so im in the middle of swapping in a OBD1 gsr into my EJ1. and im having a few issues.
1st. passenger shock tower connectors i have a spare 2pin connector from the gsr harness. i have no idea where it goes
2nd. my radiator hoses. i have the b series hoses but they are bigger than my radiators outlets. is there hoses that are made for ths or do i need a 94-97 del sol vtec radiator?

 

Did a LS swap into a friend EG using the B-series radiator hoses. I just got worm clamps and tighten them real tight. No leaks yet.

 

I'm wondering if the extra connector is for the abs system connection

And for the hoses. I've seen people slide PVC pipe onto the Ls hose and then a smaller pipe on the civic hose and attach the tubes together.
Or you can get a half size Ls radiator

 

get hoses for a 99-00 SI

 

Is your harness OBD2? If it is ignore the extra connector.

 

I do not believe an OBD2 Teg harness will work in a OBD1 civic. yea, it may plug in, but stuff is wired diff in OBD2

 

If its an obd2 teggy harness it should be an extra 3 wire connector (Evap purge, and ckf wiring). Please post pics and I can determine better which harness you have. It's possible you may have an obd2 del sol harness

 

It's for the evap purge solenoid, that particular plug is unique to the GS-R. On all other Integra/Civic harnesses the evap purge wiring is part of the 3 large plugs, in the GS-R the IAB wiring is run there instead and the evap purge solenoid has it's own plug. If you don't have emissions testing you wont need this. If you have the original GS-R intake manifold and you would like the IABs (secondary butterflies to function, simply move pin A20 to A17 at the ECU.



That works, guys have been doing this for 20 years.

It does, it's also the easiest, cleanest way to drop an OBD2 engine in a '92 - '95 Civic or '94 - '95 Integra. See below:

 

It is an obd 1 harness. So the extra plug is for the evap purge solenoid?