left knock sensor removal and replacement GL 1800 - GL1800Riders

 
LinkBack Thread Tools
post #1 of 7 (permalink) Old 01-31-2012, 06:47 PM Thread Starter
Rae
Member
 
Join Date: May 2007
Location: BC Canada and Sun City AZ
Posts: 15
Red face left knock sensor removal and replacement GL 1800

My 2003 gl1800 is giving me a code 26 which is the left side knock sensor from what I see. The sensor is pricy about $100.00. From the service manual it looks like the sensor can be accessed after the front lower cowling has been removed. Am I correct? What do i need to know to replace it. Step by step procedure would help immensely. Thank you



Thanks everyone, I bought the sensor and took the bike apart to find the wire had disconnected from the sensor and all I needed was to reattach the wire. Shawn at Western Honda Scottsdale was kind enough to take back the sensor with a $20.00 restocking fee. I had opened the package to examine the sensor so honda itself would not take it back. I also agreed to buy a further$100.00 of stuff from him. I felt he was really fair. He was also $25.00 plus cheaper for the sensor than other dealers
Rae is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 01-31-2012, 06:54 PM
Banned
 
Join Date: May 2009
Location: Evart, MI
Posts: 1,855
Quote:
Originally Posted by Rae View Post
My 2003 gl1800 is giving me a code 26 which is the left side knock sensor from what I see. The sensor is pricy about $100.00. From the service manual it looks like the sensor can be accessed after the front lower cowling has been removed. Am I correct? What do i need to know to replace it. Step by step procedure would help immensely. Thank you

A couple of years ago, I had that same problem with left bank sensor code showing on my ST1300. However, after the dealer replaced the part, it still displayed that fault. After many days in the shop, they finally discovered that the actual problem was a faulty ECM.
treeman is offline  
post #3 of 7 (permalink) Old 01-31-2012, 11:43 PM
Seasoned Member
 
bill.moore's Avatar
 
Join Date: Nov 2010
Location: Missouri
Posts: 1,665
It is down under the bottom and kind of hard to get to , but not a big problem. I had my bike torn apart to replace the main wire harness because the wire going to the knock sensor was severed. Thus, I cannot give you a step by step, but I don't think it should be too hard to change out if that is indeed the problem.

The wire that goes to it is part of the main harness and is a shielded cable. Before I replaced it, I would sure try to make sure the wire is still plugged in to the sensor. The "top" end is wired right into the main harness, so the only connection to easily check is the bottom plug.

This is a picture of the plug (broken). Click image for larger version

Name:	P3070165.jpg
Views:	390
Size:	50.1 KB
ID:	19906

This is how it looked up on the front end when I did the replacement-you will not need to disassemble this much though. Click image for larger version

Name:	P5050178.jpg
Views:	483
Size:	89.9 KB
ID:	19907

bill.moore is offline  
post #4 of 7 (permalink) Old 02-01-2012, 06:37 AM
Seasoned Member
 
GoldWingrGreg's Avatar
 
Join Date: Sep 2004
Location: Zephyrhills, FL - 25 miles NE of Tampa, FL
Posts: 12,316
Quote:
Originally Posted by Rae View Post
My 2003 gl1800 is giving me a code 26 which is the left side knock sensor from what I see. The sensor is pricy about $100.00. From the service manual it looks like the sensor can be accessed after the front lower cowling has been removed. Am I correct? What do i need to know to replace it. Step by step procedure would help immensely. Thank you
This is how I did a right one.

- remove front cowl
- remove front exaust sheild (1 bolt up front and 2 black nuts then pull down from front and then pull forward)
- remove wire
- unscrew sensor using a socket and wobbly. Use your new sensor for socket size and put nothing on the theads

Advice is like cooking ... I always try it before I feed it to others !!!
Florida Prowler #78
GoldWingrGreg is offline  
post #5 of 7 (permalink) Old 02-01-2012, 08:12 AM
Seasoned Member
 
Capt. Bob's Avatar
 
Join Date: Nov 2008
Location: Middleburg Florida CSA
Posts: 1,343
Quote:
A couple of years ago, I had that same problem with left bank sensor code showing on my ST1300. However, after the dealer replaced the part, it still displayed that fault. After many days in the shop, they finally discovered that the actual problem was a faulty ECM.

Ditto for me also except mine was a right knock sensor on my 01 GL1800A. I had to replace the ECM.

GL1800A Interceptor Illusion Red
Florida Prowler #100
IBA#64117
www.facebook.com/Bobbysokcorral


"Freedom is the length of the chain between a stake in the ground and reality"
Capt. Bob is online now  
post #6 of 7 (permalink) Old 02-01-2012, 12:26 PM
GL1800 Doctor
 
Join Date: Sep 2004
Location: Lexington, KY
Posts: 15,521
Before you spend the money for the sensor, you should pull both, left and right off and reinstall them on the opposite side. If it still throws the same code it's likely to be the ECM or the wires. If the sensor really is bad, you will get a new code for the right side.

Rob's Candy Red '04
techdude2000 is offline  
post #7 of 7 (permalink) Old 02-02-2012, 08:16 PM
Banned
 
Join Date: Oct 2006
Location: Pensacola,Florida
Posts: 96
Quote:
Originally Posted by techdude2000 View Post
Before you spend the money for the sensor, you should pull both, left and right off and reinstall them on the opposite side. If it still throws the same code it's likely to be the ECM or the wires. If the sensor really is bad, you will get a new code for the right side.
This is what i did and turned out to be faulty ECM.
trplsea is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the GL1800Riders 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.


Old Thread Warning
This Thread is more than 1633 days old. It is very likely that it does not need any further discussion and thus bumping it serves no purpose.
If you still feel it is necessary to make a new reply, you can still do so though.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may 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