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2k revs at startup 850 1995

posted by  someone claiming to be Michael on  Wed May 19 15:01 CST 2004 [RELATED]


My car revs to 2k for a few seconds then settles at 950.
The car didnt do that when i first got it a few years ago.
Ive cleaned the iac/throttle body. Checked and replaced most vac lines
What could it be? Driving me nuts.








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    2k revs at startup 850 1995

    posted by  Matt P on  Thu May 20 05:36 CST 2004
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    I had this problem on my 1996 Volvo Turbo ever since I got the car - over a year. I also have a 1994 Volvo Turbo and didn't have any problems with this. Couldn't figure out what was so different between the two.

    Then recenly I wanted to check the condition of my air filter. I opened the filter box and the air filter was not in place on the bottom part of the housing - it had been lifted up into the top half of the plastic container holding it. It was blocking the air intake with the grill towards the MAF sensor. This was also having detrminental effects on my turbo performance - it was starving for air - very slow response. I held down the air filter as I put the top plastic cover just to be sure that it was not going to move out of place. Now my RPMs at start are always under 1500 just like my 94 - before they were more like 2500.








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      2k revs at startup 850 1996

      posted by  Matt P on  Thu May 20 06:12 CST 2004
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      As far as I can tell it was the air filter that fixed the high RPM issue, however, I also removed my ECU (with engine off) lately to look at the serial numbers on the box. Just wanted to make sure that I am not attributing the solution to the wrong thing.








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        2k revs at startup 850 1996

        posted by  someone claiming to be Michael on  Fri May 21 09:35 CST 2004 [RELATED]

        Thanks for response. I'll check the air filter.
        But I'm suspecting its my oil cap. I had a recent problem where the seal broke and spewed oil everywhere. When this happened it made my rpms at startup go to 2500 and a few seconds longer. So I'll check the air filter and i am replacing the seal on the oil cap. Also replacing the etc since it got ruined by the oil.








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          2k revs at startup 850 1996

          posted by  Matt P on  Wed May 26 04:50 CST 2004
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          Good luck with fixing your problem. Also another thing that was fixed with refitting the air filter - the temperature gauge is now reaching operating temperature quickly. Before it would take 10-15 minutes to reach the 3 o'clock position. I was just about ready to install a new thermostat, but that was not the problem.







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