Engine swap gone bad HELP!!!!!!!!!!!!

[Ntegration]

I finally got my b16 and I thought everything was kewl. The only problem was that the o2 sensors were bad. Then they told me that the exhaust manifold was from my LS engine and needed to change it to the jdm exhaust manifold cause of the two o2 sensors on the jdm one. So They've had my car for a week now and they still arent' done with it. It's starting to piss me off and for the last two hours i've been online looking for anything and everything that will help me find out how to wire the o2 sensors up right. If anyone out there can help me find a diagram or explain to me what wires go where, i'd be very gratefull. HELP!!!!!!!!!! I have a 91 integra with a b16a1.

[Ricochet]

'91 LS's weren't OBDII, so there aren't two o2 sensor holes in the manifold (which the OBDII B16 needs, one before the catalytic converter and one after). Where did you buy your engine from? If it's from a reputable company like hmotorsonline.com or inlinefour.com it should have come with a stock exhaust manifold. If not, well then yes you'll have to buy one for the engine. Go to www.car-part.com and look up an exhaust manifold for you engine, and it will show a list of junkyards close to you along with their prices/availability. Good luck bro.