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Question
I have a 1998 Volvo s90, base model, and I amhaving a hard time fixing a high idle problem, it idles at 1000-1200 rpm's .. I've replaced the idler sensor, cleaned throttle body etc, severalechanics have gone thru the codes and checked sys, but to no avail. What could be wrong ?

Answer
If the throttle is ajusted properly ,and the micro switch is set ok i would have to go with air leak .It is hard to put into words the ajustment ,and i am sure you can find it on you tube .If that is ok i have seen the intake leak especially at cylinder no1 .. hope this helps .

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robert white

Expertise

I can answer any kind of Volvo question to do with automotive repair on Volvo from mid 1980s to present .

Experience

30 plus years Volvo experience and have been in the automotive industry my whole life

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schooled in uk went to south London tech city and guilds in automotive science and masters in electrical engineering .

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