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[Solved] Focus 2.0 TDCI 2006 - P1335 Error: EGR Temperature Sensor & Throttle Position Issues

autoas 29838 12
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  • #1 17151149
    autoas
    Level 42  
    Focus from 2006
    I have error P1335 described in the autocom "EGR exhaust gas recirculation temperature sensor - present"
    The error appears after the ignition is turned on, when I delete it on the working engine, it comes back only after turning off and on again ...
    In the forscana it is described as "P1335-62 - operation of the EGR system with the throttle position sensor in the idle position"
    EGRs are replaced and replaced only with the plug and the same, of course, adaptations made each time ...

    When fully disconnected, P0406 - EGR circuit high value appears

    Maybe you can tell me something !?
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  • Helpful post
    #2 17151177
    mod22
    Level 28  
    Or maybe the throttle position sensor sucks and does not show what it should be on free, which results in a tilted EGR?
  • #3 17151314
    autoas
    Level 42  
    There is no damper there, only vacuum flaps ...
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    #4 17151388
    seat21
    Level 29  
    egr potentiometer give voltage readings should be from 0.90 -1v to 4.5v
  • #5 17151431
    autoas
    Level 42  
    And it is so .... with the ignition on, about 0.8 / 1.15V on slow, so about 2.5 / 2.9V
    If an error catches after turning the ignition on, the EGR is immobilized until it is deleted
  • Helpful post
    #6 17151435
    moto-kord
    Level 28  
    Hello, about the error, the workshop says:
    P1335 - Malfunction indicator lamp (MIL) on Exhaust gas recirculation (EGR) position sensor minimum operation at stop Crankshaft position sensor 1 circuit / open Check the following components:
    1 Hall / MRE sensor on the crankshaft
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  • #7 17151455
    autoas
    Level 42  
    I do not know what to check with these sensors ... the car starts and drives well ...
    Apparently it happened after replacing the glow plugs ...
    I have to write one more thing to you ... it turns out that he has the DPF cut out ... but it has been for a long time for 1.5 years and this problem has arisen now ....
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  • Helpful post
    #8 17151501
    robokop
    VIP Meritorious for electroda.pl
    And the mushroom is not controlled by a vacuum by chance?
  • Helpful post
    #9 17151502
    moto-kord
    Level 28  
    I also found this information:

    Engine warning light is on; Engine shake idling

    Symptom
    Engine warning light is on
    Fault code: P1335

    Engine quake
    Conditions at the moment the symptom appears:
    At idle
    Cause
    Faulty position sensor of the exhaust gas recirculation valve
    Solutions
    Turn on the ignition
    Exhaust gas recirculation valve:
    Check the control signal on pin 4
    Check the exhaust gas recirculation position sensor signal at terminal 6
    Note: Use an oscilloscope
    Expected values:
    Exhaust gas recirculation valve position sensor: 1V

    Connect the diagnostic tool
    Activate the exhaust gas recirculation valve
    Exhaust gas recirculation valve position sensor:
    If the value does not change
    Replace exhaust gas recirculation valve
    Initialize the exhaust gas recirculation valve
    Legal disclaimer clause
    The SmartCASE information provided by HaynesPro is prepared by suitably qualified automotive specialists
  • #10 17151537
    autoas
    Level 42  
    EGR is completely electric .....
  • Helpful post
    #11 17151827
    seat21
    Level 29  
    it remains to throw in the ori software and try to adapt again or switch it off, since dpf is no longer there
  • #12 18277015
    autoas
    Level 42  
    I replaced the engine controller ... and it helped
  • #13 18277017
    autoas
    Level 42  
    I replaced the engine controller ... and it helped

    Added after 31 [seconds]:

    Same as above ...

Topic summary

The discussion revolves around a 2006 Ford Focus experiencing a P1335 error related to the EGR (Exhaust Gas Recirculation) temperature sensor and throttle position issues. The error reappears after ignition is turned on, despite replacing the EGR and performing adaptations. Participants suggest checking the throttle position sensor, as it may not be providing accurate readings, which could affect EGR operation. Voltage readings for the EGR potentiometer are discussed, with expected values between 0.90V and 4.5V. Additional troubleshooting steps include checking the crankshaft position sensor and considering the impact of a previously removed DPF (Diesel Particulate Filter). Some users recommend reprogramming the engine controller as a potential solution.
Summary generated by the language model.
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