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    VWVortex


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    Thread: Weird starting issue

    1. Member delrio's Avatar
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      04-28-2012 09:51 PM #1
      I have a OBD1 MK3 Jetta 94 150k~

      When I turn the key the car starts up but dies right when the needle hits 1000rpm but when I give it some gas at least 3 - 4k rpm it stays at idle but drives normally after that.

      Anyone else have an issue like this I'm trying to figure out the exact cause before I start buying/replacing parts....maybe its something in the fuel lines???

      Any help is appreciated

      Thanks

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      96 GTI 2.0 , 98 jetta VR6, 2000 jetta Glx VR
      04-28-2012 10:09 PM #2
      did u try cleaning idle control valve ?

    3. Member delrio's Avatar
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      04-28-2012 10:14 PM #3
      I plan on cleaning everything out the TB/MAF etc and changing the spark plugs/wires/cap so I will try that too. Before this issue I had a weird idle it was all over the place sometimes 1000 - 1800rpms and sometimes normal at 800

    4. Member delrio's Avatar
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      04-30-2012 02:43 PM #4
      Cleaned out everything the throttle MAF and ICV and it runs beautiful now and starts. It is still not starting completely normal but cleaning the ICV def helped and it fixed my crazy idle. If it the problems come back I guess I will be looking to replace the ICV, but thanks for the suggestion everyone should clean theres out just make sure you let it dry out before you put it back in

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      96 GTI 2.0 , 98 jetta VR6, 2000 jetta Glx VR
      05-01-2012 07:15 PM #5
      Quote Originally Posted by delrio View Post
      Cleaned out everything the throttle MAF and ICV and it runs beautiful now and starts. It is still not starting completely normal but cleaning the ICV def helped and it fixed my crazy idle. If it the problems come back I guess I will be looking to replace the ICV, but thanks for the suggestion everyone should clean theres out just make sure you let it dry out before you put it back in


      Glad to to suggest you and also what i would do in your place is to seafoam engine trough vacuum lines and in a gas tank too. That helps a lot with idle issues in some cases. Of course its best to do full tune up, replace a fuel filter and all that crap but cheapest option to start with is try it with seafoam and it works wonders.

    6. Member delrio's Avatar
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      05-01-2012 10:45 PM #6
      Yea I was thinking of seafoaming it this weekend but prolly gonna order a new fuel filter soon thanks

    7. Member delrio's Avatar
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      10-01-2012 09:23 AM #7
      bumping for update so now I have replaced spark plugs wires distriutor cap/rotor, fuel filter, fuel pump and some other none related parts since i've made this thread. Also cleaned out the MAF and ICV and throttle body with carb cleaner and it does run a hell of a lot better but still getting some problems.

      When I start the car it does start usually but sometimes I have to pound the gas to get it started and when I dont and start it normally I start it needle drops all the way to zero rpms then revs back up and starts but usually when it's cold or hasnt been started early in the day it will just drop and not come back up unless i slam the gas. Also the other day after going highway speeds slowing down to almost complete stop I tried going back up a slight hill and it lost complete power and the CEL came on, but without turning off the car it got it's power back about 30 seconds later and the light turned off and everything seemed normal again.

      What could this be caused by my only guess would be crankshaft sensor?

      any help is appreciated thanks
      I'm Brandon
      Quote Originally Posted by Wanganrunner View Post
      I would drag my d*ck through a mile of broken glass to hear her fart through a walkie talkie.
      Quote Originally Posted by Lwize View Post
      I'll have my fun while I can. Automatics aren't so bad. Neither is socialism...

    8. Member delrio's Avatar
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      10-01-2012 05:18 PM #8
      maybe fpr??
      I'm Brandon
      Quote Originally Posted by Wanganrunner View Post
      I would drag my d*ck through a mile of broken glass to hear her fart through a walkie talkie.
      Quote Originally Posted by Lwize View Post
      I'll have my fun while I can. Automatics aren't so bad. Neither is socialism...

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      10-02-2012 11:02 AM #9
      Verify ICV operation.

      If the crankshaft sensor was bad, it wouldn't fire at all.
      2012 Corolla
      1998 GTI 2.0T

      World Automotive
      Need any VCDS (VAG-COM) diagnostics or coding in the North NJ area? PM me.

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      10-03-2012 06:39 PM #10
      Coolant temperature sensor.

      The yellow color, four terminal sensor located in the coolant flange.

    11. Member delrio's Avatar
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      10-03-2012 08:16 PM #11
      Quote Originally Posted by germancarnut51 View Post
      Coolant temperature sensor.

      The yellow color, four terminal sensor located in the coolant flange.
      awesome you think that would be something cheap and easy to get at the dealership or is it something better to order online?
      I'm Brandon
      Quote Originally Posted by Wanganrunner View Post
      I would drag my d*ck through a mile of broken glass to hear her fart through a walkie talkie.
      Quote Originally Posted by Lwize View Post
      I'll have my fun while I can. Automatics aren't so bad. Neither is socialism...

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