the car is obd-1 converted '90 dx crx

d16z6/v-tec
(xenocron chipped) p28 ecu


car has always thrown code #41 and has had aweful gas mileage and would cut out @ 4k rpm (like a rev-limiter).... today i replaced the oxygen sensor (with a bosch oem type from auto zone, i know but ive heard mixed reviews, and couldnt afford oem sensor)

oh and i pulled the neg. terminal to clear the codes....

since i replaced the oxygen sensor, the c.e.l. light stays solid and now i cant pull codes with the brown wire, Why??

and also now the car will only go up to 3.5k rpm instead of 4k rpm (but car does feel a lil smoother!) anyone know why the car would now cut out @ a lower rpm??

i can use all the help/advise/trouble shooting you guys can provide.

the car is my daily driver, and isnt the best situation; having bad gas mileage and a low "rev-limit"


thanks for reading, and hopefully helping me fix this problem!

 

Crank position sensor , get a new dizzy

 

damn i hope its not the dizzy!! ill start looking in2 the cps..... could it be anything else other then the cps? i dont wanna start throwing parts at the car.