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91 Civic DX
Hey everybody,
Got a 91 civic with a 1.5l stock motor, and throttle body injection. I've been shocked to get only about 30mpg. And that's babying it. I did notice that the tailpipe gets a black soot on the outside edge which wasn't as heavy on cars I've had that got better mileage. (My old 89 civic SI used to get 37mpg in the same driving conditions and I would have expected it to do worse with the shorter gears)
I'm thinking that the settings on the computer are not for economy. Any ideas on how to change that? I've heard you can use a spacer on the O2 sensor and trick the computer a bit. How far would one space it? What about computer settings? I'm pretty mechanical, and can fabricate most anything in metal, but the electronics take some doing for me.
Any help would be appreciated
Mike
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