Question about 2006 Volkswagen Polo 1.9

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Vw polo erratic idle

Eratic idle at warm temperatures

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  • Volkswagen Expert
  • 451 Answers

Most likely a vacuum leak. Are there no stored faults?

Posted on May 22, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: VW Polo Classic 1997 IDLE Problems

Hello, VW polos 1.0, 1.4. 1.6, suffer from carbon bulid up in the throttle bodys causing bad idling, esp the Bosch Mono-Motronic (Throttle Body Injection systems), a good clean with carb cleaner should repair the problem, also engine temp sensor replacement and idle speed control valve replacement can help idle problems.

Posted on Apr 19, 2009

  • 4 Answers

SOURCE: choke comes on when engine is warm on 1999 VW Polo

How do you know the choke is on? I would think it was fuel injected.
Even earlier carb models had engine management boxes to control fueling.

Posted on Jan 04, 2010

  • 271 Answers

SOURCE: vw polo 1997 999cc often idles eratically

First- lets change engine coolant sensor/ECT/ and you will be very surprised.Black head with four pins.Be very carefull when change it because there is pressure into coolant system.First-open slowly the cap of engine coolant tank.Then tighten again to safe coolant.Unplug the sensor,remove the pin and pull out the sensor.If the "O"ring/old one/ is still inside-take it out.

Posted on Apr 27, 2010

smhb1
  • 146 Answers

SOURCE: crankshaft sensor for vw polo where is the

Crankshaft sensor is located on the right side of the cylinder block behind or under the starter. It is fitted into the rear crankshaft oil seal hausing

Posted on Sep 12, 2010

  • 1 Answer

SOURCE: VW Polo Map sensor fault code idling pooly

Hi, I have a 2001 polo 1.4 mpi it lackes power when you hit a hill it just dies, It has had new cat, fuel filter, fuel pump and throttle body, but is still the same it just dose not want to give me full rev's?

Posted on Apr 11, 2011

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Engine idle eratic


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Vw polo 1997 999cc often idles eratically


First- lets change engine coolant sensor/ECT/ and you will be very surprised.Black head with four pins.Be very carefull when change it because there is pressure into coolant system.First-open slowly the cap of engine coolant tank.Then tighten again to safe coolant.Unplug the sensor,remove the pin and pull out the sensor.If the "O"ring/old one/ is still inside-take it out.

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16501/P0117 - Engine Coolant Temperature Sensor (G62): Signal too Low Possible Symptoms
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  • Starting the engine when engine is warmish or warm, idle rpm immediately is 1200 - 3000 rpm.
  • RPM at idle is irregular.
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  • With engine warm (90 °C) the engine temperature suddenly drops (70 °C) and slowly comes back to 90 °C.
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Bought a very reputable diy service manual for the vehicle, and that plus a bit of thought and nous gave me the cure: no intrinsic problem other than loose relay connections. Went round with the wiring diagrams as guide checking all electrical connections in tight and relays fuses etc all good. Switched on and no problem any more.

By the way, vehicle is 1992 VW Polo - not Fox (which in UK is a variant of the Polo)


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VW Polo Classic 1997 IDLE Problems


Hello, VW polos 1.0, 1.4. 1.6, suffer from carbon bulid up in the throttle bodys causing bad idling, esp the Bosch Mono-Motronic (Throttle Body Injection systems), a good clean with carb cleaner should repair the problem, also engine temp sensor replacement and idle speed control valve replacement can help idle problems.

Sep 02, 2008 | 1987 Volkswagen Jetta

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