ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 06-22-2011   #1
ZR-1Mikko
 
ZR-1Mikko's Avatar
 
Join Date: Dec 2005
Location: Las Vegas
Posts: 108
Default Code 41 - need an ecm to borrow in Vegas area.

Well I have been tracking down the cause of C41 code in my '91 and I believe I have narrowed the problem to either a bad wire on the ECM end or bad ECM. Before I start messing with the wires I was hoping to try a different ECM to make sure that is not the problem.

So if any of you Z owners here in Las Vegas would be willing to help and borrow/rent an ECM it would be greatly appreciated.

Thanks
__________________
If you don't put the miles on it, someone else will...
ZR-1Mikko is offline   Reply With Quote
Old 06-24-2011   #2
Marc Haibeck
 
Join Date: May 2007
Location: Addison IL
Posts: 250
Default Re: Code 41 - need an ecm to borrow in Vegas area.

Code 41 is a cylinder select error. It should be a problem with the cal-pack or internal to the ECM. I can't see how it could be caused by anything external to the ECM like the wiring.
Marc Haibeck is offline   Reply With Quote
Old 06-24-2011   #3
tomtom72
 
tomtom72's Avatar
 
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
Default Re: Code 41 - need an ecm to borrow in Vegas area.

Hi, I'm Tom. I have a spare ECM that I could let you use for your diagnostics.

I'm over here in NYS/ NYC-suburbs area. I expect it would take a few days to get there via USPS. Let me know if you can't scare up anything more local to you.


Tom
__________________
1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member
tomtom72 is offline   Reply With Quote
Old 07-06-2011   #4
ZR-1Mikko
 
ZR-1Mikko's Avatar
 
Join Date: Dec 2005
Location: Las Vegas
Posts: 108
Default Re: Code 41 - need an ecm to borrow in Vegas area.

Thanks both Marc and Tom for the input. I was able to borrow ECM from fellow Z in town. Sure enough that was the problem. Worked like a champ with the "new" ecm.

So now I'm shopping to have mine repaired...
__________________
If you don't put the miles on it, someone else will...
ZR-1Mikko is offline   Reply With Quote
Old 07-07-2011   #5
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
Default Re: Code 41 - need an ecm to borrow in Vegas area.

Quote:
Originally Posted by ZR-1Mikko View Post
Thanks both Marc and Tom for the input. I was able to borrow ECM from fellow Z in town. Sure enough that was the problem. Worked like a champ with the "new" ecm.

So now I'm shopping to have mine repaired...
Did you swap cal-paks when you did that? Have you re-tried the old ECM after reinstalling the calpak? Or the new ECM with the old cal-pak?
XfireZ51 is offline   Reply With Quote
Old 07-07-2011   #6
ZR-1Mikko
 
ZR-1Mikko's Avatar
 
Join Date: Dec 2005
Location: Las Vegas
Posts: 108
Default Re: Code 41 - need an ecm to borrow in Vegas area.

the only thing I changed was the ECM. Used the same cal pak I had used in my own ECM.
__________________
If you don't put the miles on it, someone else will...
ZR-1Mikko is offline   Reply With Quote
Old 07-07-2011   #7
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
Default Re: Code 41 - need an ecm to borrow in Vegas area.

Quote:
Originally Posted by ZR-1Mikko View Post
the only thing I changed was the ECM. Used the same cal pak I had used in my own ECM.
OK. Did you put the cal pak back in the original ECM and see if that worked? I ask because what I don't know is whether it really is a defective ECM or was the calpak in need of re-seating.Or possibly the connectors with some oxidation.

Last edited by XfireZ51; 07-07-2011 at 05:20 PM.
XfireZ51 is offline   Reply With Quote
Old 07-07-2011   #8
ZR-1Mikko
 
ZR-1Mikko's Avatar
 
Join Date: Dec 2005
Location: Las Vegas
Posts: 108
Default Re: Code 41 - need an ecm to borrow in Vegas area.

Actually did try two different cal paks before I even tried the other ECM. Car had the same issues with both cal paks, so I think the ECM is truly bad.
__________________
If you don't put the miles on it, someone else will...
ZR-1Mikko is offline   Reply With Quote
Old 07-07-2011   #9
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
Default Re: Code 41 - need an ecm to borrow in Vegas area.

Quote:
Originally Posted by ZR-1Mikko View Post
Actually did try two different cal paks before I even tried the other ECM. Car had the same issues with both cal paks, so I think the ECM is truly bad.
Its possible to have it repaired.
XfireZ51 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -4. The time now is 07:30 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020