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 > Search Forums
Reload this Page Search Results
Register ShopForum Gallery FAQ Calendar Today's Posts Search

Showing results 1 to 27 of 27
Search took 0.01 seconds. Search: Posts Made By: algae1
Forum: Tech Help 05-06-2004, 07:46 AM
Replies: 1
Views: 1,076
Posted By algae1
126 idle control circuit

Still working the issues with rough idle and hard starting with me 126-560SEL (86 year). I have noted the following:
-EHA current at start (cold) is very low. It should be 75-100 ma. When warm the...
Forum: Tech Help 05-02-2004, 07:44 AM
Replies: 22
Views: 2,739
Posted By algae1
idle control/enrichment

Thanks Jeff-
Well based on my testing i am concluding now that the ECU is not sending EHA current during start up/KOEO/ I put the meter on the EHA and watched the current. At cold start, there is no...
Forum: Tech Help 04-30-2004, 10:02 AM
Replies: 22
Views: 2,739
Posted By algae1
idle control/EHA CURRENT

Well I just tested the eha current. Cold start (KOEO) condition I observe zero current to the EHA. During starting cranking no current either. After warm up I observe a current to the EHA of 4-5 ma...
Forum: Tech Help 04-29-2004, 08:19 AM
Replies: 22
Views: 2,739
Posted By algae1
idle control

many thanks gents -- i have a few things to add---

-first, in the design of the idle valve it appears to me that there is a constant bypass (a small tube say about eighth inch in dia) that "short...
Forum: Tech Help 04-28-2004, 08:26 PM
Replies: 22
Views: 2,739
Posted By algae1
idle control

Steve-
Thanks your experience . You suggest that the performance of the valve is not linear wrt ICU current - especially at lower current levels (or out of spec limits). Are u suggesting then that...
Forum: Tech Help 04-28-2004, 07:48 AM
Replies: 22
Views: 2,739
Posted By algae1
idle control

Yes I agree this is starting to make sense now. However, I hasten to add that in my previous troubleshooting I removed the valve, ran carb cleaner thru it, bench tested with 12 volts (understand that...
Forum: Tech Help 04-27-2004, 03:23 PM
Replies: 22
Views: 2,739
Posted By algae1
idle control

Not sure i am understanding what is happening still. My symptoms are a slow and rough idle with a lower than spec control voltage and current. If raising the voltage and current slow the idle then I...
Forum: Tech Help 04-27-2004, 01:46 PM
Replies: 22
Views: 2,739
Posted By algae1
idle control

thanks for the inputs gents--interesting reading. My reading at the connector when attached and engine running is 1.25 volts or 2.5volts at 50% duty cycle as steve points out.

I hve placed full...
Forum: Tech Help 04-27-2004, 10:48 AM
Replies: 22
Views: 2,739
Posted By algae1
idle control unit

i just tested the control current to the valve and it is running about 180ma or substantially below spec of 600-1000 ma. just for kix i unplugged the ovp while the engine was running and the current...
Forum: Tech Help 04-25-2004, 11:31 AM
Replies: 22
Views: 2,739
Posted By algae1
126 idle control unit operation

my car is a 86 560SEL with 190K miles on the clicker.


I am still trying to get to the bottom of a hard start/rough idle condition that has persisted thru all of my other troubleshooting...
Forum: Tech Help 03-31-2004, 08:28 AM
Replies: 0
Views: 739
Posted By algae1
560SEL bad idle

I am getting close i think to finding out what is causing my bad idle . I am not questioning why the voltage at start up and idle at the idle air valve is ONLY 1.25 volts dc. From other posts on the...
Forum: Tech Help 03-29-2004, 09:10 PM
Replies: 5
Views: 1,048
Posted By algae1
follow up

Well i did do the injectors as a replacement early on to attempt to resolve this problem. I didnt see any difference in the idle problem. I have observed the following :
-the voltage "open loop"...
Forum: Tech Help 03-29-2004, 11:13 AM
Replies: 5
Views: 1,048
Posted By algae1
sorry - model is 560SEL 1986 vintage. --USA...

sorry - model is 560SEL 1986 vintage. --USA model.

