Question on wiring to a European EP3

[sCorpse]

Hi there!

I got myself a used Hondata ECU from a JDM PRD unit from a 2004 EP3 (Civic R).

I drive a European (GB make) 2002 EP3.

Now i want to switch the ECU with the Hondata ECU which i?ll get soon. I?ve read about the wiring to do to get things working and have questions.

I know that i need a broadband lambda because the UK model has only a narrowband lambda built in, so i ordered a BOSCH LSU 4.9.

First question: Is that the correct lambda and will it meet the requirements for the Hondata ECU. Lambdawindow on this lambda is from 0,65V - infinite.

Second question regarding wiring:

The wiring instrucion on hondata.net sais, i have to connect A22 to the A2 connection. Well, A22 is a unused slot in the UK version harness. Do i have to make a new connection from the unused A22 slot to the A2 (which seems to be pretty hard to do with big fingers) or are there other ways to get a switched 12V to the ECU?

If not, could please provide a how to. I don?t have special crimping tools which would make things even harder for me.


Third question: SMOG test! I think i will fail the smog test with unplugged secondary o2 sensor, right? Do i have to find a good ground point and connect it to the E4 slot to keep my sec. o2 sensor up and running?

Lots of questions, I know. :-)

Thanks for your time!

[Spunkster]

For this type of question, you will need to contact a UK dealer such as CPL racing since they have experience with this type of conversion.

[sCorpse]

Unfortunately they wont give me any information becuase i didnt buy the ECU at CPL Racing... :roll:

[kistian]

hi

to your question about this....

you can use A2 or A3 for suply 12v to A22 and for the negative for the wideband lambda you need to use a wired method, not ground, the metter method is using the E4 wire

scheme for not used the secondary lambda:


internal shunts for keep the original harness:


scheme for use the secondary lambda:


this is my information about the adaptation, very very extended and you can do it without modify your harness: http://www.foroctr.com/viewtopic.php?f=16&t=489

this works good on a PRB, I think the PRD is the same scheme as PRB

if the admin of the site wants this in English, I can post it goodly for all you

[mivec24]

Can you post in english i am having the same problem.I have an ecu that would work for type s but i have the jdm spec ep3.I am not seeing crank or cam angle what would i need to change for the type s ecu to work on jdm type r

[rikitaun]

Can you post in english i am having the same problem.I have an ecu that would work for type s but i have the jdm spec ep3.I am not seeing crank or cam angle what would i need to change for the type s ecu to work on jdm type r

http://www.hondata.com/techk20-ctr-o2wiring.html