harness question 97 civic
#1
Honda-Tech Member
Thread Starter
Join Date: Mar 2013
Location: Miami fl
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
97 wiring harness for b20 ?
I have a 1997 civic ek coupe with a d15y7 non vtec engine I plan on swapping that out real soon and replacing it with a b20b engine can I use the stock harness to the car and if so what exactly has to be done or changed ?!?!
#2
Technical Hero
Join Date: May 2002
Location: Charlotte, NC, 28227
Posts: 9,876
Likes: 0
Received 28 Likes
on
20 Posts
Re: 97 wiring harness for b20 ?
First off is the B20B, is it USDM, what ECU, and if so does it come with a wiring harness?
If its a USDM B20B:
-use the engine harness it comes with and the B20B or OBD2 B18B USDM ECU
-wire up the secondary 02 to the ECU
If its a JDM B20B using a USDM ECU:
-use your engine harness with the following modifications - 3 to 2 wire IACV conversion, extend secondary 02, either convert your IAT plug to round style or place your factory IAT into your intake arm, bypass CKF (crank fluctuation sensor)
If its a JDM B20B using a JDM OBD2 ECU:
-use your engine harness with the following modifications - 3 to 2 wire IACV conversion, either convert your IAT plug to round style or place your factory IAT into your intake arm (this ECU will however not connect to an OBD2 emissions scanner if your state has those)
If its a USDM B20B:
-use the engine harness it comes with and the B20B or OBD2 B18B USDM ECU
-wire up the secondary 02 to the ECU
If its a JDM B20B using a USDM ECU:
-use your engine harness with the following modifications - 3 to 2 wire IACV conversion, extend secondary 02, either convert your IAT plug to round style or place your factory IAT into your intake arm, bypass CKF (crank fluctuation sensor)
If its a JDM B20B using a JDM OBD2 ECU:
-use your engine harness with the following modifications - 3 to 2 wire IACV conversion, either convert your IAT plug to round style or place your factory IAT into your intake arm (this ECU will however not connect to an OBD2 emissions scanner if your state has those)
#3
Honda-Tech Member
Thread Starter
Join Date: Mar 2013
Location: Miami fl
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
Sounds great how do I convert the 3 wire iacv to a 2 wire ?!?!
And I will be using a obd1 p28 with a obd2 to obd1 jumper harness
And what about alternator distribtor etc ??
And I will be using a obd1 p28 with a obd2 to obd1 jumper harness
And what about alternator distribtor etc ??
Last edited by Former User; 12-19-2014 at 06:09 AM. Reason: Learn to edit your posts
#4
Re: 97 wiring harness for b20 ?
The forum has a FAQs sticky (see link in my signature). Read threads there to answer most of your questions.
#5
Technical Hero
Join Date: May 2002
Location: Charlotte, NC, 28227
Posts: 9,876
Likes: 0
Received 28 Likes
on
20 Posts
Re: 97 wiring harness for b20 ?
Sounds great how do I convert the 3 wire iacv to a 2 wire ?!?!
FAQ sticky has a tutorial for this
And I will be using a obd1 p28 with a obd2 to obd1 jumper harness
Same as this If its a JDM B20B using a JDM OBD2 ECU:
-use your engine harness with the following modifications - 3 to 2 wire IACV conversion, either convert your IAT plug to round style or place your factory IAT into your intake arm (this ECU will however not connect to an OBD2 emissions scanner if your state has those)
And what about alternator distribtor etc ??
Will plug and play as long as your distributor has the same connectors
FAQ sticky has a tutorial for this
And I will be using a obd1 p28 with a obd2 to obd1 jumper harness
Same as this If its a JDM B20B using a JDM OBD2 ECU:
-use your engine harness with the following modifications - 3 to 2 wire IACV conversion, either convert your IAT plug to round style or place your factory IAT into your intake arm (this ECU will however not connect to an OBD2 emissions scanner if your state has those)
And what about alternator distribtor etc ??
Will plug and play as long as your distributor has the same connectors
#6
Honda-Tech Member
Thread Starter
Join Date: Mar 2013
Location: Miami fl
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
harness question 97 civic
okay so i have a 97 civic i believe is obd2a. it has a d15y7 in it non vtec. i plan on swaping that engine out tomarrow and putting in a jdm b20b i know i can use my same harness that comes with the car, but what will i have to change or splice wires on ? alternator distribtor injectors IACV ? i know how to preform the iacv 3 to 2 wire change. anything else ? god i wish it was plug and play ! ?!?!?!?!?!?!?!?
#7
Re: harness question 97 civic
Only one thread is allowed per topic. Related threads merged.
Before you make any more posts in this forum, read through threads in the FAQs sticky.
Before you make any more posts in this forum, read through threads in the FAQs sticky.
Thread
Thread Starter
Forum
Replies
Last Post
Kirk@SyndromeAuto
Acura Integra
4
12-13-2006 05:24 PM
MickeCTR
Hybrid / Engine Swaps
3
06-10-2005 06:21 PM