The car was originally a 95 Integra LS(automatic). We dropped in a 97 JDM B18CR. Question is, must I change the harness that goes from the shock tower to the ecu? I am getting codes 6, 10, 21/22(vtec wire not hooked up yet). The car cranks, but wont start. Any help, thanks.

 

Here are what your codes mean:

6 -Integra ECT Sensor (Engine Coolant Temperature) defective circuit or unplugged / defective sensor

10 -IAT Sensor (Intake Air Temperature) defective circuit or unplugged / defective sensor

21 -VTEC Solenoid Valve defective circuit or unplugged / defective solenoid valve
* invalid code for non-VTEC engine
** invalid for V6 engine

22 -VTEC Oil Pressure Switch defective circuit or unplugged / defective oil pressure switch
* invalid code for non-VTEC engine

So you will need to find out why your throwing the codes 6 & 10 maybe you didn't plug them up. :dunno: You will also have to wire up vtec, go here for the ECU pin-outs www.hybridgarage.com

 

Well, the thing is, the plugs ECT and IAT are plugged in.
My friend used the original engine harness, out of the LS automatic. He said he spliced few wires here and there to accomodate for the JDM motor. However, we ended up having 4 plugs by the schock tower, which from I remember Integra's have 3, as out of the 4, 3 are plugged in. Also, my friend is saying that the ECU harness for the LS automatic is different from that of a GSR or Type R. Eh, I'm thinking of swappin out the whole engine harness and use a gsr one or somn..Well, any other advice, thanks.