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 04-20-2004, 11:10 AM
Registered User
 
Join Date: Sep 2003
Location: Norway
Posts: 12
EHA-current / O2 / Duty-cycle readings (M103) - please check

I have some problems with hesitation during acceleration (not with full throttle) on my 90 260E (M103).
With small movemments with the pedal (more throttle), I get large variations in power up and down.
Feels like something holds back and then let go several times during one acceleration.

I have tested this:

Current at EHA: fluctates around 0mA (warm) and 19,5mA when ignition on / enigne off.

When I disconnect the O2-sensor (lambda) i measure about 0,8 volt. Should not this value be lower?

Duty-cycle readings fluctates around 47-52 %.

O2-sensor new january 2004.
Any comments on the readings, suggestions for further test-steps or possible couses are appreciated.



Grunde
260E
Reply With Quote
  #2  
Old 04-20-2004, 02:18 PM
Super Moderator
 
Join Date: Apr 2000
Location: Falls Church, VA
Posts: 5,316
Those are good readings.

Can you drive the car and watch the enrichment /EHA current as you accelerate and experience the problem?
__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
Reply With Quote
  #3  
Old 04-21-2004, 03:34 AM
Registered User
 
Join Date: Sep 2003
Location: Norway
Posts: 12
Hmm, then I have to use a cable, I'll see what I can do.
It will be easiest to use the duty-cycle then I think.

Grunde
Reply With Quote
Reply

Bookmarks

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
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 08:01 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page