90civic dx mpfi i took out the heders now that i put it back it some times it trows code 1
i never took the o2sensor out the heder

 

when do you want to go to the track


[Modified by daniel89civ, 10:06 AM 8/22/2002]

 

Did you perhaps install a AF gauge> I did and it does the same thing, make sure all your connections are soldered and reset the ECU. My gauge reads lean whenever Im accelerating hard and then blink goes the CEL? Dont get it. But who cares, gonna swap it out and boost the b20!

Good luck

Blaze

 

CODE 1 could be the ECU also....try a known good one.