after my multi point fuel injection swap my car (88 crx) idles a 1500 rpms (wtf) i dnt lik tht ....so i was jus under the hood looking around and jus show happen to see tht my o2 sensor was unplugged i have been looking 4 the plug to it 4 about 20mins anyone kno what color wire the o2 senor runs to ??or how to re wire it ..or cud it b bcuz i have a oversized throttle body ??

 

its a single wire plug.

 

yea i kno tht but i cant find it bout to wire it str8 to the ecu

 

The O2 sensor won't cause an idle issue like this...O2 sensors fine tune the fuel mixture under certain conditions.

Your problem is more likely caused by a vacuum leak.
Most common is a too tight throttle cable or sticking throttle body.
Another potential cause for your issue could be gasket related.
Either the throttle body gasket (you did use a new gasket, right?)
Or possibly the intake manifold gasket.
A leak at either will cause a high idle condition.

 

i think its the throttle gasket will change 2marrow thankz