Renault Clio 2 - Loose Wiring Loom Cover Cutting Into ECU Loom*FIXED* - Page 13 - Renault Forums :: Independent Renault forum

Reply
 
LinkBack Thread Tools Display Modes
post #61 of 80 (permalink) Old 20th September 2010
Junior Member
 
Join Date: Sep 2010
Posts: 2
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Renault Clio 2 - Loose Wiring Loom Cover Cutting Into ECU Loom*FIXED*

Hi Guys, I'm all the way from South Africa. I drive a 2005 model 1.2 16v Clio. So glad I found this forum. My car started with irratic revs this morning. I suspect by reading the thread that it's the wires on the black box that has gone thru. Just check to see now and can't seem to find the box. Can anyone please direct me as to where to find it? Must I remove the plastic cover over the engine?
Clio 1.2 16V S.A is offline  
Sponsored Links
Advertisement
 
post #62 of 80 (permalink) Old 28th June 2011
Junior Member
 
Join Date: Jun 2011
Posts: 2
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 0
Thanked 1 Time in 1 Post
Re: Renault Clio 2 - Loose Wiring Loom Cover Cutting Into ECU Loom*FIXED*

Quote:
Originally Posted by LOUIS CHIRON View Post
No probs Truckbusuk (i just didn't want to reply to dead threads).

Clio 1.2 16v (D4F Engine)

My original problem was the car would cut out whilst driving; the ECU engine warning light would come on on the dashboard and the car wold go into 'limp home' mode (preventing me to get any faster than about 35 mph)

I can't garauntee that this will solve your issues but since doing it 6 months ago i've not had this problem again (touchwood).

The loose black box at the back of the engine is a 'tamper-proof' cage that protects the wiring loom where it enters the ECU .

This should be solidly fixed to the car. Unfortunatley they have a tendency to rattle off and chafe through the wiring loom as it enters the box causing a short circuit.

Check if your cage is loose and whether the wiring going into it has been worn. If so this could be the cause of your electrical problems. The steps below may help.

I'm no welder and could find no way to reattach it to the engine block. The solution was to remove the lid, reinsulate the wires and pack the cage out with padding so tightly as to prevent it rattling around. I could find no way to remove the cage completely.

To sort this you'll need:
  • 1x small mirror (the girlfriend's make up mirror from her handbag will do... just don't get dirt on it!!)
  • 1x Right-angled pick or strong piece of wire bent at 90 degrees at the end - i used a small Allan Key about 1-2mm in diameter
  • Insulating tape
  • Foam pipe lagging or something similar to pack out the cage
  • Maybe a torch
  • Patience

If you put the mirror down the back of the engine behind the Black Box you should be able to see a small brass wheel at the back left of it with holes in.

This wheel is sited on a bolt which when turned will cause a catch inside the cage to slide to the left and release the lid.

You need to stick the Right-Angled pick (or Allen Key) into the hole at the bottom and 'pull' it to the top (turning the wheel). You need to keep repeating this, turning the wheel until the catch is completely free. This will take quite a while -maybe 15 minutes!
The wheel maybe stiff to move at first but will loosen.

Once free, the lid should lift off.

You should be able now insulate the worn wiring. I used plenty of electrical tape.
If the wiring has actually worn right through, you'll need to solder on a new piece to bridge the gap - strip back a bit more insulation first from the problem wire so its easier to work on.
Once finished insulate all bare/worn/thin wires with electrical tape.

-Optional- Whilst the lid is off you may want to unplug the wires to the ECU and spray a little Electrical Contact Cleaner on the connections to drive out any moisture. **If you choose to do this be VERY careful when plugging/unplugging this cable incase you bend the pins. You could end up damaging you ECU !!**

Renault UK are apparently aware of the chafing problem and modified the Black Box by putting a small rubber grommet aroung the hole in the Black box. This has probably fallen out and is no use if the cage has detached and is rattling.

I used pipe lagging (the grey foam tubes with a slit in) to wrap around the wiring loom (like a collar) where it enters the box. Packed out tightly, this will insulate the wires, prevent the metal box from rubbing the wires and prevent the box from rattling/moving around at all.

Once your satisfied that the box is firm and wont rattle any more, rotate the brass wheel downwards to slide the catch back to the right.

Replace the lid and push it down firmly, the catch should 'click' holding the lid in place. If it doesn't click, lift the lid back off and adjust the catch right or left to line up with the tab on the lid. Fitted correctly you should not be able to lift the lid off.

You're done. Go and have a cup of tea!

Hope that helps - thanks must go to P Drage from another forum (do they exist?!) who helped me out with my problem
Many Thanks for this piece of very usefull information, as my son's clio has just developed this fault. Once again many THANKS
budgie750 is offline  
The Following User Says Thank You to budgie750 For This Useful Post:
Scotty123 (29th December 2011)
post #63 of 80 (permalink) Old 29th June 2011
Junior Member
 
Join Date: Jun 2011
Posts: 2
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 0
Thanked 1 Time in 1 Post
Re: Renault Clio 2 - Loose Wiring Loom Cover Cutting Into ECU Loom*FIXED*

Had my local garage sort this problem out this morning, must say they done a great job, touch wood no warning lights and runs just fine.
budgie750 is offline  
 
post #64 of 80 (permalink) Old 12th October 2011
Junior Member
 
Join Date: Oct 2011
Posts: 4
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Renault Clio 2 - Loose Wiring Loom Cover Cutting Into ECU Loom*FIXED*

Had a wiring loom problem caused by the "crash box" where is cut through the loom putting the car into "limp mode", contacted VOSA who were intrested as my car has full service history so filled out their report and contacted Renault who claimed it only had two Renault services. After a lot of argueing with Renault they offered only 50% towards a new loom at a cost of 440 fitted, as the car is 9 years old, even though it only has 36000 miles on the clock. I was also told by the Renault engineer and Engineering Manager that the box was only put on by Renault onto their export car's to prevent the fuel injection ecu from being stolen, and that they remove this box whenever they see them as it causes this fault, but not my one!. So had the bottom of the box taken off at a cost of 82 instead, by Renault!. Just waiting to see what VOSA do. So if you have full service history and you bought the car from renault and have this fault contact VOSA

Last edited by Pat.w; 13th October 2011 at 12:23 AM.
henry123 is offline  
post #65 of 80 (permalink) Old 13th October 2011
Junior Member
 
Join Date: Oct 2011
Posts: 4
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Renault Clio 2 - Loose Wiring Loom Cover Cutting Into ECU Loom*FIXED*

Quote:
Originally Posted by henry123 View Post
Had a wiring loom problem caused by the "crash box" where is cut through the loom putting the car into "limp mode", contacted VOSA who were intrested as my car has full service history so filled out their report and contacted Renault who claimed it only had two Renault services. After a lot of argueing with Renault they offered only 50% towards a new loom at a cost of 440 fitted, as the car is 9 years old, even though it only has 36000 miles on the clock. I was also told by the Renault engineer and Engineering Manager that the box was only put on by Renault onto their export car's to prevent the fuel injection ecu from being stolen, and that they remove this box whenever they see them as it causes this fault, but not my one!. So had the bottom of the box taken off at a cost of 82 instead, by Renault!. Just waiting to see what VOSA do. So if you have full service history and you bought the car from renault and have this fault contact
Heard from VOSA today who can't help as they havene't had enought reports from clio owners with the same defect, with full service history from Renault. However they say it is a defect and to contact trading standards. Watch this space.
henry123 is offline  
Reply

Tags
clio , cover , cutting , ecu , loom , loomfixed , loose , renault , wiring

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Renault Forums :: Independent Renault forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome