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    VWVortex


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    Type: Posts; User: dunc12

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      Erratic Voltage Issue

      Hi all,

      I've got a stock 2.0 16V running on megasquirt. My problem is that with the car running on jumpers from another car, it gets a solid 14ish volts.

      As soon as the jumpers are removed,...
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      Well, I'm once again bumping this from the dead....

      Well, I'm once again bumping this from the dead. I swapped the O2 sensor and it appeared to fix the issue, until I ended up with a dead battery and went to jump the car.

      I hadn't ever thought to...
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      Ignition Wiring and Starting Issues

      Hi all,

      I'm trying to get my '90 GTI started. Here's what's happened: Car was running, 1 week later, car won't start. Clock is on on the dash until the key is turned to accessory. Then the whole...
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      No chance to check wiring yet, but as it was...

      No chance to check wiring yet, but as it was working, I fear that the sensor may be dead, or dying. After researching a bit, my logs show symptoms constant with researched symptoms of a dying O2...
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      Hmm, ok. I'll check the wiring tomorrow. The odd...

      Hmm, ok. I'll check the wiring tomorrow. The odd thing is that it was working, so I suppose a connection must have somehow deteriorated. I'll report back.

      The help is much appreciated. :beer:
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      14point7 Spartan Controller. Any ideas or tips? ...

      14point7 Spartan Controller. Any ideas or tips?

      Thanks
    7. Replies
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      Bumping this back from the dead, it's time for...

      Bumping this back from the dead, it's time for this project to finally get going. The car has been sitting for about 6 months due to financial and work commitments.

      Until now, that is! Pushed it...
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      They are purely vacuum/mechanically controlled....

      They are purely vacuum/mechanically controlled. Upper deck pressure (manifold pressure) pushes on the wastegate diaphragm, opening the wastegate valve at a set pressure. It's about as simple as it...
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      Well, I'll wrap up this thread. You get all the...

      Well, I'll wrap up this thread. You get all the fake money :P

      My car is a daily, so I hadn't had much time to take apart the front end and examine the intercooler connections until recently.

      I...
    10. Damn dude, the westy front end looks fantastic....

      Damn dude, the westy front end looks fantastic. Trying to track one down myself, for my black jetta... coupe... with Ronal R15s. Your "before" photo is basically my car :laugh:
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      Well I'm coming back to this after some time with...

      Well I'm coming back to this after some time with a few updates.

      After not having the chance to do much diagnosing due to time constraints, I took the car onto the highway for a bit of a...
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      I mis-typed, but I'm still curious on the...

      I mis-typed, but I'm still curious on the mechanics. I'm aware of how the engine speed on a diesel is controlled. What I should have stated from the start was "pressure relief valve".

      I suppose...
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      I'm genuinely curious as to how a BOV prevents...

      I'm genuinely curious as to how a BOV prevents the throttle plates from closing (not diesel related, I know), especially on a car with a mechanical throttle linkage.

      My thoughts on the rings were...
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      A blow-off valve's purpose is to vent intake air...

      A blow-off valve's purpose is to vent intake air pressure (post compressor) in the event of an overpressure condition. On a gas motor (with throttle blades) this occurs when the throttle blades snap...
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      Apologies. "Pressure Relief Valve", colloquially...

      Apologies. "Pressure Relief Valve", colloquially known as the blow-off valve.

      This wasn't the problem though, as the symptoms didn't change when it was blocked. Apparently, the wastegates on these...
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      Thanks for the reply. All TD VWs have blow-off...

      Thanks for the reply.
      All TD VWs have blow-off valves as a safety feature in case of manifold overpressurization. I believe it's set to open at around 13psi, so to boost higher than that it needs to...
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      Sudden Low Boost

      Hi all,

      I'm having what seems like a low boost issue and am looking for some insight. Until recently, my 1.6TD would easily boost to about 12psi at very low RPMs and stay there until I let off. ...
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      Just to bring this to a conclusion: It turns...

      Just to bring this to a conclusion:

      It turns out the PO had left out 2 of the front mount bracket/starter bolts when he rebuilt the starter, causing the engine to have a scary amount of movement....
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      A small update to add to the confusion: vibration...

      A small update to add to the confusion: vibration hasn't occurred again, but I now seem to be getting a maximum of 5psi boost, where I was getting ~12psi before all this started.

      It might be time...
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      That's my suspicion, but the nature of the...

      That's my suspicion, but the nature of the problem is puzzling me. My experience with bad motor mounts has always been the motor rocking under decel. and accel.

      I'll check the mounts tomorrow.
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