99ls in ek harness problem

[$$swizz$$]

b18a1 in ek wat kind of harness to use cause i was told to use a harness from 1996-1998 ex but wanted to get more opinions

[jealous1shateric]

thats ur best bet or ur stock one would of been ok i thing u have to wire the 2nd 02 sensor into ur ecu now

[b16eg684]

thats ur best bet or ur stock one would of been ok i thing u have to wire the 2nd 02 sensor into ur ecu now

you use the harness that came in your car ORIGINALLY...if its a 96-98 you use that year harness and you do not have to wire the 2nd o2...just plug the main one to the o2 sensor...get yourself a obd2a/b jumper harness(depending on what year your car is), and run obd1 and your all set

[alexPR]

B18a1 is not a 99 ls motor, and u could use ur stock harness