Evo VII-IX Caution - Electrics! - Mitsubishi Lancer Register Forum
 
 

Go Back   Mitsubishi Lancer Register Forum > Technical > Electrical / Security / ICE / Navigation

Reply
 
Thread Tools Rating: Thread Rating: 2 votes, 5.00 average. Display Modes
Old 06-01-2011, 10:35   #1
Rampant
Profound thinker
 
Rampant's Avatar
 
Join Date: Oct 2005
Location: Orbit pattern - Low block 3
Car: Evo VI GSR Import (& F80 M3 Comp & 997 Turbo)
My Car
Posts: 6,156
Evo VII-IX Caution - Electrics!

Slightly long story...

On my way to work one day before christmas my windscreen washers came on and wouldn't stop. So to prevent the washer motor burning out (or catching fire!) I pulled the fuse. The fuse also supplies power to the windscreen wipers so I didn't have wipers either - not ideal in the damp grimy weather.

Anyway - took the car to my local NR where Nick fortunately had enough time to trace the fault to a wiring loom connector block in the passenger footwell area.

Here is a picture of the male pin from inside the wiring connector block...



As you can see it has corroded right through both the wire and pin causing a permanent open-circuit which caused the washer motor to permanently operate.

There was evidence of condensation or moisture of some sort on the connector blocks and the beginning of some corrosion on a few other pins in the connector blocks - mainly isolated to the bottom-most few pins in the centre connector blocks.

Worryingly - the pin that feeds power to the fuel pump is very close to and in the same connector block to the pin that failed through corrosion. Clearly, if the fuel pump begins to fail with the car running this could have quite serious implications.

It might be time for VII - IX owners to get their car's connector blocks checked for evidence of moisture... ?

Not trying to scaremonger, as the pin most likely to fail is the same as mine - the washer motor control, and also the fuel pump wiring is thicker gauge wire, so should be more resistant to corrosion, etc. It's gotta be worth a quick check over, though.

Mine should be having a few wires reconnected with waterproof connectors just to be future-proof...

Cheerz

Mark H
__________________
Je cherche l'orgasme d'auto
J'ai trouve l'orgasme d'auto
C'est une evo VI bleu par le Rountree

***Go soothingly on the grease mud, as there lurks the skid demon***
//// Do as you OUGHT, not as you WANT ////
Rampant is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-01-2011, 10:44   #2
GOAT
Registered User
 
Join Date: May 2009
Location: UK
Posts: 2,587
I have read a few threads about this (water ingress) leading to damage to the connector blocks Not good really
__________________
GOAT is offline   Reply With Quote
Old 06-01-2011, 10:45   #3
SuperDan
Registered User
 
Join Date: Jan 2009
Location: Nottingham
Car: VIII MR FQ340
Posts: 1,890
Why isnt your cabin moisture proof though?
SuperDan is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-01-2011, 10:55   #4
Rampant
Profound thinker
 
Rampant's Avatar
 
Join Date: Oct 2005
Location: Orbit pattern - Low block 3
Car: Evo VI GSR Import (& F80 M3 Comp & 997 Turbo)
My Car
Posts: 6,156
Quote:
Originally Posted by SuperDan View Post
Why isnt your cabin moisture proof though?
Good question - I don't think there is a horrendous leak anywhere, so there are 2 things most likely...

1. Condensation forming inside the car from snow covered shoes causing wet mats or similar;

2. Salt deposits from gritted roads... If you use your car in this weather, just have a look at the seams around the sides of your front strut tops in the engine bay. There will most likely be flakes of crusty salt deposits that are created when salty water gets through the seams with capillary action. The water evaporates in the engine bay leaving the salt behind. If any flakes of salt find their way into the area of the electrical connectors, say through the side repeater recess... then the solid salt acts as a hydroscopic and sucks moisture out of the cabin air...


That's just 2 possible roots for water condensation to get onto the connectors, even though the cabin is ostensibly water-tight.

