-950. Sometimes it bounces again to 1100.


    I have this issue since ignition coil replacement (six months ago). Couple weeks ago I went to a friend with VAG and there are no errors.
    RPM-meter is OK. Its values are correct. Same in VAG and on dashboard.


    :dash:

  • [Audi 80 ABK 1993] Throttle position sensor - adjustment. How?

    Thanks for reply. Will try this procedure - BTW: first I hear about this. :)
    Also, in the weekend, I am going to clean all ruber tubes around throttle and make sure that there is no fake air. I won't forget about idle control valve too.


    I have another question. What do you think about that procedure:
    - disconnect battery clamps for the night,
    - in the morning start the engine and wait until fans turn on,
    - stop the engine,
    - adaptation is done.


    Is this correct for ABK? Does it change something?


    Oh, I have forgotten one thing. The problems about RPM's in idle state occured after ignition coil replacement. My old one has broken.
    Don't know if there is any relation...

  • [Audi 80 ABK 1993] Throttle position sensor - adjustment. How?

    Hello!


    I have little problem with my Audi 80 ABK from 1993. In idle state on
    warm engine it has between 950 and 1100 RPM. When I press clutch engine
    speed drops to 1100 RPM and then slowly drops to 950 RPM. I suppose, it
    is nothing good.


    So... I decided to check TPS with voltmeter. I messured resistance and voltage.


    Measurements:


    1). Resistance (ignition OFF):
    - 1 and 2 pin - Closed throttle: 1.35 kOhm. While opening it suddenly
    drops from 1.35 to 1.20 and then increases linearly from 1.20 to 2.53
    kOhm (full opening of throttle),
    - 1 and 3 pin - 1.91 kOhm,
    - 2 and 3 pin - Closed throttle: 3.10 kOhm, decreases to 1.35 kOhm (full opening),
    Correct values?


    2). Voltage (ignition ON - engine OFF):
    - measured on 2 pin - Closed throttle: 0.65V and increases linearly to 4.20V (full opening)
    Correct values?




    Someone in polish forum told me that 0.65V isn't correct value and I
    have to adjust TPS. In ABK produced after 1994 it's done with VAG, but
    before 1994 (like mine) with voltmeter. I have no idea how to do that
    and what voltage should be.


    Any help?


    Thanks for your time.
    Greetings from Poland,
    Rafal


    PS. Sorry for my english.