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» Northern California Ford Owners     » Automotive   » Tech Talk   » Code 91

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Author Topic: Code 91
stang up
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Have code 91 koeo test .oxigen sensor problem,fuel pressure out of range,or injectors out of balance. So fuel pressure is at 31 32.I have liggter brown top injectors unknown # maybe 35# 36# .gonna swap oxigen sensors from other foxbody.any ideas?

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88 gt
92 gt
68 cougar xr7
87 Gt roller build in the works
And a bunch of chevys
Posts: 186 | From: RICHMOND SAN PABLO VALLEJO OG | Registered: Jul 2011  |  :
JZTRK
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I had the same issue on my 90 30# red tops put 2 new bosch sensors code went away and it ran better

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ANY THING PAST FIRST AND IM BREAKING THE LAW !!!

1990 lx Hatch (sold) 2014 GT Track Pack (sold) 2016 GT350 (sold)
1 of 16 2019 kona blue GT350R
Posts: 771 | From: My 44 Magnum says HI | Registered: May 2007  |  :


 
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