DiscoWeb Message Boards
 

Go Back   DiscoWeb Message Boards > DiscoWeb Technical Boards > Discovery - Technical Discussions

Reply
 
Thread Tools Display Modes
Old 09-29-2017, 08:47 PM   #1
Lake_Bueller
Keyboard Pounder II
 
Lake_Bueller's Avatar
 
Join Date: Aug 2004
Location: Green Bay, WI
Posts: 1,801
Member Trucks
Default CKP wiring issue

While I normally will do something like a CKP replacement myself, I was in the middle of a 10 day stretch of 12-14 hour days and didn't have the time.

My mechanic called me about an issue with the wiring for the CKP. He said the wires were brittle at the harness plug and the thing "fell apart". I did a search and only found one reference to this happening but no solution. Is there a good place to splice into the harness or would I be better off replacing the engine harness completely?

Thanks!!!

Dennis
__________________
The influence of fine scenery,
the presence of mountains,
appeases our irritations,
and elevates our friendships.
-Emerson

04 DII G4
04 DII S
02 Corvette
98 Buell S3T
98 Buell S1W
95 Buell S2
Lake_Bueller is online now   Reply With Quote
Old 09-29-2017, 10:48 PM   #2
Nomar
What does it take to become Senior?!?
 
Nomar's Avatar
 
Join Date: Apr 2004
Location: Virginia
Posts: 6,016
Default Re: CKP wiring issue

Quote:
Originally Posted by Lake_Bueller View Post
..................or would I be better off replacing the engine harness completely?

Ummm...no?

The rest of the harness is probably fine.


.
__________________
91 RR Hunter(with LWB map light/rearview mirror), 93 Tdi LWB
.
Nomar is offline   Reply With Quote
Old 09-30-2017, 07:14 PM   #3
Lake_Bueller
Keyboard Pounder II
 
Lake_Bueller's Avatar
 
Join Date: Aug 2004
Location: Green Bay, WI
Posts: 1,801
Member Trucks
Default Re: CKP wiring issue

After digging further into the RAVE, I think my best solution is to start at the ECM and run a new set of wires to the CKP.

Does that make sense? Seems like a lot of wiring to run but the original location doesn't leave much room for splicing.
__________________
The influence of fine scenery,
the presence of mountains,
appeases our irritations,
and elevates our friendships.
-Emerson

04 DII G4
04 DII S
02 Corvette
98 Buell S3T
98 Buell S1W
95 Buell S2
Lake_Bueller is online now   Reply With Quote
Old 10-01-2017, 06:45 PM   #4
squirt
Member
 
squirt's Avatar
 
Join Date: Nov 2008
Location: Los Angeles
Posts: 691
Default Re: CKP wiring issue

Sure, you can splice a new end in. If it was mine, I'd be heading to the U-pull to grab a connector with as much harness attached as I could manage. Cut it up behind the engine and you'll have feet of wiring to work with. Splicing in the current location may be tedious, but not impossible. Worst case, you can drag the ends of the remaining wire up to the top of the engine bay and feed the end of your donor harness up before splicing, heat-shrinking, and sending back down the back of the engine.
squirt is offline   Reply With Quote
Old 10-01-2017, 08:28 PM   #5
jymmiejamz
I'm still not Senior? WTF?
 
jymmiejamz's Avatar
 
Join Date: Dec 2004
Location: Brooklyn, NY
Posts: 5,002
Default Re: CKP wiring issue

IIRC you can splice it into the harness that goes along the top of the engine bay on the bulkhead.
__________________
@carcampingcollective
jymmiejamz is offline   Reply With Quote
Old 10-04-2017, 05:26 PM   #6
Lake_Bueller
Keyboard Pounder II
 
Lake_Bueller's Avatar
 
Join Date: Aug 2004
Location: Green Bay, WI
Posts: 1,801
Member Trucks
Default Re: CKP wiring issue

If I had any hair left, I'd be pulling it out right now!!! My mechanic can't find the correct colored wires for the CKP in the bulkhead wiring harness. I know they have to be there. That's the only logical place for them to get back to the ECM. Please confirm that I'm not crazy (and yeah...next time I need to do the damn work myself!!)
__________________
The influence of fine scenery,
the presence of mountains,
appeases our irritations,
and elevates our friendships.
-Emerson

04 DII G4
04 DII S
02 Corvette
98 Buell S3T
98 Buell S1W
95 Buell S2
Lake_Bueller is online now   Reply With Quote
Old 10-04-2017, 06:10 PM   #7
robertf
Member
 
Join Date: Jan 2006
Location: Dallas
Posts: 3,681
Member Trucks
Default Re: CKP wiring issue

Bulkhead as in going through the firewall? The ecu is on the passenger fender under the hood

Use a pin removal tool and put heat shrink over the exposed wire then reassemble. You dont have to cut wires
robertf is online now   Reply With Quote
Old 10-04-2017, 06:12 PM   #8
jymmiejamz
I'm still not Senior? WTF?
 
