And I dont really know why, my oil is fine, I dont really know how to check the codes. What else could it be? I had to convert from obd0 to obd1.. the o2 sensors were messing it up a while back, but they were fixed, could they have effed up somehow?

thankss

 

http://www.c-speedracing.com/faq/06.php
Try doin that (it's pretty easy) and tell us what codes ur gettin. Then itll be really easy to find the problem (hopefully).

 

Alright thanks a lot, I will check it tomorrow

 

They dont have my year on the codes list, I have a 99 Civic Si and its not on any of those lists, is there another website with what the codes mean for my car?

 

they are the same for the 99-00 Civic as the ones listed in the chart.
only difference is 48 is the Primary O2 sensor failure not LAF failure (which is basically the same thing anyway)

 

have u noticed any problems since it came on.

 

I have not noticed a difference, Im going to check it after school

 

Okay I did the little test 3 times and I got 61 everytime.

61 = Oxygen Sensor, Heated - Sensor 1 (Primary) high voltage, low voltage, or slow response

What do I need to do with this?

 

wait... which is it man?
which ECU are you running? that's all that matters.

 

The dude that had the car before me blew the b16a2 that comes in it, and swapped a b16a into it.

sorry about the confusion