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    1. Semi-n00b
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      Feb 21st, 2013
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      2000 VW Jetta Vr6
      02-21-2013 07:47 PM #1
      Greetings to all, because I have the following problem with my jetta vr6

      is a 2000 jetta gls vr6 mk4, the problem until 20 minutes behaves very well in cold, runs perfect, however, after 20 minutes, pulls, feels slow, it feels like drowning, and drawing in low and has worsened lately intense jerking at high speeds, hesitating, does not react well. this is done from small jerking up and after much use, it feels like drowning, more jerking, hesitating

      At idle, the engine is working normally and even, no hesitation, and listen well.

      I changed the following new components:

      NOTE: Vagcom, not shown any code, tested three scanners and throws no code.

      COIL
      Plug wires
      SPARK
      FUEL PUMP
      GAS REGULATOR
      BATTERY
      TEMPERATURE SENSOR

      Fixed a fake that had the crank sensor harness.

      not to do, I'm totally desperate,

      Cold morning in perfect starts, pulls great, runs perfect, has power.

      I disconnected the 2 O2 sensors and the problem persists, disconnect makes no difference.

      Please ask for your help to guide me to know what happens to my car, and I've spent enough money on it and does not look good,

      Thanks for your feedback.

    2. Semi-n00b
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      Feb 21st, 2013
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      2000 VW Jetta Vr6
      02-21-2013 11:40 PM #2
      Somebody??? Can help me?

    3. Member
      Join Date
      Mar 4th, 2011
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      2003 VW GTi VR6
      02-21-2013 11:42 PM #3
      Try disconnecting the maf and see if it persists. If it stops then you need a new one.
      Quote Originally Posted by B518tko4 View Post
      Instead of driving a cheap rice burner you drive an expensive Jew burner.
      2003 VW GTI VR6 <<<clicky
      SHIFT HAPPENS

    4. Member Jay-Bee's Avatar
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      turbo wagon
      02-21-2013 11:43 PM #4
      Had a similar issue with my 2.0

      It was the crank position sensor (engine speed sensor)

      Didn't throw codes and it was really frustrating.
      Quote Originally Posted by Fritz27 View Post
      I read this in Samuel L. Jackson's voice to make it more interesting. That's all I got.
      2005 VW Passat Wagon 1.8T 4Motion 5M/T [Current]
      2007 A4 Avant 2.0T Q/MT [Sold]
      2000 VW Golf 2.0 [Sold]

    5. Semi-n00b
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      2000 VW Jetta Vr6
      02-21-2013 11:49 PM #5
      Thank your Riggy, i've tried disconnecting the maf and same problem, no has a change, the maf is new.

    6. Semi-n00b
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      2000 VW Jetta Vr6
      02-22-2013 12:01 AM #6
      Quote Originally Posted by Jay-Bee View Post
      Had a similar issue with my 2.0

      It was the crank position sensor (engine speed sensor)

      Didn't throw codes and it was really frustrating.
      Really did't throw codes? Yeah, i'm very very frustrated, do you know if its the same crank sensor for 2.0 or vr6?

    7. Member Jay-Bee's Avatar
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      02-22-2013 01:03 AM #7
      Quote Originally Posted by Genar View Post
      Really did't throw codes? Yeah, i'm very very frustrated, do you know if its the same crank sensor for 2.0 or vr6?
      It's the same sensor, but the part number is different as the wires are different length.

      The ONLY time I was able to get it to throw a code and finally lead me to the issue was after it had died over a dozen times and I put the OBD reader on it while I cranked and received no signal from the sensor.

      It would run fine cold, and only when it was hot it would die at a light or start choking on the highway. Let the car sit for maybe 10 mins and it would fire right back it, pissed me off for so long!
      Quote Originally Posted by Fritz27 View Post
      I read this in Samuel L. Jackson's voice to make it more interesting. That's all I got.
      2005 VW Passat Wagon 1.8T 4Motion 5M/T [Current]
      2007 A4 Avant 2.0T Q/MT [Sold]
      2000 VW Golf 2.0 [Sold]

    8. 02-22-2013 01:19 AM #8
      Try disconnecting the maf and see if it persists.

    9. Member Jay-Bee's Avatar
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      02-22-2013 01:32 AM #9
      Quote Originally Posted by pugrendo View Post
      Try disconnecting the maf and see if it persists.
      Read the thread noob

      Quote Originally Posted by Fritz27 View Post
      I read this in Samuel L. Jackson's voice to make it more interesting. That's all I got.
      2005 VW Passat Wagon 1.8T 4Motion 5M/T [Current]
      2007 A4 Avant 2.0T Q/MT [Sold]
      2000 VW Golf 2.0 [Sold]

    10. Member waabaah's Avatar
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      02-22-2013 01:43 AM #10
      You can also try disconnecting the 02 sensor and driving it.

      While cold, the 02 is in closed loop and doesn't do anything. While hot the ecu relies of this info gathered from the 02 and corresponds with this info by adjusting the fuel.

