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    VWVortex


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    Thread: 2000 passat 1.8t intermittent miss

    1. 04-07-2014 09:16 PM #1
      Hello all first post here. I have been having an issue with my 2000 passat 1.8 wagon that has been driving me batty for some time. I have posted in other forums with no luck and I'm hoping someone here can be of help.
      I have had random miss issues for the lack of a better term when the engine is warm and at idle or low speed. I can start the engine and drive all day long without issue but once I stop at a light for some time or turn off the engine and restart after short period of time the engine will act like an ignition miss and buck a few times until I get going again. I've changed all coilpacks and plugs with original vw parts , new oem maf sensor due to different issue and I have no fault codes. I have noticed when this happens and my window is open I can sometimes hear what sounds like air valve opening could it be related to the turbo system? Any info would be greatly appreciated and I hope my explanation makes sense lol thanks

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    2. Member
      Join Date
      Dec 5th, 2003
      Location
      Cleveland, Ohio
      Posts
      436
      Vehicles
      2002 Passat GLX Wagon (2.8L V6 "ATQ")
      04-08-2014 09:11 AM #2
      Just a hunch, but you might want to consider the engine speed sensor, aka the crankshaft position sensor.

    3. 04-08-2014 10:31 AM #3
      Thanks for the info I will check it out this weekend

      Posted via Topify on Android

    4. n00b
      Join Date
      Nov 16th, 2006
      Location
      Fort Leavenworth KS
      Posts
      3
      Vehicles
      2000 VW Passat GLS 1.8T
      04-09-2014 10:32 AM #4
      I have been having this same problem as of about three weeks ago. Were you able to verify the problem?

    5. 04-09-2014 03:23 PM #5
      Not yet. I will post if I do. I am however not completely convinced it is the crank sensor as I think the problem would show itself at any speed not just at idle or low speed after stopping at a light or shutting off engine when warm for a short period of time after and then clearing up completely. I am planning on checking the sensor tomorrow or Friday.

      Posted via Topify on Android

    6. Member
      Join Date
      Dec 5th, 2003
      Location
      Cleveland, Ohio
      Posts
      436
      Vehicles
      2002 Passat GLX Wagon (2.8L V6 "ATQ")
      04-09-2014 05:28 PM #6
      I mentioned the engine speed (crankshaft position) sensor because somebody else recently was having random misfire and engine stalling, no-start problems, with no CEL or codes, which eventually was determined to be this sensor. Now, this was with the V6 engine, not the 1.8T. It is a cheap part to replace and relatively easy to change. Might be worth a shot.


      http://forums.vwvortex.com/showthrea...ump-Relay-help

    7. 04-13-2014 05:11 AM #7
      Ok Chaps,

      I have had this problem for a while now and I've always been a VWVortex lurker but I had to create an account for this.

      Before we get all excited, I haven't figured out what it is either but, I can tell you what I have changed and everything I've tried so far.

      I have changed the plugs, coil packs, leads, MAF(Mass Air Flow Sensor), fuel filter, Crankshaft position sensor, battery, radiator, coolant temp sensor, and even added a new air filter, and I still have the same problem. (apparently these are all small things that can throw off your ECU and make over or under fueling... apparently )

      The only thing I am waiting to do is a compression test to see if any compression is lost... BUT that doesn't help because, as you rightly pointed out, there would be more of a problem at speed, not just idle.

      Now, if I use standard fuel I get the misfire at about 60-80mph, but anything between idle and 60-80mph is absolutley fine.

      If I Used a higher octane fuel, I no longer get the misfire at speed but still get the misfire at idle.

      Now in conclusion, I'm stumped. absolutely stumped. As are about 3 mechanic friends of mine and a VW dealership.

      Thought I'd share, to save you the same expenses I've just gone through.

      keep this updated though, there are a few forums where people have fixed it but haven't actually said how. lets work together

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