i was being bored today and i was scrubbin the interior down. and i took the ecu out and i was like...wtf a P2T ecu. i thought a B18C is a P72. so i thought i had a OB1 ECU. i went inside and i did a search...its a 99-00 Si ecu. great. the people who did my swap jacked my ecu or something. so i i have a to get a OB2B P72. the question is...is there a different from the OB2A and OB2B ecus? i know my harness is meant for a OB2B (99 Civic). my motor is a 98. will there be any problems?

 

You need the OBD2B ECU because of the ECU plugs. But OBD2B P72s have immobilizers that you will have to remove (which I know of a writeup). You can always use an OBD1 or OBD2A P72 if you get a jumper harness.

 

is it hard to remove the immobilzer? the obd2b to obd2a harness how much they usually run for.

 

Not sure how much the jumper harnesses run for. Immobilizer removal is quite simple with a soldering iron.

 

i tried to do a search on yahoo for a ob2b to ob2a harness...nothing came up =/ i hope the Si ecu wont mess up my motor.

 

Search Honda Jumper Harness

The P2T can do some harm since it is supposed to run a 1.6L engine. You'll run a little lean.

 

yess i found it. i really apreciate it man.