I just done a si intake,distributer,resister box,and ecu swap onto a d15 in a 91 crx.I've posted this question before,but my ecu is throwing a code 3,map.I tried a new map sensor and drove it up the road and about 3 rd gear the light came back on.so can anyone help e out here?ishere a vacume diagram i can look at or something?and no i don't have the map and tps plugs mixe up.

 

Search and see what the url's for cel codes. I forget the url's and what MIL cel #3 stands for.

Have you reset ecu since install?

 

code3 is map sensor.and ye i have reset it.