i just put a obd2 itr in my obd1 93 del sol si... is there any wires that need to switched or is it simply plug and play? it starts and runs but it runs a little rich and vtec has a mind of its own

 

what ecu are you running in it

 

obd1 gsr p72

 

I'm kinda in your situation. Did you use the ITR engine Harness in your delsol? I think you jsut need to run a P73 with a jumper harness or get a chipped P28.

Oh yeah, if you end of selling the OBD1 P72, Send it my way. haha

 

i do have a chipped p28, but im still in the same situation thats why i was curious about the wiring

 

You use the obd2 ITR harness. Ecu is up to you, you could either get a jumper harness from obd1 to obd2b and run the stock itr ecu or get a stock ITR basemap burned onto your chipped p28. I would use the obd1 ecu since you already have it and its gives you the option to tune and upgrade