adjust a/f withought messing with ecu

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K2e2vin

Senior Member
is there a way to make the car run leaner without having to mess with the ecu? my car is running rich right now; d15b2 with bumped compression(dont know wat ratio, but its about 210psi when i did compression test), short ram intake, and straight pipe.
 
only things i can think of are hotter plugs and a new o2 sensor :dunno: ...your not really going to be able to touch the A/F itself

EDIT:get a SAFC or a VAFC
 
dont know, havent looked at it but its a stock obd-0 dpfi ecu for crx dx. im about to make a ghetto fpr out of brass fittings, you guys think fuel will react with brass or should i use some other metal(ie steel)?
 
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