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fuelsys2 --?

Old May 26, 2015 | 11:02 PM
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Behindblueyes's Avatar
Behindblueyes
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Default fuelsys2 --?

I know this might be a really easy question so sorry. When I hook up the obd2 my fuelsystem1 reading is cl. but my fuelsys2 is --? is this normal or should it also say closed loop thanks.
 
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Old May 27, 2015 | 12:34 AM
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horatio102
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Do you have upstream O2 sensors in both sides? I'm a bit rusty on my gas engine emission systems off the top of my head.
 
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