Volvo S80 A performance sedan that offers top notch luxury, outstanding handling and so much more.

ECM/ETA "reduced engine performance" light

  #1  
Old 10-14-2013, 05:55 PM
Junior Member
Thread Starter
Join Date: Mar 2010
Posts: 29
Default ECM/ETA "reduced engine performance" light

I have had the "reduced engine performance" light come on twice. Once I was just going down the highway and I felt a little studder, then it drove ok but b/c it was in "limp mode" I simply was forced to drive slower. Second time the warning light came on I was at a stop light and idle was irratic and finally stalled. Both times the car drove fine after switching the car off and restarting.
Volvo dealer checked it (literally, not just read the stored codes- if there were any?) and said loose connections at the ECM and ETA (I think on the older cars the ETA was called an ETM). They said they need to replace the wiring harness connectors at both the ETA and the ECM.
Anyone have any experience doing this and is it something a DIY'er with moderate mechanical skills could do? The connector at the ETA looks really easy to get at but not sure about the ECM.
Thanks sugarman New Member
Posts: 8Joined: 21 Apr 2011, 14:10Location: austinModel and Year: S80, 2004
 
  #2  
Old 10-17-2013, 07:06 PM
Senior Member
Join Date: Jul 2011
Posts: 194
Default

sugardoo, Vehicle Engine/Model?
 
  #3  
Old 10-18-2013, 12:45 PM
Junior Member
Thread Starter
Join Date: Mar 2010
Posts: 29
Default

Its a 2004 S80 2.9L. I think its called a B6294S2 336003 Chassis. I will get you the VIN number if you would like.
Thanks!
 
  #4  
Old 10-18-2013, 08:11 PM
Senior Member
Join Date: Jul 2011
Posts: 194
Default

sugardoo, it is not big deal in such car if it comes rarely but it is better to know your problem. In my opinion if we follow the dealer's diagnose, I suggest buy CRC Electronic cleaner. Put the negative battery terminal off and disconnect those connections and clean them with a spray and do check if they are really loose, there are lots of tricks to get them tight.
 
  #5  
Old 10-20-2013, 03:33 PM
Junior Member
Thread Starter
Join Date: Mar 2010
Posts: 29
Default

Ok, sounds like a plan. Can you give me an idea of where the wire harness connection for the ECM is? I think the ECM is located on the passenger side of front engine area in a black box.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Stratton
Volvo S40
5
04-11-2015 11:22 PM
sugardoo
Volvo S60 & V60
0
10-16-2013 02:05 PM
AronS40
Volvo S80
0
01-17-2013 10:11 AM
xveruskax
Volvo XC90
6
09-12-2011 02:13 PM
jaredkeel
Volvo XC90
0
04-09-2011 04:37 PM


Thread Tools
Search this Thread
Quick Reply: ECM/ETA "reduced engine performance" light


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.