S2000 Talk Discussions related to the S2000, its ownership and enthusiasm for it.

Resetting Ecu

Thread Tools
 
Old Oct 8, 2003 | 04:26 PM
  #1  
Cole_19's Avatar
Thread Starter
Registered User
 
Joined: Nov 2002
Posts: 67
Likes: 0
From: Ennis
Default Resetting Ecu

I need instructions on how to reset the ECU! Already did a search and couldn't find anything!!!!!
Reply
Old Oct 8, 2003 | 05:00 PM
  #2  
Euclid's Avatar
Registered User
 
Joined: Feb 2002
Posts: 1,869
Likes: 0
From: SLC
Default

step 1 - disconnect the negative battery terminal

step 2- go get a beer and wait 15-20 minutes

step 3- reconnect the negative battery terminal
Reply
Old Oct 8, 2003 | 06:11 PM
  #3  
CutieBonny's Avatar
Banned
 
Joined: Jul 2003
Posts: 425
Likes: 0
From: Heaven,
Default

There's an easier way to do so. Remove a fuse from the box under the driver's dash. Which fuse? Do another search and you'll find it. I don't remember which one at the moment, so I can't say.
Reply
Old Oct 8, 2003 | 11:07 PM
  #4  
3ngin33r1's Avatar
Registered User
Gold Member (Premium)
 
Joined: Feb 2003
Posts: 16,231
Likes: 2
From: Kingston, WA
Default

#25, 7.5A
Reply
Old Oct 8, 2003 | 11:38 PM
  #5  
S-ToDo's Avatar
Registered User
 
Joined: Mar 2003
Posts: 728
Likes: 0
From: Vancouver
Default

why ECU need to be reset?
Reply
Old Oct 9, 2003 | 04:52 AM
  #6  
cdelena's Avatar
20 Year Member
 
Joined: Oct 2000
Posts: 9,210
Likes: 7
From: WA
Default

Although it will turn off the check engine light (just temporarily if conditions are not changed) it forces the ecu to relearn all fuel trim. I will not do it as it screws with the idle and low speed response. I use an OBD tool to reset CEL conditions, instead of living with idle problem for the next twenty trips.
Reply
Old Oct 10, 2003 | 04:12 PM
  #7  
epnfrn's Avatar
 
Joined: Jan 2003
Posts: 317
Likes: 0
From: KC, MO
Default

3ngin -

are you sure about that? just checked my car ... don't have a #25 ... do you mean #16 (7.5A) "Back-up"

b
Reply
Old Oct 10, 2003 | 06:59 PM
  #8  
Incubus's Avatar
20 Year Member
 
Joined: Oct 2001
Posts: 5,729
Likes: 2
Default

Second fuse from top on right(Third Slot). I believe it IS marked back-up.
Reply
Old Oct 10, 2003 | 08:11 PM
  #9  
3ngin33r1's Avatar
Registered User
Gold Member (Premium)
 
Joined: Feb 2003
Posts: 16,231
Likes: 2
From: Kingston, WA
Default

Hmmm, my ESM numbers them different than the user manual. Odd, I'll look into it but yes, the backup 7.5A.
Reply
Old Oct 10, 2003 | 09:09 PM
  #10  
fly_S2K's Avatar
Registered User
 
Joined: Jan 2003
Posts: 5,458
Likes: 12
From: Houston, TX
Default

Resetting ECU:
1. Remove the third fuse down from the second column (No. 25 Backup 7.5 A Fuse)
2. Wait for 60 secs and replace the fuse (make sure to note the orientation)
3. Turn on the car (with all electrical items turned off & throttle fully closed) and let it idle for 5-6mins (Idle learn process)
Reply



All times are GMT -8. The time now is 02:19 AM.