i just swaped a b16 into my 91 dx hatch, everything with the swap is done but its having a running problem. it runs good when its cold but when it warms up its like it has no power or no gut, its not throwing any codes, the injectors are fine, ive checked everything else i dont know what do to

 

do you have good conducting ground wires?

 

You should try the O2 sensors. I had the same prob with my 88 hb w/ B16 swap. Ran like a sob when cold,...as soon as it warmed up it would seem not up to par. Not shityy, just not up to par. I could really tell when I was at high rpm and high speed. It just sounded weak and felt like it had 0 torque. I switched the o2's around and now its ****! Just a thought.....Good luck Bud!