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Old 12-14-2012, 12:55 PM   #88
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Join Date: Dec 2012
Fan#: 107311
Location: San Diego, CA
What I Drive: 2004 Focus

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First I want to thank everyone for the posts. I had to replace my PCV hose and this forum was a huge help.

Unfortunately, after I replaced the hose, my idle is too high, (1100). I've checked for vacuum leaks and double checked everything. I took it to a shop for a 1 hour diagonstics and they did not find anything. When I replaced the hose, I didn't put on new intake gaskets, so I decided to try new gaskets for the intake and also a new PCV value. Still high idle. I replaced the TPS today and it is still a high idle. It feels like the rpm hangs or doesn't return to normal while I'm driving.

I am getting a code, P0507 (high idle) DUH!

Any help and suggestions would be great.

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