Pics of completed vtec OBD1 P72 ECU wiring - Honda-Tech - Honda Forum Discussion


Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Pics of completed vtec OBD1 P72 ECU wiring

Reply
 
 
 
Thread Tools Search this Thread
Old 04-11-2011, 04:19 PM   #1
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2011
Location: Florida
Posts: 160
Default Pics of completed vtec OBD1 P72 ECU wiring

If anybody could find(i could not) a pic of a OBD1 P72 ECU wired for vtec.
I would like a reference picture to help me out. i know where to wire it and what to wire but not really sure how it should look. also pictures of the sensors the wires run to would be great.
MeCrObS is offline   Reply With Quote
Old 04-11-2011, 05:16 PM   #2
Technical Hero
 
HondaPartsHero's Avatar
 
Join Date: May 2002
Location: Charlotte, NC, 28227
Posts: 9,842
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

HondaPartsHero is offline   Reply With Quote
Old 04-11-2011, 07:21 PM   #3
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2011
Location: Florida
Posts: 160
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

Holy Shizz! thanks man. By far the best pic/diagram i've seen. this should be a sticky or something.
MeCrObS is offline   Reply With Quote
Old 04-11-2011, 07:41 PM   #4
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2011
Location: Florida
Posts: 160
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

^Hondapartshero

I went to check out your website and found a Honda Acura OBD1 VTEC conversion swap harness.

Is this all the wires and everything i need to wire vtec from my ECU to my motor/sensors?
MeCrObS is offline   Reply With Quote
Old 04-11-2011, 07:49 PM   #5
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2011
Location: Florida
Posts: 160
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

one other thing hondapartshero. if im gonna have an aftermarket intake manifold, do i just not hook up the IAB? or do i need to chip/tune my ECU?
MeCrObS is offline   Reply With Quote
Old 04-11-2011, 07:51 PM   #6
Honda-Tech Member
 
phoxking's Avatar
 
Join Date: Feb 2010
Location: Orange County, CA
Posts: 751
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

IAB COLOR(A17)* isn't that the charcoal/vapor canister?
phoxking is offline   Reply With Quote
Old 04-12-2011, 01:24 AM   #7
Technical Hero
 
HondaPartsHero's Avatar
 
Join Date: May 2002
Location: Charlotte, NC, 28227
Posts: 9,842
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

Quote:
IAB COLOR(A17)* isn't that the charcoal/vapor canister?
No its the IAB solenoid and vacuum chamber



if you are using an aftermarket intake manifold you won't need the IAB wiring and you can just use the OBD1 VTEC subharness I sell, plus its cheaper. It includes all the wiring and connectors needed to basically plug and play. No need to chip the ECU as it won't throw a check engine light for the missing IAB's.
HondaPartsHero is offline   Reply With Quote
Old 04-12-2011, 09:26 AM   #8
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2011
Location: Florida
Posts: 160
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

Ok thanks hondapartshero. I will be buying that when I get off work today. Thanks for all the help
MeCrObS is offline   Reply With Quote
Old 04-12-2011, 10:12 AM   #9
Honda-Tech Member
 
jdmhondas4life's Avatar
 
Join Date: Apr 2011
Posts: 59
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

awesome diagrams !!!!!! really easy to understand and will help a lot of people!!!!
jdmhondas4life is offline   Reply With Quote
Old 04-12-2011, 11:31 AM   #10
Honda-Tech Member
Thread Starter
 
Join Date: Apr 2011
Location: Florida
Posts: 160
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

Yeah that is by far the best pic/diagram I've ever seen
MeCrObS is offline   Reply With Quote
Old 12-14-2012, 04:56 AM   #11
Trial User
 
Join Date: Dec 2012
Posts: 1
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

Best diagram I've seen. Just what I needed. Thanks man!
MrDoza is offline   Reply With Quote
Old 08-05-2014, 08:14 AM   #12
Honda-Tech Member
 
Join Date: Dec 2013
Location: Portugal
Posts: 321
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

o2 sensor ground on obd1 pinouts is D22

can i connect the o2 sensor ground on ( A23 or A26 or B2 ) ?
gabrielsousa is offline   Reply With Quote
Old 08-05-2014, 01:50 PM   #13
Honda-Tech Member
 
tony_2018's Avatar
 
Join Date: Nov 2005
Location: AIIIIYAAAAHHH!!!!!
Posts: 9,689
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

Why would you deviate from what honda put in place?
tony_2018 is offline   Reply With Quote
Old 08-05-2014, 03:00 PM   #14
The Grumpiest
iTrader: (4)
 
grumblemarc's Avatar
 
Join Date: May 2008
Location: Oak Ridge, TN, USA
Posts: 28,335
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

Quote:
Originally Posted by gabrielsousa View Post
o2 sensor ground on obd1 pinouts is D22

can i connect the o2 sensor ground on ( A23 or A26 or B2 ) ?
Why?
grumblemarc is offline   Reply With Quote
Old 12-29-2016, 09:12 AM   #15
Honda-Tech Member
 
pitti's Avatar
 
Join Date: Sep 2012
Location: trenton one.
Posts: 19
Icon5 Re: Pics of completed vtec OBD1 P72 ECU wiring

Quote:
Originally Posted by HondaPartsHero View Post
missing brown dot body ground
pitti is offline   Reply With Quote
Old 12-29-2016, 09:54 AM   #16
Technical Hero
 
HondaPartsHero's Avatar
 
Join Date: May 2002
Location: Charlotte, NC, 28227
Posts: 9,842
Default Re: Pics of completed vtec OBD1 P72 ECU wiring

The body ground goes to a ground on the body or engine, although you could tap into an ECU ground it's easier to just use a good know body ground location
HondaPartsHero is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
WTB: OBD1 P72 ECU Xperience Want to Buy 1 08-24-2016 06:25 PM
WTB: USDM P72 OBD 1 ECU termite587 Want to Buy 0 08-23-2016 03:17 PM
WTB GSR oil pan P72 cprlover Want to Buy 3 07-05-2016 04:41 PM
Wtb: obd2a GSR ecu iBear Want to Buy 3 03-25-2016 08:56 AM
WTB: OBD1 P72 GS-R ECU b18cEK Want to Buy 10 10-07-2015 12:44 PM


Tags
91, a17, board, circuit, civic, color, diagram, ecu, o2, obd, obd1, p72, sensor, vtec, wire, wiring

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 01:07 AM.


 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: