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2000 Subaru Impreza 2.5rs
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1 Posts
Discussion Starter #1
Over Christmas I got me an obd II scanners my 2000 impreza seams to be running really rich and the AFR is 22.05:1 at idle and the just seams crazy high to me for some reason I have tried looking around the site for a couple days now and can not find any help one this. Any help would be awesome!
Mods = cheapy intake(was on there when I bought the car) exhaust and lowered. :confused:
 

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95/99 Brighton STi
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2,945 Posts
22:1 is lean, super lean! At idle, the AF ratio should be cycling back and fourth averaging at 14.7:1

you probably have a bad upstream o2 sensor
 
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