1990 240sx: running poorly

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ta_ma3750
Posts: 55
Joined: Sat Nov 03, 2007 11:56 am
Car: 1990 s13

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i have a 240sx with a redtop sr20 in it and it was running fine and then i replaced the fuel filter with a 300zx fuel filter and now it runs really rich and it seems like it wont go into closed loop operation, and when i hit the gas it hesitates then bogs and barely runs. if you could point me in the right direction that would be great


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