1999 Accord ECU - Flash/Program - Honda-Tech - Honda Forum Discussion


Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

1999 Accord ECU - Flash/Program

Reply
 
 
 
Thread Tools Search this Thread
Old 08-17-2010, 11:47 AM   #1
Honda-Tech Member
Thread Starter
 
mcole1973's Avatar
 
Join Date: Jan 2006
Location: Raleigh, nc, usa
Posts: 12
Default 1999 Accord ECU - Flash/Program

I've been having stalling/hesitation issues for a while. Left the car with a tech for 2 weeks at ~100k miles and after trying everything, they could not diagnose the issue. Best thing they said at the time was replace ECU. Now at 170k, I'm getting CYP ODB code (1381) and based on net readings, believe I could be getting faulty codes due to a screwed up ECU.

I can get one for $100 on Ebay. But, does the ECU need to be flashed/programmed at the dealer before I can install it? If so, can I just take them the ECU or do I have to have them install and program it? Trying to save cash and troubleshoot this one myself.....

Thanks.
mcole1973 is offline   Reply With Quote
Old 08-17-2010, 08:56 PM   #2
Honda-Tech Member
 
02 accord's Avatar
 
Join Date: Aug 2004
Location: Sterling Heights, MI, USA
Posts: 2,006
Default Re: 1999 Accord ECU - Flash/Program

After I did my auto->stick swap, I drove to the dealer on the auto ecu, and swapped the plugs to the manual one so they could program the immobilizer. I had one ECU mounted and the other laying on the floor in front of the passenger seat. The guy programming it didn't mind. Do that to get it programmed, and you can mount it later on. It will save the programmed keys even if you disconnect it from power.

Call around and find the best price. I did and was told anywhere from $30 to $100 to program it.
02 accord is offline   Reply With Quote
Old 08-17-2010, 10:46 PM   #3
Honda-Tech Member
 
GhostAccord's Avatar
 
Join Date: Mar 2007
Location: East Coast 506, Canada
Posts: 10,739
Default Re: 1999 Accord ECU - Flash/Program

There are some locksmiths that are able to do this now as well, you don't have to go to the dealership.
GhostAccord is offline   Reply With Quote
Old 03-16-2011, 05:31 PM   #4
Honda-Tech Member
 
timpletcher's Avatar
 
Join Date: Feb 2011
Posts: 19
Default Re: 1999 Accord ECU - Flash/Program

Quote:
Originally Posted by 02 accord View Post
After I did my auto->stick swap, I drove to the dealer on the auto ecu, and swapped the plugs to the manual one so they could program the immobilizer. I had one ECU mounted and the other laying on the floor in front of the passenger seat. The guy programming it didn't mind. Do that to get it programmed, and you can mount it later on. It will save the programmed keys even if you disconnect it from power.

Call around and find the best price. I did and was told anywhere from $30 to $100 to program it.
I have a 2002 Accord that looks identical to yours, 4door, 4cyl, Ex model. The car was in a flood and I am working on replacing some electrical components including the ECU... I was told, however, that my ECU wouldn't need to be programmed... but if your specs match mine then they are wrong?

I bought a new ECU and installed it but now the car wont start. Turns over no problem... replace it with the old ECU and runs again...
ECU needs flashed / programmed?
timpletcher is offline   Reply With Quote
Old 03-16-2011, 06:06 PM   #5
Honda-Tech Member
 
02 accord's Avatar
 
Join Date: Aug 2004
Location: Sterling Heights, MI, USA
Posts: 2,006
Default Re: 1999 Accord ECU - Flash/Program

Yeah, the dealer needs to program the new ecu to work with your keys. Otherwise, the car won't start, as you already found out.
02 accord is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Need help - B18c Limp mode issue --> ECU won't flash any codes mycho Tech / Misc 7 11-02-2015 07:26 PM
2003 CR-V immobiliser issues key light flashing majik Honda Element & CR-V 0 11-22-2011 06:30 AM
google chrome/shockwave "unresponsive, slow, memory leak, crash, et al" MonkeyMagic General Discussion and Debate 12 01-02-2010 09:07 AM
Using crome free 1.4.8 and burn 1, having burn/recall issues mattsnooz Forced Induction 8 05-29-2008 12:18 PM
Hondata Flash JoeyBallzSI Acura RSX DC5 & Honda Civic EP3 9 06-03-2004 09:53 AM


Tags
1999, 99, accord, acord, automotive, codes, ecu, ecus, flash, flashing, honda, honda1999, locksmith, replacement, swapping, texas

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 04:00 AM.


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