jymmiejamz's Avatar
 
Join Date: Dec 2004
Location: Brooklyn, NY
Posts: 5,002
Default Re: CKP wiring issue

Why doesn't he just remove the heat shielding and trace the wires straight from the CkPS connector? Alternatively, de-pin the broken connector and install the wires into the new connector. Some connectors are easier than others, so this might not even be a viable option.
__________________
@carcampingcollective
jymmiejamz is offline   Reply With Quote
Old 10-04-2017, 08:49 PM   #9
Lake_Bueller
Keyboard Pounder II
 
Lake_Bueller's Avatar
 
Join Date: Aug 2004
Location: Green Bay, WI
Posts: 1,801
Member Trucks
Default Re: CKP wiring issue

Quote:
Originally Posted by robertf View Post
Bulkhead as in going through the firewall? The ecu is on the passenger fender under the hood

Use a pin removal tool and put heat shrink over the exposed wire then reassemble. You dont have to cut wires
DII is inside on the passenger side.
__________________
The influence of fine scenery,
the presence of mountains,
appeases our irritations,
and elevates our friendships.
-Emerson

04 DII G4
04 DII S
02 Corvette
98 Buell S3T
98 Buell S1W
95 Buell S2
Lake_Bueller is online now   Reply With Quote
Old 10-04-2017, 11:37 PM   #10
robertf
Member
 
Join Date: Jan 2006
Location: Dallas
Posts: 3,681
Member Trucks
Default Re: CKP wiring issue

my bad, assumed it was a D1. Very common issue on them
robertf is online now   Reply With Quote
Old 10-05-2017, 12:58 AM   #11
mbrummal
Member
 
mbrummal's Avatar
 
Join Date: Jan 2009
Location: Montgomery, AL
Posts: 2,834
Member Trucks
Default Re: CKP wiring issue

The CkPS sensor wiring is a shielded cable with black outer insulation. The knock sensors use a coax wire that looks similar to it in the harness. He'll likely have to trace the CkPS wiring up from its connector.
__________________
Mason
'00 DII

If BS was money he'd be a billionaire. -jhmover

mbrummal is offline   Reply With Quote
Old 10-05-2017, 11:56 AM   #12
squirt
Member
 
squirt's Avatar
 
Join Date: Nov 2008
Location: Los Angeles
Posts: 691
Default Re: CKP wiring issue

Slightly off-topic, but I've found that a serendipitous effect of the 1" body lift on my D2 is that these jobs at the rear of the engine are 100% easier. Since things are so tight back there from the factory, the small increase in the amount of room seems huge. I'd do it again on my next truck just for that reason.
squirt is offline   Reply With Quote
Old 10-05-2017, 07:14 PM   #13
Lake_Bueller
Keyboard Pounder II
 
Lake_Bueller's Avatar
 
Join Date: Aug 2004
Location: Green Bay, WI
Posts: 1,801
Member Trucks
Default Re: CKP wiring issue

Ugh!!!! What a mess!!

We've been though the complete wiring harness at the bulkhead and can't find the correct wires. There is not a black with yellow stripe anywhere in the harness. Within an insulated group, there is a pink with black (one of the correct wires according to the factory wiring) but it is paired with a white and blue wire.

I'm about to put a torch to this stupid thing (banging head on the wall)
__________________
The influence of fine scenery,
the presence of mountains,
appeases our irritations,
and elevates our friendships.
-Emerson

04 DII G4
04 DII S
02 Corvette
98 Buell S3T
98 Buell S1W
95 Buell S2
Lake_Bueller is online now   Reply With Quote
Old 10-05-2017, 08:44 PM   #14
jymmiejamz
I'm still not Senior? WTF?
 
jymmiejamz's Avatar
 
Join Date: Dec 2004
Location: Brooklyn, NY
Posts: 5,002
Default Re: CKP wiring issue

Sounds like you found the correct wires.
Attached Images
File Type: png Screen Shot 2017-10-05 at 20.43.27.png (31.3 KB, 30 views)
__________________
@carcampingcollective
jymmiejamz is offline   Reply With Quote
Old 10-05-2017, 10:12 PM   #15
Lake_Bueller
Keyboard Pounder II
 
Lake_Bueller's Avatar
 
Join Date: Aug 2004
Location: Green Bay, WI
Posts: 1,801
Member Trucks
Default Re: CKP wiring issue

WTF!!!!
__________________
The influence of fine scenery,
the presence of mountains,
appeases our irritations,
and elevates our friendships.
-Emerson

04 DII G4
04 DII S
02 Corvette
98 Buell S3T
98 Buell S1W
95 Buell S2
Lake_Bueller is online now   Reply With Quote
Old 10-20-2017, 05:31 PM   #16
Lake_Bueller
Keyboard Pounder II
 
Lake_Bueller's Avatar
 
Join Date: Aug 2004
Location: Green Bay, WI
Posts: 1,801
Member Trucks
Default Re: CKP wiring issue

Well that didn't work!!

The wires at the female plug are black-orange-black. These are not in the harness or wiring diagram.

