 OT 924s idleing ruff |
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| justdrive914 |
 Nov 22 2008, 09:13 AM
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#1
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Member  Group: Members Posts: 88 Joined: 31-July 08 From: Asheville, NC Member No.: 9,374 Region Association: South East States  |
My 87 924s is idleing really ruff and has been for about 3 months now I hardly drive it now so it did'nt matter. Id like to start driving it more now, I'm wondering if anybody has a clue on what could be causing it, its got a new cap rotor wires plugs.
Thanks andrew |
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| jasons |
Nov 22 2008, 09:20 AM
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#2
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Jackstand Extraordinaire Group: Members Posts: 2,002 Joined: 19-August 04 From: Scottsdale, AZ Member No.: 2,573 Region Association: None |
Maybe...... The fuel pressure regulator at the back of the fuel rail. My 944s2 had a bad one and it leaked out of the vacuum line that plugs on the FPR. It was easy to find, I just pulled the vacuum line off the FPR and it spit fuel out the port. SO, it was fattening up the mix at idle dumping raw fuel into the vacuum lines.
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| scotty b |
Nov 22 2008, 05:11 PM
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#3
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rust free you say ? Group: Members Posts: 16,375 Joined: 7-January 05 From: richmond, Va. Member No.: 3,419 Region Association: None |
(IMG:style_emoticons/default/agree.gif) FPR, Vacuum leaks will be the first 2 things to check. You have a new cap and rotor so how about the wires ??
Also, does it idle rough ALL the time or only when cold/ only when warm ? |
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