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post #1 of 2 (permalink) Old 09-16-12, 01:57 PM Thread Starter
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97 ford aerostar code p0133 p1131

97 ford aerostar 4.0 pulls a code
p1131 o2 sensor bank 1 lean
p0133 oxygen sensor slow responce
if i replace the oxygen sensor should it fix these problems and what side is the sensor on please help need to get vehicle through inspection

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post #2 of 2 (permalink) Old 09-16-12, 05:20 PM
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Re: 97 ford aerostar code p0133 p1131

That's the passenger side. Check for vacuum leaks, PCV, exhaust leaks.

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