    11. Semi-n00b
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      2000 VW Jetta Vr6
      02-22-2013 03:26 PM #11
      Quote Originally Posted by waabaah View Post
      You can also try disconnecting the 02 sensor and driving it.

      While cold, the 02 is in closed loop and doesn't do anything. While hot the ecu relies of this info gathered from the 02 and corresponds with this info by adjusting the fuel.
      I've disconnected two o2 sensors, and problem persist

    12. Member Ultramagnus0001's Avatar
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      2001 Gti VR6
      02-22-2013 04:49 PM #12
      Try disconnecting the CTS.....Oh and the MAF too
      You can get a smooth, quiet, floaty car and fall asleep waiting to get from point A to B, or enjoy getting there.
      To be good at racing, you have to change your name to Sebastien.

    13. Semi-n00b
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      2000 VW Jetta Vr6
      02-22-2013 05:01 PM #13
      Quote Originally Posted by Ultramagnus0001 View Post
      Try disconnecting the CTS.....Oh and the MAF too
      Which is the CTS? where is located?

    14. Member Ultramagnus0001's Avatar
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      02-22-2013 05:13 PM #14
      Quote Originally Posted by Genar View Post
      Which is the CTS? where is located?
      I just read your first comment again, I think you changed it, the Coolant Temperature Sensor. How many miles? Is the timing done? What is a fake Crank position sensor, because I think the crank position sensor would cause the same symptoms you have. Post in the VR6 forum, you won't get buried there as fast as the MK4 and it's more specific to your engine. Some of the more knowledgeable VR6 people only post there too.
      You can get a smooth, quiet, floaty car and fall asleep waiting to get from point A to B, or enjoy getting there.
      To be good at racing, you have to change your name to Sebastien.

    15. Semi-n00b
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      2000 VW Jetta Vr6
      02-22-2013 05:40 PM #15
      Quote Originally Posted by Ultramagnus0001 View Post
      I just read your first comment again, I think you changed it, the Coolant Temperature Sensor. How many miles? Is the timing done? What is a fake Crank position sensor, because I think the crank position sensor would cause the same symptoms you have. Post in the VR6 forum, you won't get buried there as fast as the MK4 and it's more specific to your engine. Some of the more knowledgeable VR6 people only post there too.
      the car has it about 120k kilometers, tell me about timing, what you mean probably a valve desync by the timing belt etc?

      i think in Crank sensor, may be work bad

    16. Member engineman98's Avatar
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      02-22-2013 05:57 PM #16
      Quote Originally Posted by Genar View Post
      the car has it about 120k kilometers, tell me about timing, what you mean probably a valve desync by the timing belt etc?

      i think in Crank sensor, may be work bad
      The vr6 has no timing belt but has timing chains. The tensioners are prone to failure on the 12v vr's. If your crank sensor goes bad normally your car wont start. Have you pulled out the fuel pressure regulator or checked the vaccum line that controls it?

      I would also clean the throttle body and then do a throttle body alignment with vag com.

    17. Semi-n00b
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      2000 VW Jetta Vr6
      02-22-2013 06:02 PM #17
      Quote Originally Posted by engineman98 View Post
      The vr6 has no timing belt but has timing chains. The tensioners are prone to failure on the 12v vr's. If your crank sensor goes bad normally your car wont start. Have you pulled out the fuel pressure regulator or checked the vaccum line that controls it?

      I would also clean the throttle body and then do a throttle body alignment with vag com.
      yes, i changed the fuel presure regulator, and the vaccum line is ok, i 've checked it.

    18. Member Ultramagnus0001's Avatar
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      02-23-2013 10:57 AM #18
      Really bad CPS=no start
      One on the way out = what you have

      Never happened to me, but when I had the same symptoms for my CTS, I read a lot of posts about the CPS causing your problems. I never had to replace my CPS, but look up the symptoms.
      You can get a smooth, quiet, floaty car and fall asleep waiting to get from point A to B, or enjoy getting there.
      To be good at racing, you have to change your name to Sebastien.

    19. Semi-n00b
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      2000 VW Jetta Vr6
      02-23-2013 12:37 PM #19
      Quote Originally Posted by Ultramagnus0001 View Post
      Really bad CPS=no start
      One on the way out = what you have

      Never happened to me, but when I had the same symptoms for my CTS, I read a lot of posts about the CPS causing your problems. I never had to replace my CPS, but look up the symptoms.


      I've had the problem with CTS for this reason is new, when i changed it the car works very good, now in vag com marks correct temperature, for this reason i suppose its another thing than the cts

      Now, i've bought a new cps, today i'll install, hoping works fine!!

      I'll keep you iformed

      Greetings

    20. Semi-n00b
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      2000 VW Jetta Vr6
      03-02-2013 10:07 PM #20
      Quote Originally Posted by Ultramagnus0001 View Post
      Really bad CPS=no start
      One on the way out = what you have

      Never happened to me, but when I had the same symptoms for my CTS, I read a lot of posts about the CPS causing your problems. I never had to replace my CPS, but look up the symptoms.

      Hi, i've changed the Crank position Sensor and the problem has been solved, i really thank you by your opinions, thank you

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