Ok, I have a

1990 Civic Si hatchback

Motor: jdm b16a obd 0

Ecu: virgin (not chipped) pwo obd 0

I currently have a DC Sports 4-1 header, that 4-1 header only has one bung hole for the o2 sensor.

i have a obd 0 motor which needs TWO o2 sensors. at the moment i dont have no o2 sensor connected and i dont get any cel codes...

i know for a fact thats not normal...but why wouldnt it pop a cel?

I've used an obd 0 pr3 ecu and it still dont pop any cels...

if you can help me solve this problem i'd really appreciate it. thanks!

 

bump b4 sleep.

 

have you drove it or just started it up?

 

I drive it around it runs and everything. Seems like it runs good, but than again the o2 sensors aren't connected. So i'm expecting it to run better. their's a o2 sensor on it but the wires are cut so it's useless.

 

Try driving at highway speed for about 10 miles. It may be around town you're just operating in open-loop.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mar778c &raquo;</TD></TR><TR><TD CLASS="quote">Try driving at highway speed for about 10 miles. It may be around town you're just operating in open-loop.</TD></TR></TABLE>



o2 codes wont happen (usually) the second its turned on.

 

i drove it for about 60 miles last night and still no cel, i know the bulb on the cluster works since i had a cel code for my distributer acting up, it ended up being the coil but this o2 sensor things is getting me nuts.