Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 07-24-2004, 07:35 AM
Registered User
 
Join Date: Jan 2004
Location: Phoenix
Posts: 40
Does my 94 e420 have built in led/ switch?

My 94 e420 picked up a check engine light the other day after my wife filled it with gas. It runs great, I can't see that there is any drivabilty issue with the code. Does this car have the built in led/switch to check engine codes? Where is it located?

Don't want to take it in if it is something that has already reset.

Thanks

Reply With Quote
  #2  
Old 07-24-2004, 02:25 PM
Moderator
 
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
I think it should have it. It will be ahead of the module box near the passenger side hood hinge.
__________________
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
Reply With Quote
  #3  
Old 07-25-2004, 09:58 PM
Registered User
 
Join Date: Jan 2004
Location: Phoenix
Posts: 40
Can anyone provide a pic of this switch?
Reply With Quote
  #4  
Old 07-30-2004, 12:51 AM
Registered User
 
Join Date: Jan 2004
Location: Phoenix
Posts: 40
Ok, found it. I'm gettin a code 19. Looks like maybe an injector short or something related. Is this a sign of the infamous engine harness replacement coming on?

Thanks,
Chad
Reply With Quote
  #5  
Old 07-30-2004, 08:01 AM
Moderator
 
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
Look in the archives. code 19 is infamous. It is an adaptation code and has relatively nothing to do with injectors as the code definition states. The code 19 in v8s always means you have ran out of lean correction in the lower partial load range. The car is too rich and the software can only take it so far in correction and when it runs out of room the code is set.

MBs answer is new software housed in a $1800 hardware package. The original software will allow 15% fuel correction lean or rich. If 1.00 is the original calculation the the range of correction is from .85 to 1.15. The new software changes the capabilities to 32% or .68 to 1.32 and solves the problem without finding why the car went rich to start with. The AMM is often the reason the mix is skewed, but the software is eventually the answer. Lots of info here, if you can burn your own chip the 36k file is widely available.
__________________
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
Reply With Quote
  #6  
Old 12-17-2004, 12:34 PM
wjm's Avatar
wjm wjm is offline
Statman
 
Join Date: Dec 2000
Location: Suburban Detroit, MI
Posts: 692
Haven't been on this board in a while.

As the self proclaimed originator of the code #19 fix, I'm glad to see that another individual (it seems) has been helped.

If you have not fixed this yet, do a search for JIMF on this forum. He can get you a chio.

Reply With Quote
Reply

Bookmarks


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
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 02:58 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page