Cheerz

Mark H
__________________
Je cherche l'orgasme d'auto
J'ai trouve l'orgasme d'auto
C'est une evo VI bleu par le Rountree

***Go soothingly on the grease mud, as there lurks the skid demon***
//// Do as you OUGHT, not as you WANT ////
Rampant is offline   Reply With Quote
Old 06-01-2011, 11:01   #5
K
Registered User
 
K's Avatar
 
Join Date: Nov 2005
Location: a man of kent
Car: EVO 7 RS S-P-R-I-N-T->
My Car
Posts: 26,572
water in the connectors in the passenger footwell is a common problem
__________________
The north and the south of England hate each other, the Scottish hate the English, the Welsh hate the English, the English hate everyone, and everyone hates the Welsh.
K is offline   Reply With Quote
Old 06-01-2011, 16:51   #6
gilberto
Registered User
 
Join Date: Apr 2009
Location: Aberdeenshire
Car: Evo 8 MR FQ-320
My Car
Posts: 379
Quote:
Originally Posted by Rampant View Post
Slightly long story...

On my way to work one day before christmas my windscreen washers came on and wouldn't stop. So to prevent the washer motor burning out (or catching fire!) I pulled the fuse. The fuse also supplies power to the windscreen wipers so I didn't have wipers either - not ideal in the damp grimy weather.

Anyway - took the car to my local NR where Nick fortunately had enough time to trace the fault to a wiring loom connector block in the passenger footwell area.

Here is a picture of the male pin from inside the wiring connector block...



As you can see it has corroded right through both the wire and pin causing a permanent open-circuit which caused the washer motor to permanently operate.

There was evidence of condensation or moisture of some sort on the connector blocks and the beginning of some corrosion on a few other pins in the connector blocks - mainly isolated to the bottom-most few pins in the centre connector blocks.

Worryingly - the pin that feeds power to the fuel pump is very close to and in the same connector block to the pin that failed through corrosion. Clearly, if the fuel pump begins to fail with the car running this could have quite serious implications.

It might be time for VII - IX owners to get their car's connector blocks checked for evidence of moisture... ?

Not trying to scaremonger, as the pin most likely to fail is the same as mine - the washer motor control, and also the fuel pump wiring is thicker gauge wire, so should be more resistant to corrosion, etc. It's gotta be worth a quick check over, though.

Mine should be having a few wires reconnected with waterproof connectors just to be future-proof...

Cheerz

Mark H
Same thing happened to me in December. When i was at Mitsubishi the mechanic told me an Evo 9 had went up in smoke with a similar problem the week before.

Should really be a recall issue as its meant to be a common problem.
__________________
My Evo 8 MR FQ 320
gilberto is offline   Reply With Quote
Old 06-01-2011, 17:05   #7
Wolves FC
Registered User
 
Join Date: Jun 2010
Location: Steve Bull Country...
Car: Mitsubishi Evo IX FQ 360, 57 Reg-NOW SOLD! Looking for a Blue X FQ360 If anyone has one for sale???
My Car
Posts: 980
Yes ive seen this on another thread,it also causes all 3 of the ACD lights to come on. STEVOLUTION is doing an investigation as to where the water is coming from,he thinks its coming from the wheels up into front wheel arch as when he checked his it had bits of graval in it. Heres a link to the thread about the 3 ACD lights.

https://www.lancerregister.com/showthread.php?t=351877
__________________
Wolves FC is offline   Reply With Quote
Old 06-01-2011, 17:12   #8
Johnno
Registered User
 
Join Date: Aug 2009
Car: Evo IV
My Car
Posts: 5,588
Seem's to be a common thing this,
Glad i dont drive in the rain haha

John.
Johnno is offline   Reply With Quote
Old 06-01-2011, 17:50   #9
Stevolution
Registered User
 
Join Date: Feb 2010
Location: Yorkshire
Car: Vii FQ300
My Car
Posts: 309
Quote:
Originally Posted by SuperDan View Post
Why isnt your cabin moisture proof though?

