Quote:
Originally Posted by MYVW
Had same exact issue on my 98 Jetta...replaced Throttle Body...problem solved. Not exactly what you want to hear since Throttle Body's not cheap, but it's amost certain to be your problem.
...Bob
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You RARELY have to replace the TB. Usually it just needs a cleaning and you need to align it by putting the key in the on position until it stops whining. A rough idle on cold starts could be a number of things including a bad temp sensor. Check the normal things as stated above. Scan the car for codes.