1131 97 exped

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1131 97 exped

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Ford Forum >> Ford Trucks, Ford Vans & Ford SUV's >> Ford Expedition >> 1131 97 exped

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1131 97 exped - 1/19/2008 12:59:09 PM

Philywilly03

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I have a 97 5.4 with a CEL on and 1131 stored. The code reader I'm using is pretty plane and has no deffinition for this code. Every once and a while I get a rough idle for about 30sec then it clears up. I had it idleing for about 10 min last night and it seamed to be putting out a fair amount of smoke. I took it for a drive and then let it idle again with the same amount of smoke coming from the tail pipe. Around 5k miles ago I replaced the sparkplugs(motorcraft premium) and coil boots. It also doesn't seem to have the power that a 5.4 should. Any help would be great.
-Phil

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RE: 1131 97 exped - 1/19/2008 4:03:23 PM

btexpress

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P1131 indicates the PCM is correcting the fuel mixture for a lean condition, bank 1. One common vacuum leak is in the PCV system, the rubber elbows degrade and will suck a hole in the rubber. Especially on the rear of the intake, just below the idle control valve.

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Dennis W
www.blueovaltechs.com
http://blueoval.myminicity.com

(in reply to Philywilly03)

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