Parts Catalog Accessories Catalog Tech Info Tech Forums
 
  Search our site:    
 Cart  | Project List | Order Status | Help    
Go Back   Pelican Parts Technical BBS > 2- BMW Forums > BMW Technical Forums > 101 Projects Discussion Forum: BMW 3-Series

Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Junior Member
 
Join Date: Aug 2005
Posts: 2
ign.code knock sensor

My wife has a 95 318i (As you may guess I have a z. Much easier to work on) that has come up with the last code, 1284 I believe. Regardless, it is the knock sensor code. I understand replacing the knock sensor involves removing the intake and other issues. Question, can this code coming up be caused by any other thing? We did have a past problem of a leaky intake boot. Also, Can I reasonable remove the intake and fix the problem? I have fairly good experince but mostly with a 74 Z. (Or should we just spend the 3-400 dollars on labor and have it done? Thanks, great site by the way.
Steve
Old 08-15-2005, 03:07 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #1 (permalink)
Registered User
 
Join Date: Dec 1969
Location: Lac La Biche, Alberta, Canada
Posts: 952
Steve:

I had the very same problem on my 95 318i. Fault code 1284 (knock sensor test pulse) was preceeded by fault code 1226 (knock sensor #2). After replacing the knock sensor, the problem was still there. I ended up pulling the DME and resoldering the pads that ran to the main connector. I've never had that code again.

Tim
__________________
1986 911 Cab
1993 Chevy 3/4 Ton
1997 Club Car

Last edited by Tim Polzin; 08-15-2005 at 03:20 PM..
Old 08-15-2005, 03:14 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #2 (permalink)
CEO, Pelican Parts Inc.
 
Wayne at Pelican Parts's Avatar
Hi Tim, where you been hiding!

Tim's right - the knock sensor code can be a tough one to deal with. It's a pain in the butt to replace, and if it's not really the problem, you'll be very annoyed later on.

Is the car pinging? Usually the sensor will activate and pull a code if the harness is bad, or perhaps if one sensor is knocking all the time, but not the other.

Replacing the sensor is a pain, but anyone who has worked on cars can do it. I have some pics from my six cylinder that would be useful...

-Wayne
__________________
Wayne R. Dempsey, CEO, Pelican Parts Inc., and Author of:
101 Projects for Your BMW 3-Series 101 Projects for Your Porsche 911 How to Rebuild & Modify Porsche 911 Engines 101 Projects for Your Porsche Boxster & Cayman 101 Projects for Your Porsche 996 / 997
Coming in 2014:
101 Projects for Your MINI Cooper
Old 08-16-2005, 01:21 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #3 (permalink)
Junior Member
 
Join Date: Aug 2005
Posts: 2
Wayne,

Thanks, the car been pinging slightly for years but this knock sensor issue just came up. If their is a decent chance that it is not the sensor sounds like I should take it in.
Steve
Old 08-16-2005, 06:35 AM
  Recommend this thread for the PelicanWiki    Reply With Quote #4 (permalink)
Registered User
 
Join Date: Dec 1969
Location: Lac La Biche, Alberta, Canada
Posts: 952
Quote:
Originally posted by steve260z
If their is a decent chance that it is not the sensor sounds like I should take it in.
Steve
Steve:

You may not like the estimated cost of a replacement DME which is probably what the shop will want to put in.

Tim
__________________
1986 911 Cab
1993 Chevy 3/4 Ton
1997 Club Car
Old 08-16-2005, 03:07 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #5 (permalink)
CEO, Pelican Parts Inc.
 
Wayne at Pelican Parts's Avatar
I would reset the code, and then run some octane booster in the tank. It may just be bad gas...

-Wayne
__________________
Wayne R. Dempsey, CEO, Pelican Parts Inc., and Author of:
101 Projects for Your BMW 3-Series 101 Projects for Your Porsche 911 How to Rebuild & Modify Porsche 911 Engines 101 Projects for Your Porsche Boxster & Cayman 101 Projects for Your Porsche 996 / 997
Coming in 2014:
101 Projects for Your MINI Cooper
Old 08-16-2005, 11:33 PM
  Recommend this thread for the PelicanWiki    Reply With Quote #6 (permalink)
 
Now Available for Ordering:   101 Projects For Your BMW 3 Series 1982-2000  [more info]
Old 08-16-2005, 11:33 PM
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 



All times are GMT -8. The time now is 04:32 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.