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90 da6 w/ b16a swap running very very rich

Discussion in 'Integra' started by saosin600rr, Jul 11, 2010.

  1. saosin600rr

    saosin600rr New Member

    Likes Received:
    Jul 23, 2009
    i bought a 90 integra with a b16a swap that is running very rich. at idle it has lots of black smoke and fuel coming out of the exhast and only gets like 12 mpg when being nice. its like when you light an oxy aceteline torch w/ no oxygen and all the black flakes fly everywhere

    -obd0 b16a w/ pr3
    -timing and ignition are good
    -have 3 diff pr3's which dont make a difference
    -only one o2
    -no check engine, no codes
    -can unplug multiple sensors w/o getting any change in idle or a check engine light
    -check engine and codes do come up when certain sensors are unplugged.

    sensors test good, and everything SEEMS to be in order other than being able to unplug sensors w/ no light. and i dont think that only 1 o2 would cause that much of a problem, there has to be some sort of other underlying factor causing all this.

    any advice or direction would be greatly appreciated
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