The cabin is moisture proof. The Loom isnt sealed inside the inner arch and spray off the wheels soaks the wires and travels through the loom and eventually sits inside the plug.
Once the corrosion sets in its not long before problems start, I've had wipers,fuel pump and ayc pump issues all due to this.

My suggestion to anyone with a 7/8/9 is to check the loom is sealed within the inner arch under the plastice cover and if it's not follow my thread here to prevent further water ingress.
https://www.lancerregister.com/showth...ght=ACD+lights

Must make sure you dry the loom off and clean the plug and pins before you finish.

Alternativly you could remove the plug completely and solder the wires together. I'd still advise sealling the loom in the arch though.
__________________

Last edited by Stevolution; 06-01-2011 at 17:52..
Stevolution is offline   Reply With Quote
Old 06-01-2011, 18:18   #10
GAZ5EVO
Registered User
 
Join Date: Nov 2007
Location: HERTFORDSHIRE
Car: None at mo
Posts: 3,151
here is my plug in the same location and i had to cut 25 connections and solder 50 bloody things





__________________

Indigo-GT 01495 719720
I am who I am
GAZ5EVO is offline   Reply With Quote
Old 06-01-2011, 18:43   #11
Mister H
Senior User
 
Mister H's Avatar
 
Join Date: Dec 2005
Location: Cheshire
Car: M-Factory Racing Prepared Evo 4 , 6 motor,mega spec.
My Car
Posts: 1,138
Thanks for this, nice info, we could all do with more like this, I will be checking mine as soon as possible.
__________________
Better to be scared to death than bored to death.
Mister H is offline   Reply With Quote
Old 06-01-2011, 18:46   #12
neverneverman
Life after Evo= Elise
 
neverneverman's Avatar
 
Join Date: May 2003
Location: YORK,ENGLAND.
Car: The money pit has gone ! Lotus Elise now
My Car
Posts: 15,477
Not good, this is getting very commom !
neverneverman is offline   Reply With Quote
Old 06-01-2011, 18:49   #13
scubaladdie
Registered User
 
Join Date: Feb 2006
Location: Edinburgh/Leeds
Car: Evo VI GSR, Compomotives,Teins,Carbon Twin-Plate,HKS Cams 396/400
My Car
Posts: 4,551
Does it affect older Evo's or just the 7 8 and 9?
scubaladdie is offline   Reply With Quote
Old 06-01-2011, 22:42   #14
Stevolution
Registered User
 
Join Date: Feb 2010
Location: Yorkshire
Car: Vii FQ300
My Car
Posts: 309
Bloody hell Gaz yours was proper muller'd!


Quote:
Originally Posted by scubaladdie View Post
Does it affect older Evo's or just the 7 8 and 9?
Think its just 7/8/9 mate.
__________________
Stevolution is offline   Reply With Quote
Old 07-01-2011, 01:53   #15
EVL
Registered User
 
EVL's Avatar
 
Join Date: Sep 2005
Posts: 614
I've had the same problem on my VII. I didn't realise there was a problem until my lights refused to switch off!
EVL is offline   Reply With Quote
Mitsubishi Lancer Register
Sponsored Links
Advertisement
 
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Model Differences / Specifications youngsyr Lancer Chat 234 21-08-2019 08:03
Ross Sport - Used Parts Bargain Bonanza (updated regularly) Ross W Private Sales - Parts 146 11-01-2012 10:02
Brake and Clutch Lines By HEL Performance BHP MLR Group Buys 455 06-11-2011 05:47
Evo 5/6 Breaking parts full parts list itemsfrom £6 Xenonshop Private Sales - Parts 120 03-06-2011 11:06
US= Sport Compact Car - First Drive: Evo 9 Jakeg97 Lancer Chat 5 24-03-2005 08:29



All times are GMT. The time now is 11:26.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.