Jetta: Slow idle when cold/no power

VOLKSWAGEN
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NOVASTAR
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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??
Mar 1, 2007 at 10:16 AM
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BRUCE HUNT
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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.
Mar 1, 2007 at 1:48 PM
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NOVASTAR
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[quote:705d2e6873="Bruce Hunt"]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.[/quote:705d2e6873]

Took it to a Volks Tech here in town, car runs great now ... timing belt!!!! Thanks for your help.
Mar 2, 2007 at 1:20 PM
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