got a 96 hatch with a b18b in it runing obd 2 LS ecu gettin codes 3 6 7 14 54 do you guys know what could cause me to get all these codes?
also the car has a hard time starting up and when you floor it it bogs badly...

 

3 is map sensor
14 is iac make sure the plugs are not swapped.

did you reset ecu?? do you have the
54 is ckf check plug by alternator/crank pulley

 

the iac a three wire plug?
I cant go look right now the car is at my friends house...

 

3-map sensor
6 ECT - water temperature sensor
7 TPS - throttle position sensor
14 IAC (EACV) - idle air control valve
54 CKF - crank fluctuation sensor

map sensor, make sure its plugged in. I just swapped a JDM b18b in my 97 cx and it runs like poop with codes (54, 65, and 07)

ECT, make sure its plugged in, right next to the theromstat

TPS...im having the same problem, cant help you there. Either try adjusting it or replace it. Ill tell you where i get with mine

IACV, depends on what civic you have, the vtec civics have a 2 wire plug i believe, and the non (like me) have a 3 wire plug. Your b18b has a 2 wire plug there is a sticky explaining on how to swap all this over. You need to do this i did it in about 5 min, no more code 14

CKF...same problem also. My motor is a JDm motor, so thats my problem. Im pretty sure that jdm motors dont have CKF sensors but not 100% positive.

 

it looks like someone messed with the harness wires and unwrapped some of them. I was just thinking of getting another engine harness and putting it on would any civic/integra harness work? OBD1? OBD2b?

btw car is a 96 cx with a b18b and a OBD2a Ecu..

 

That iac error could be because of your vacuum lines too. Happened to me once after I changed my oil and it turned out to be the line from the cruise control to the back of the intake manifold.

 

would any civic/integra harness work? OBD1? OBD2b?
btw car is a 96 cx with a b18b and a OBD2a Ecu..

 

You need a 96-98 civic cx,lx or dx engine harness preferably manual or you'll have to change the iacv plug, and you will have to lengthen a few wires to reach the sensors on the ls motor. An ex harness will work too but you'll have a couple extra plugs and it will probably cost a little more. The only other harness that would also work is the 96-97 del sol harness. And the only one you may not need to lengthen anything is a del sol vtec harness off a b16a3, but this will definately be the most costly harness and is pretty hard to find.