Posted this in the CRX forum but not getting any info...

Okay, we started with a 91 HF. Swapped in a 92 d15 from a DX hatch. No CEL'before the swap.
Basically just changed the block and IM / throttle body. Kept the HF dizzy and injectors. Same HF wire harness.
Stated getting a CEL (one flash) for oxygen? We kept the same o2 sensor with one wire and it LOOKS fine. CEL comes on after a few minutes sometimes and other times it won't come on till after an hour of driving. When the light comes on the motor runs rough.
Could this be a faulty o2 sensor?
The one thing different about the IM is on the passeenger side there is some kind of sensor with a white three wire plug and a vacuum hose. We plugged the vacuum line and left the plug undone.
Anyone have an idea what we need here?
Thanks for the help.

 

Looks like were on our own. WTF? Oh well I guess I will try to change the o2 cen. first. When walk had the car the o2 cen. wasn't hooked up was it ? He was getting the check engine light also. Maybe thats it. B-room $200.00 dollar fine from may15 to sept.15. What's up with that? That,s the only you can surf somtimes.
Later

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redfish &raquo;</TD></TR><TR><TD CLASS="quote">Looks like were on our own. WTF? Oh well I guess I will try to change the o2 cen. first. When walk had the car the o2 cen. wasn't hooked up was it ? He was getting the check engine light also. Maybe thats it. B-room $200.00 dollar fine from may15 to sept.15. What's up with that? That,s the only you can surf somtimes.
Later</TD></TR></TABLE>

sorry, i'd really like to help with my $.02 but what the **** are you trying to say?

 

it's code

 

What's up what do you think about the o2 cen?

 

It's the only thing I can think of. Try it and see what happens.