I'm at a complete loss. The truck has been down 3 weeks trying to sort this mess.
__________________
The influence of fine scenery,
the presence of mountains,
appeases our irritations,
and elevates our friendships.
-Emerson

04 DII G4
04 DII S
02 Corvette
98 Buell S3T
98 Buell S1W
95 Buell S2
Lake_Bueller is online now   Reply With Quote
Old 10-21-2017, 09:23 PM   #17
robert.juric
Almost There...
 
Join Date: May 2017
Location: North Alabama
Posts: 38
Member Trucks
Default Re: CKP wiring issue

Have you identified the wires at the ECM? I would be tempted to just run a whole new pair of wires.

I just replaced my CkPS last week and I noticed that the clip on the harness had come off. I may be right there with you if my connection wiggles loose.
__________________
For the things we have to learn before we can do them, we learn by doing them...
Aristotle

'01 Discovery II LE - 170k miles
#notamechanic
robert.juric is offline   Reply With Quote
Old 10-23-2017, 08:16 PM   #18
jymmiejamz
I'm still not Senior? WTF?
 
jymmiejamz's Avatar
 
Join Date: Dec 2004
Location: Brooklyn, NY
Posts: 5,002
Default Re: CKP wiring issue

Okay, I fucked up. I just spent 20 minutes trying to figure out where I got that wiring from. Turns out the wiring diagram for a DII V8 Engine Management is shared with with TD5. Here is the correct one. Sorry!
Attached Images
File Type: png Screen Shot 2017-10-23 at 20.12.18.png (30.2 KB, 13 views)
__________________
@carcampingcollective
jymmiejamz is offline   Reply With Quote
Old 10-25-2017, 05:46 PM   #19
Lake_Bueller
Keyboard Pounder II
 
Lake_Bueller's Avatar
 
Join Date: Aug 2004
Location: Green Bay, WI
Posts: 1,801
Member Trucks
Default Re: CKP wiring issue

Well this is not going as planned. There are not wires in going to the ECU that match the electrical manual diagram. I pulled the harness from an '03 that is at the local pick and pull. I'm going to trace wires to plugs and hope to hell that the dumb fucks at LR didn't change that also.
__________________
The influence of fine scenery,
the presence of mountains,
appeases our irritations,
and elevates our friendships.
-Emerson

04 DII G4
04 DII S
02 Corvette
98 Buell S3T
98 Buell S1W
95 Buell S2
Lake_Bueller is online now   Reply With Quote
Old 10-26-2017, 03:43 PM   #20
Lake_Bueller
Keyboard Pounder II
 
Lake_Bueller's Avatar
 
Join Date: Aug 2004
Location: Green Bay, WI
Posts: 1,801
Member Trucks
Default Re: CKP wiring issue

Just in case anybody has this problem in the future....

The wire is screen wrapped and contains an orange and black wire. Disregard what the RAVE tells you.

BTW...running like a champ!
__________________
The influence of fine scenery,
the presence of mountains,
appeases our irritations,
and elevates our friendships.
-Emerson

04 DII G4
04 DII S
02 Corvette
98 Buell S3T
98 Buell S1W
95 Buell S2
Lake_Bueller is online now   Reply With Quote
Old 10-26-2017, 07:31 PM   #21
jymmiejamz
I'm still not Senior? WTF?
 
jymmiejamz's Avatar
 
Join Date: Dec 2004
Location: Brooklyn, NY
Posts: 5,002
Default Re: CKP wiring issue

Quote:
Originally Posted by Lake_Bueller View Post
Just in case anybody has this problem in the future....

The wire is screen wrapped and contains an orange and black wire. Disregard what the RAVE tells you.

BTW...running like a champ!
Glad you got it sorted. I actually forgot about the screen, but it is mentioned in the workshop manual.

Quote:
The 3rd pin is used by the ECM as an earth screen, this screen protects the integrity of the CKP sensor signal to ensure that outside electrical interference is eliminated, it is controlled via pin 45 of connector C0636 of the ECM.
__________________
@carcampingcollective
jymmiejamz 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 On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
2001 DII SE7 160k HEADLAMP WIRING ISSUE Disco.Kanata Discovery - Technical Discussions 4 07-11-2011 12:36 AM
subwoofer amp issue? fuse? power issue? Tammaru Discovery - Technical Discussions 6 10-23-2007 10:23 PM
Painless wiring dual battery wiring kit gunjankakani Parts For Sale 10 09-17-2006 09:29 PM
Home wiring question -- wiring ceiling fan Apexdisco General 2 07-30-2005 10:49 PM
DII Trailer Wiring Issue jsonova99 Discovery - Technical Discussions 5 06-01-2005 12:56 PM

» Log in
User Name Not a member yet?
Register Now!
Password
» Today's Birthdays
Olered
dkfrizzell (43)
Powered by vBadvanced CMPS v3.2.3

All times are GMT -4. The time now is 11:12 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2000 - 2015, DiscoWeb.org. All rights reserved.

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.