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Jetta: Slow idle when cold/no power

Tiny
NOVASTAR
  • MEMBER
  • VOLKSWAGEN
Good Day, I recently had the main computer replaced in my '89 Jetta/ 1.8 L/ 5 spd. Since then I noticed reduced pick-up and power from @ 2500 rpm to 3000 rpm, then I get a surge. The car also idles rough and will stall unless I keep the rpms @ 1200. After the car is hot it will idle, but the surge problem continues. Could it be the O2 sensor?
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Thursday, March 1st, 2007 AT 10:16 AM

2 Replies

Tiny
BRUCE HUNT
  • MECHANIC
  • 3,754 POSTS
They new computer is it kicking out any codes? I would start with looking for a vacuum leak. A hose could be disconnected or broken. Check the coolant level and ensure that there is no air in the system. Start there and lets see what transpires.
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Thursday, March 1st, 2007 AT 1:48 PM
Tiny
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Took it to a Volks Tech here in town, car runs great now. Timing belt! Thanks for your help.
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Friday, March 2nd, 2007 AT 1:20 PM

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