P1151 P1131 - 98 Explorer V8 | Ford Explorer Forums

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P1151 P1131 - 98 Explorer V8

shugrhill

New Member
Joined
March 26, 2010
Messages
4
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City, State
Coatesville, Pa
Year, Model & Trim Level
98 Limited - 97 Mountnr.
My Explorer shows both codes P1151 & P1131. Sometimes it idles rough but not bad, and the acceleration is not what it used to be. I cleaned the MAF sensor and cleared the light with a scanner but it keeps coming back on. P1151 showed up first and when I drive it longer P1131 shows up also. Any ideas? Thanks.
 






My Explorer shows both codes P1151 & P1131. Sometimes it idles rough but not bad, and the acceleration is not what it used to be. I cleaned the MAF sensor and cleared the light with a scanner but it keeps coming back on. P1151 showed up first and when I drive it longer P1131 shows up also. Any ideas? Thanks.

1151-Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 2

1131-Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1

not sure what they mean, but hope it helps.
 






Yeah but I don't know if the 02 sensors are bad or if something is causing them to give a bad reading.
 






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