Thanks.
Forum: Tech Help 03-29-2004, 08:31 AM
Replies: 5
Views: 1,048
Posted By algae1
rough idle/hard start cold-126

I am shooting this problem and have now focused on the idle speed air valve area of the EM system. I have been thru the archvies and recall hearing that at idle when one removes the two pin connector...
Forum: Tech Help 02-18-2004, 11:02 AM
Replies: 2
Views: 1,198
Posted By algae1
560SEL cold start hard

I have been bothered with this problem for some time now and have recently done more checking in an effort to understand it more -- all very interesting but to no avail so far. I am experiencing very...
Forum: Tech Help 01-05-2003, 11:17 AM
Replies: 2
Views: 974
Posted By algae1
Unhappy 126/560SEL heater flap

Merc is a 1986 560SEL USversion.

I have diagnosed my "cold feet" problem to the fact that the heater door does not retract once the defrost closes is. In other words-- if i push leftmost defrost...
Forum: Tech Help 07-16-2002, 07:49 AM
Replies: 8
Views: 3,795
Posted By algae1
Resolution-cold start/rough idle

This situation was resolved last week with the replacement of the main vacuum hose. The idle problem worsened to the point where the engine almost would not start, and the brake booster was not...
Forum: Tech Help 07-05-2002, 08:03 AM
Replies: 20
Views: 4,113
Posted By algae1
david-having similar experience with my '86...

david-having similar experience with my '86 560SEL. What i am finding out is that the engine mgt system on this vintage of car is amazingly complex and subject to component failures that are hard to...
Forum: Tech Help 06-28-2002, 08:08 AM
Replies: 5
Views: 930
Posted By algae1
86 560SEL

Since i bought one used about 5 yrs ago I can give you thoughts-be careful of the following:
-as stated previously the timing chains and tensioners will need to be done at 100K miles. $800-900 . ...
Forum: Tech Help 06-26-2002, 03:25 PM
Replies: 1
Views: 897
Posted By algae1
W126 idle air valve - test

I am trying to fix a hard start/rough cold idle problem and from a search it appears one of the culprits could be a stuck idle air valve.

Is is a valid test of the system (and to test the idle...
Forum: Tech Help 06-24-2002, 11:11 AM
Replies: 2
Views: 724
Posted By algae1
I am fightin the same problem on my 560SEL and i...

I am fightin the same problem on my 560SEL and i have not found the problem yet. Some things to look at further that come to mind-
1)check the coolant sensor and the resistance values
2)check the...
Forum: Tech Help 06-19-2002, 10:46 AM
Replies: 8
Views: 3,795
Posted By algae1
Thanks Moe- Yes this one has me stumped....

Thanks Moe-

Yes this one has me stumped. Wires and plugs are fine and i put new cap and rotor on. I suppose fuel dist is possible like u say -- i did see on a search that there are screens that...
Forum: Tech Help 06-19-2002, 10:12 AM
Replies: 8
Views: 3,795
Posted By algae1
moedip-hbofinger Many thanks for your reply. I...

moedip-hbofinger
Many thanks for your reply. I had the local wrench check the fuel leak downs and we verified at the ditributor the pressure was ok. That was our initial thought as well.

Cold...
Forum: Tech Help 06-19-2002, 07:59 AM
Replies: 8
Views: 3,795
Posted By algae1
86 560SEL cold start/rough idle

I continue to frustrate myself trying to find the source of this annoying cold start problem. I have diagnosed to the point where I observe the following:
-Engine cranks hard (about 7-10 sec) and...
Forum: Tech Help 06-04-2002, 08:30 AM
Replies: 0
Views: 643
Posted By algae1
560SEL N3 pin outs

I am troublshooting a cold start problem and have encountered an inconsistency in my car vs. the mb service engine manual. N3 as stated in the docs should be a 25 pin connector (21 pins used) - but...
Forum: Tech Help 05-30-2002, 09:49 AM
Replies: 0
Views: 1,357
Posted By algae1
560SEL hard start /low rough idle

Have been struggling with this prob as follows:
-After sitting overnight at about 60 deg F ambient cranks hard (5-8 sec) , starts, idles slow and rough and stalls. Third try seems to work and idle...
Forum: Tech Help 05-28-2002, 08:41 AM
Replies: 1
Views: 876
Posted By algae1
560SEL hard start /rough idle

I am diagnosing this problem and have been through the search facility etc to determine next steps. I am getting closer but at a dead end for now. This is an 86 126/117 US version. I have been though...
Showing results 1 to 27 of 27

 
Forum Jump


All times are GMT -4. The time now is 01:07 AM.

Contact Us - Mercedes-Benz Discussion Forum - Archive - Privacy Statement - Terms of Service - Top

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