Need to identify this ECU

Thread Tools
 
Search this Thread
 
Old Feb 7, 2005 | 08:51 AM
  #1  
c_buz's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2004
Posts: 305
Likes: 0
From: Somewhere in, canada
Default Need to identify this ECU

I believe it's a 88-91 CRX/SIr ecu OBD0. This came out of my B16 hatch.
DOES THIS MEAN i HAVE AN OBD0 motor? Can I use any other ECU with this motor? What are the gains of swapping ECU's?



Reply
Old Feb 7, 2005 | 08:52 AM
  #2  
EP3_05's Avatar
Member
 
Joined: Mar 2001
Posts: 3,668
Likes: 1
From: West Chester, PA, USA
Default Re: Need to identify this ECU (c_buz)

It is a chipped OBD0 ecu. What is the code on the label on the side of the ecu?
Reply
Old Feb 7, 2005 | 08:57 AM
  #3  
c_buz's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2004
Posts: 305
Likes: 0
From: Somewhere in, canada
Default Re: Need to identify this ECU (91civic)

Ohh sorry the code is PR3 and it is chipped with a mine's chip. So can I use any other ECu's? The reason I am asking is because I think this one is fried. When the ignition key is on LED stays on which is a code 0 = bad ecu. Right?
Reply
Old Feb 7, 2005 | 09:01 AM
  #4  
EP3_05's Avatar
Member
 
Joined: Mar 2001
Posts: 3,668
Likes: 1
From: West Chester, PA, USA
Default Re: Need to identify this ECU (c_buz)

You can use any OBD0 ecu to test to see if the one you have is bad. The LED on the ecu will stay on as long as the CEL is on.
Reply
Old Feb 7, 2005 | 09:14 AM
  #5  
FalkenSiR's Avatar
Honda-Tech Member
 
Joined: Jun 2004
Posts: 10,812
Likes: 0
From: So Cal
Default Re: Need to identify this ECU (91civic)

I didn't know Mine's made products for honda. Specially that old.
Reply
Old Feb 7, 2005 | 09:15 AM
  #6  
c_buz's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2004
Posts: 305
Likes: 0
From: Somewhere in, canada
Default Re: Need to identify this ECU (91civic)

one of the circuit lines going to the C58 "brown pin" is burnt and has peeled up. That's why I think it is burned. I don't have another ECU I can test so I am out of luck
Reply
Old Feb 7, 2005 | 09:19 AM
  #7  
c_buz's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2004
Posts: 305
Likes: 0
From: Somewhere in, canada
Default Re: Need to identify this ECU (c_buz)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fast88std &raquo;</TD></TR><TR><TD CLASS="quote">I didn't know Mine's made products for honda. Specially that old.</TD></TR></TABLE>


Here you go:

http://www.hyperducktuning.com
Reply
Old Feb 7, 2005 | 10:03 AM
  #8  
c_buz's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2004
Posts: 305
Likes: 0
From: Somewhere in, canada
Default Re: Need to identify this ECU (c_buz)

ttt
Reply
Old Feb 7, 2005 | 10:08 AM
  #9  
EP3_05's Avatar
Member
 
Joined: Mar 2001
Posts: 3,668
Likes: 1
From: West Chester, PA, USA
Default Re: Need to identify this ECU (c_buz)

I would think if part of the circuitry is burnt that the ecu would not work. To replace it just buy another PR3/PW0 ecu and it should be fine. Or convert to OBD1 and run a chipped P28 ecu.
Reply
Old Feb 7, 2005 | 11:57 AM
  #10  
c_buz's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2004
Posts: 305
Likes: 0
From: Somewhere in, canada
Default Re: Need to identify this ECU (91civic)

I think I will try and find a pr3 ecu since mine was chipped and I could re-use that chip. I am trying very hard to find one on here but still no luck. Hopefully I'll have one by the end of the week.


P.S. thanks for all the help
Reply
Old Feb 7, 2005 | 12:04 PM
  #11  
4drEF's Avatar
Keyboard Humorist
 
Joined: May 2002
Posts: 9,814
Likes: 11
From: Granada Hills, Ca, USA
Default

Maybe get another chip.
Solder some small wire (about the same thickness as the trace that peeled up) directly from one microchip pin to the next to replace that burnt trace.

ECU still might work?!?!?
Reply
Old Feb 7, 2005 | 05:12 PM
  #12  
bigblueandyellow's Avatar
Honda-Tech Member
 
Joined: Sep 2004
Posts: 134
Likes: 0
From: Surrey, BC, Canada
Default Re: Need to identify this ECU (c_buz)

what kind of chip were you using, and how was it on improvements
Reply
Old Feb 7, 2005 | 05:34 PM
  #13  
I8ayellowcrayon's Avatar
Honda-Tech Member
 
Joined: Jun 2003
Posts: 1,647
Likes: 0
From: Fayetteville, AR, USA
Default

Thats frickin cool. I've never seen a Mine's chip in a Honda ECU.
Reply
Old Feb 7, 2005 | 06:04 PM
  #14  
.Noah Fecks's Avatar
Member
 
Joined: Sep 2002
Posts: 3,051
Likes: 0
From: Bat Country
Default Re: (I8ayellowcrayon)

still didnt see mines.
Reply
Old Feb 8, 2005 | 09:43 AM
  #15  
c_buz's Avatar
Thread Starter
Honda-Tech Member
 
Joined: May 2004
Posts: 305
Likes: 0
From: Somewhere in, canada
Default Re: (Noah *****)

I bought the car with the chip so i don't know how it was on improvements. What i can tell you is that the car ran super rich. It failed emmisions miserably. (o2 sensors were disconnected though so that might be the cause). Gas mileage was horrible, 440km all highway taking it easy, 330km going 140km/h or more (highway). Vtec was set at 5200rpm and redline at 8200rpm.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4drEF &raquo;</TD></TR><TR><TD CLASS="quote">Maybe get another chip.
Solder some small wire (about the same thickness as the trace that peeled up) directly from one microchip pin to the next to replace that burnt trace.

ECU still might work?!?!?</TD></TR></TABLE>

It's not the chip part that peeled up it is one of the "green" lines that runs through the circuit board. I doubt the ecu will work I accidently ran 12v power directly to it Ohh well you learn from your mistakes. I already have an offer on a ECU.

What do you guys think of the Mugen N1 program listed on http://www.hyperducktuning.com it says it lowers vtec to 3800 rpm and all sensors remain enabled. Anybody have any experience with this?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
zenon8890
Honda Civic / Del Sol (1992 - 2000)
5
Mar 12, 2009 02:21 PM
reyrey2006
Honda Civic / Del Sol (1992 - 2000)
3
Sep 21, 2008 11:19 AM
CRXb18Turbo
Acura Integra
6
Oct 20, 2005 05:48 PM
LODOSS
For Sale
1
Dec 11, 2003 04:59 AM




All times are GMT -8. The time now is 02:54 AM.