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Hesitation, No CEL S90-V90

posted by  mk000000001 on  Sun Aug 29 13:39 CST 2010
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last visit: Mon Dec 17 18:51 CST 2012
[RELATED]

Hello,

I have an odd problem with my S90. When I start driving (the car is already warmed up) from idle I will give it gas at a light or whatever and I will get hesitation, it will last 5-6 seconds and go away. The CEL will not come on. This happens always when the car is already warmed up and I start it to go somewhere. There is no hesitation at all after that during the entire drive.

At first I thought fuel pump but it never happens after and its only during the car being warm.

I have a spare MAF sensor and that idle control valve from a scrap car I took off. I was thinking of replacing the MAF.. Only one thing at a time so I know what was bad..

What do you think??
--
1998 Volvo S90 SE (Black Cherry) 264,000+km








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    Hesitation, No CEL S90-V90

    uid 11021's pic
    posted by  dewfpo on  Mon Aug 30 06:52 CST 2010
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    last visit: Thu Oct 23 18:34 CST 2014
    [RELATED]

    I would swap out the MAF first.

    DEWFPO
    --
    1998 S90 083,228 and 1995 964 154,100








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      Hesitation, No CEL S90-V90

      posted by  mk000000001 on  Sat Sep 11 00:05 CST 2010
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      last visit: Mon Dec 17 18:51 CST 2012
      [RELATED]

      I went to replace the MAF, but the one I have is from a 1995 960, so the plug is different. I ended up buying MAF cleaner in a can, and did a bit of a cleaning but the problem is still there. I was thinking of replacing the idle air control valve because i have one of those from the 960, hopefully they are the same.

      If anyone needs a MAF for a 960, let me know.
      --
      1998 Volvo S90 SE (Black Cherry) 264,000+km







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