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  #1  
Old 11-02-2008, 04:56 PM
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lOW COLD IDLE 2.3

Hi guys have bought a 92 190E 2.3 that has a low idle when cold about 450-500rpms then warm 600-700.Whats the things needed to be checked out?

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  #2  
Old 11-02-2008, 04:58 PM
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The cold start valve ?
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1993 190E 2.6 135k
1989 Ford Thunderbird SC 5 Spd 79K
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  #3  
Old 11-22-2008, 12:48 AM
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Yes

Will try the cold start valve next!

Thanks
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  #4  
Old 11-22-2008, 05:47 AM
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Location: Northern Va.
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Forget the cold start valve, it does what its name implies. Its controlled by the fuel pump relay.

Check the idle air bypass valve, it's cylindrical with two hoses and a two pin electrical connector. Make sure it's clean inside. The engine temp sensor also needs to be checked. Its controlled by the idle speed stabilization control unit. It gets a temperature signal from the ECU and that signal is also sent to the FPR.

Get the repair CD's and check the schematics.
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