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    Thread: Timing issue w/ VR6 12V 2.8 Golf

    1. 05-05-2019 09:04 PM #1
      I recently finished replacing the upper and lower timing chains on my VR6 as well as the Valve cover gasket. After putting everything back together I took it for a test drive and had noticeable improvement in the drivability, but my check engine light is still on with the P1340 code for the Cam/crank position sensors and the engine still idles rough and sounds like it’s skipping at idle. I know the timing is correct and I already replaced the sensors for the cam and the crank. Any suggestions at all for possible fixes? I’m new to Working on VW’s so any help would be appreciated.

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    3. Junior Member
      Join Date
      Nov 6th, 2017
      Location
      Charlotte, NC
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      Vehicles
      2001 VW GTI GLX VR6
      05-05-2019 09:09 PM #2
      Did you replace the guides and tensioners as well too? I had a similar issue and I had to pull my motor out for a second time to because of failing to do all of it. I consider it a lesson learned hard. But I have not ran my car yet so I'm not even sure if it will fix the code, that is just what I believe has caused it. Also, i have seen that a bad voltage regulator can cause the signal to be erratic and throw a code as well.

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    4. 05-05-2019 09:17 PM #3
      Yes I replaced all the guides and tensioners on the upper and lower chains. I figured that was the cause of the original issue.

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    6. Junior Member
      Join Date
      Nov 6th, 2017
      Location
      Charlotte, NC
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      Vehicles
      2001 VW GTI GLX VR6
      05-05-2019 09:29 PM #4
      Very interesting. Does the fault code read signal too high or too low or not at all?

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    7. 05-05-2019 09:40 PM #5
      My scanner only told me the code. I tried to clear it but the code only came back up. Where is the voltage regulator located? I haven’t been able to spot it or find it online. A friend of mine suggested the wiring could be faulty also, all of the plastic wiring sleeves just crumbled in my hand while I was working on it.

    8. Junior Member
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      Charlotte, NC
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      2001 VW GTI GLX VR6
      05-05-2019 09:52 PM #6
      Voltage regulator is the plastic unit on the back of the alternator. If you can get a hold of Vagcom or a VW/Audi specific scan tool, it will break down the codes for you. The universal p codes only tell general problems. Vw has it's own sub-language for the engine codes.

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    9. 05-05-2019 09:55 PM #7
      Is there a way to test the voltage regulator to see if it’s faulty or sending irregular current? A vag com will be my next purchase for sure.


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    10. Junior Member
      Join Date
      Nov 6th, 2017
      Location
      Charlotte, NC
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      2001 VW GTI GLX VR6
      05-05-2019 11:17 PM #8
      You can put a multimeter on the battery terminals to see its voltage before you start the car and then start it and watch it for a few minutes. If it very sporadic and inconsistent then its is most likely a bad voltage regulator

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    11. 06-04-2019 10:03 AM #9
      So I tested the voltage regulator and it holds a steady current at 12.56 when the car is off and 13.69/13.70 when the car is running. Someone recommended that the ECU might need work, is this a possibility? The engine has random misfires and a bad oil pump but one of the vacuum lines broke when replacing the timing so I just need to replace that to fix the firing issue. Other than that the car still runs and drives fine


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