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I have a VW POLO (6N2) - 1.4 (60Hk), from February 2000.

After the car was standing still for 2 days in a rural area close to a stream (damp environment), the car had issues with being idling. Even after the car was heated. This issue did not exist before. After a 20 minute drive, and 10 minutes of the car being turned off, when I start the car it works fine at idle.

In addition, it has a hard time increasing speed. When I accelerate normally the car sort of jumps and the speed is not increased.

I am bit unsure of what can cause these issues, searching around on the Internet has led me to:

  • Issues with water/condensation in the fuel/fuel-lines?

  • Issue with the power distributor for the spark plugs?

  • The wires from the power distributor to the spark plugs?

  • The spark plugs?

  • The air intake or air leak ?

I find it a bit strange and would like some pointers on where to start with troubleshooting the issue. :)

Solution

I did not locate the specific issue, but I purchased new spark plugs and Ignition coil and it ran smoothly again :) So do this if you ever have the issue!

closed as too broad by Pᴀᴜʟsᴛᴇʀ2, Rory Alsop, anonymous2, Hᴇʀʙɪᴇ, tlhIngan Oct 15 '16 at 14:38

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Could you provide the year of your vehicle please? – DucatiKiller Dec 8 '15 at 9:30
  • @DucatiKiller just added it, it is from February 2000, when it was bought new. – JTIM Dec 8 '15 at 11:30
  • When the car is warmed up and idling, if you step on the gas to rev the engine do the rev's hang for a bit and then suddenly drop down to a rough or normal idle? – DucatiKiller Dec 8 '15 at 14:08
  • @DucatiKiller no, then it sounds and looks as normal. – JTIM Dec 8 '15 at 14:19
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    Yes, that certainly adds a layer of painful difficulty on top of everything. Well, I would be interested in hearing about the solution if/when you find it. Please jam it up in here if you discover the root of it. Best of luck to you! – DucatiKiller Dec 17 '15 at 7:37