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surging rpm 850

posted by  someone claiming to be Leah on  Tue Sep 18 07:20 CST 2007 [RELATED]

I have a '93 volvo 850 with 179,000. I recently replaced the mass air flow sensor, air filter, and just installed a new battery the other day. When I start the car, the rpm surges to 1500, rises to 2100, and drops to 1500. The car revs like this until I turn it off. I've let it run for about 5 min. and it doesn't stop. I've tried different times of day with no difference. No check engine lights.

Someone mentioned it might be the throttle positioning sensor. Any other ideas or confirmation? Or possibly a cheaper way of fixing the problem?

Thanks,
Leah






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New surging rpm [850]
posted by  someone claiming to be Leah  on Tue Sep 18 07:20 CST 2007 >
  • New surging rpm [850]
    posted by  someone claiming to be fixit2003  on Thu Sep 20 07:06 CST 2007 >


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