Go Back   Honda-Tech > Honda and Acura Model-Specific Technical Forums > Honda Accord (1990 - 2002)
Sign in using an external account
Register Forgot Password?
Search


Welcome to Honda-Tech!
Welcome to Honda-Tech.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Honda-Tech community today!


Reply
 
 
 
submit to reddit
 
LinkBack Thread Tools Search this Thread
Old 09-07-2013, 03:26 PM   #1
Honda-Tech Member
 
Join Date: Jul 2013
Posts: 10
iTrader Rating: (0)
Default ECU immobilizer issues

Hi All,

I've been going through a lot with my car, but i''l try to keep my story short.

I have an Accord 1999 VTEC 4cyl 4drs, and i concluded out of some tests that i have a bad ECU (after replacing a lot of sensors, fuel-pump, and finally replacing the whole f23a engine . The thing which was making the situation annoying is, my car has no OBD2 nor OBD1 connector. it has a 3pin connector (see illustration below), which here in my island i get limited/no support at the Honda Dealer.)


I forgot to tell you my PROBLEM; I actually have an intermittent stalling issue, and this problem remained after the engine swap.
But to keep things really short, i'm now completely sure that it was the ECU bothering me all the time, since;
1. I swapped the whole engine with all sensors and fuel-pump and the problem remained
2. and lately i finally received the 1st check-engine light (CYP), and after troubleshooting with another distributor and measuring the resistance it comes out on a bad ECU.


So i went my way on buying an ECU on the internet.
But my part-code 37820-PAA-A50 was no were to be found. After some research i bought another ECU which should do the same 37820-PAA-L61. I bought the complete unit with its ignition-switch and (programmed)key, since my car has no immobilizer.

The parts arrived, my surprise now; since my car has no immobilizer it misses the jack for the immobo. (see illustration below)


In another forum i found the wiring diagram for this unit, and i made it. (see illustration below)

BUT after doing it all, it still wont start. I'm not able to hear the Fuel-pump when the key is turned ON. So the engine is getting no fuel and only cranks, and cranks, no go!! Further on i get a code 22 (VTEC-issues) from the new ECU, which should not be a real problem now.

My question now;
1. Anybody knows if there is something else i should consider when scratch installing an OEM immobilizer? is this even possible?
2. Is there another ECU i can buy with no immobilizer and still can do the work for my 1999 Accord? if yes, please provide me the Part-code...
3. Or anyone knows where i can get the 37820-PAA-A50 itself
Attached Images
   

Last edited by sherendly; 09-07-2013 at 03:45 PM.
sherendly is offline   Reply With Quote
Old 09-07-2013, 03:47 PM   #2
The Grumpiest
 
grumblemarc's Avatar
 
Join Date: May 2008
Location: Oak Ridge, TN, USA
Posts: 27,900
iTrader Rating: (4)
Send a message via AIM to grumblemarc Send a message via Yahoo to grumblemarc Send a message via Skype™ to grumblemarc
Default Re: ECU immobilizer issues

And this has what to do with Wheel & Tire?
And if you're looking for that ECU you should've tried eBay.
__________________
FAQs!--How to Turbocharge your Civic--Want a faster Civic?--DIYs
Quote:
Originally Posted by wantboost View Post
I wish more parents would beat their children, then maybe most of them wouldn't be total spoiled, self absorbed *********.
grumblemarc is offline   Reply With Quote
Old 09-07-2013, 03:53 PM   #3
Honda-Tech Member
 
Join Date: Jul 2013
Posts: 10
iTrader Rating: (0)
Default

Yes, i'm looking at my mistake. But i did not figure out yet how to move it from "wheel and tire"

But is the PAA-A51 VTEC compatible too?

Last edited by toyomatt84; 09-08-2013 at 08:07 PM.
sherendly is offline   Reply With Quote
Old 09-07-2013, 04:40 PM   #4
The Grumpiest
 
grumblemarc's Avatar
 
Join Date: May 2008
Location: Oak Ridge, TN, USA
Posts: 27,900
iTrader Rating: (4)
Send a message via AIM to grumblemarc Send a message via Yahoo to grumblemarc Send a message via Skype™ to grumblemarc
Default Re: ECU immobilizer issues

I'm just answering question #3. I think you should stop messing around and just get the correct one for your car since you are POSITIVE the ECU is the culprit. Replace parts like for like for no hassles. It was obvious that ECU you bought wasn't really compatible and now you have a new set of issues. Neither the buying it nor your attempts to modify it make any sense to me. If anything you should be trying to BYPASS the immobilizer rather than make your car compatible if you're bent on using it.

Trying to make sense of your troubleshooting logic.
__________________
FAQs!--How to Turbocharge your Civic--Want a faster Civic?--DIYs
Quote:
Originally Posted by wantboost View Post
I wish more parents would beat their children, then maybe most of them wouldn't be total spoiled, self absorbed *********.
grumblemarc is offline   Reply With Quote
Old 09-07-2013, 05:11 PM   #5
Honda-Tech Member
 
Join Date: Jul 2013
Posts: 10
iTrader Rating: (0)
Default Re: ECU immobilizer issues

i understand, and i'm happy your posting.
If you noticed the option you sent me is not A50, but A51 instead...

and I noticed the PAA-A51 you're giving me as an option before, but did choose the other one since in the ebay-listing they provide a better car compatibility list, which i thought is also important. f.e. 1999 accord EX, 4cyl, VTEC

hope you understand me. I just want to be sure sure that the "37820-PAA-A51" has no immobilizer and will do accord 1999 EX 4cyl. i just want you or someone to confirm that.
sherendly is offline   Reply With Quote
Old 09-08-2013, 12:20 AM   #6
The Grumpiest
 
grumblemarc's Avatar
 
Join Date: May 2008
Location: Oak Ridge, TN, USA
Posts: 27,900
iTrader Rating: (4)
Send a message via AIM to grumblemarc Send a message via Yahoo to grumblemarc Send a message via Skype™ to grumblemarc
Default Re: ECU immobilizer issues

That's what they listed. If the photo/listing isn't accurate you should verify with the seller as it happens all the time.
__________________
FAQs!--How to Turbocharge your Civic--Want a faster Civic?--DIYs
Quote:
Originally Posted by wantboost View Post
I wish more parents would beat their children, then maybe most of them wouldn't be total spoiled, self absorbed *********.
grumblemarc is offline   Reply With Quote
 
 
 
submit to reddit
Reply

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
98 Accord ECU replacement questions jaffadog Honda Accord (1990 - 2002) 3 05-13-2013 04:59 AM
ECU replacement - 2000 accord EX, automatic, 2.3l j894 Honda Accord (1990 - 2002) 5 03-12-2011 05:31 AM
Immobilizer Q's on 99 accord triggerman77 Honda Accord (1990 - 2002) 1 02-05-2010 06:12 PM
immobilizer problems toulor84 Honda Accord (1990 - 2002) 0 11-19-2007 10:01 AM
JDM H23A DOHC VTEC swap into a 99 Accord issues lithiumus Hybrid/Engine swaps 4 02-11-2007 03:28 AM



All times are GMT -8. The time now is 03:59 AM.



2014 Copyright, InternetBrands Inc.
Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.
Emails & Contact Details