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Thread: 2000 VW Jetta 1.8t Engine Codes Help!!!

  1. #1

    Unhappy 2000 VW Jetta 1.8t Engine Codes Help!!!

    So here is the deal...I have a 2000 VW jetta 1.8t auto. Here are my engine codes:

    p1171-throttle actuation potentiometer sign 2 range/performance
    p1128-long term fuel trim b1 system too lean
    p0106-absolute manifold pressure sensor (map sensor)
    p1545-throttle position control malfuncation
    p1568-idle speed throttle position mechanical malfunction
    p1578-right eng. mount solenoid valve electrical fault in circuit
    p1542-throttle actuation potentiometer range/performace
    p1557-charge pressure positive deviation
    p1297-connection turbocharger-throttle valve pressure drop
    p1570-active immobilizer malfunctioning key logic lock locked (this is key related already fixed this)

    So there is all my codes and the meaning the question is I have a vacuum leak the car runs great until you get on it hard and it goes into boost then it laggs and shutters. I know that my throttle position control sensor is going bad and my map sensor need replaced but what is the rest of this. I know what codes p1297(vacuum leak or ignition coil going bad), p1545 (throttle position control), and p0106 (map sensor) are but what does the rest of these codes mean? How do I go about fixing them? I am going to be changing all of my vacuum lines saturday and replacing the 2 sensors but what else do I need to do?

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  3. #2
    Senior Member KiDGiB is on a distinguished road KiDGiB's Avatar
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    Default Re: 2000 VW Jetta 1.8t Engine Codes Help!!!

    The rest are most likely intermittent, so one of those that failed is causing the others to have bad readings. Fix the vacuum leak and the map sensor, then reset the codes and see what comes back up.

  4. #3
    Asshat Patrol WishingBig is on a distinguished road WishingBig's Avatar
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    Default Re: 2000 VW Jetta 1.8t Engine Codes Help!!!

    Quote Originally Posted by 00jettachickie View Post
    So here is the deal...I have a 2000 VW jetta 1.8t auto. Here are my engine codes:

    p1171-throttle actuation potentiometer sign 2 range/performance
    p1128-long term fuel trim b1 system too lean
    p0106-absolute manifold pressure sensor (map sensor)
    p1545-throttle position control malfuncation
    p1568-idle speed throttle position mechanical malfunction
    p1578-right eng. mount solenoid valve electrical fault in circuit
    p1542-throttle actuation potentiometer range/performace
    p1557-charge pressure positive deviation
    p1297-connection turbocharger-throttle valve pressure drop
    p1570-active immobilizer malfunctioning key logic lock locked (this is key related already fixed this)

    So there is all my codes and the meaning the question is I have a vacuum leak the car runs great until you get on it hard and it goes into boost then it laggs and shutters. I know that my throttle position control sensor is going bad and my map sensor need replaced but what is the rest of this. I know what codes p1297(vacuum leak or ignition coil going bad), p1545 (throttle position control), and p0106 (map sensor) are but what does the rest of these codes mean? How do I go about fixing them? I am going to be changing all of my vacuum lines saturday and replacing the 2 sensors but what else do I need to do?
    Check your DV too, and spark plugs pull them and see if you have buildup on them can do it too.
    Rides: 2013 Chevrolet Cruze, 1999 Ford Explorer and 1967 Chevrolet C10

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