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90 xj running rich and rough

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Old Dec 25, 2019 | 11:27 AM
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cruiser54
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Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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Originally Posted by Ace&Wrench
We just got a 90 Cherokee with a 4.0 for off roading in Arizona. It was running really rough. After seeing your post I went out and checked the Vacuum line to the Map Sensor. It was off. Plugged it in and the Cherokee is running good now.
where are you in Arizona?
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