somedude1717

Hey there guys..I have a few questions about an em1 project that I've been working on. I picked up a 2000 civic si with a blown b16 and decided to swap in a Jdm b18b (obd2a I believe). Currently using the em1 harness on the b18b with an obd2b to obd2a harness adaptor to run p75-a04 (obd2a) from a 99 Integra ls. I currently have no spark and not sure what the problem is. Do I have to change anything with the distributor as far as wiring to get this to fire? from what I've been reading there is no immobilizer in this p75-a04. Any input to this issue would be much appreciated

Former User

Does the fuel pump prime?

Any CEL codes?

Is fuse 9 blown?

somedude1717

The fuel pump does prime and there is one code which is p1298 eld high voltage when running the p75. My buddy let me try his p2t-a11 ecu and the car fires right up but idles rough and bogs under load. And no there are no blown fuses

Former User

Why was this^ not included in the first post? What do you think it means?

somedude1717

I tried the p2t minutes after making the first post and I would assume I bought a bad p75, correct?

Former User

It would seem so, if after installing the P2T, you reinstalled the P75 and obtained the same result of no spark.

somedude1717

Finally found another p75-a04 and same result..no spark. Any suggestions?

tony_2018

There is a wire that needs to be jump in order for the integra ecu to run the car. Does your jumper harness have that wire re-pinned already?

somedude1717

Do you know which wire needs to be jumped? I assumed the jumper harness would be ready to go but it's possible that it's not.

tony_2018

OBD2B ECU Quick Reference Wiring Diagram For Swaps

http://technet.ff-squad.com/wiring.obd2a.htm