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 ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-12-2001, 11:18 AM
Registered User
 
Join Date: Aug 2001
Location: Toronto, Ontario
Posts: 33
1988, 190e, 2.3 Engine Cuts Out

Hi there,

Tremendous forum!! Can someone advise please?

My 190E cuts out occasionally (no patterns noticed). It happens intermittently when I take the foot off the gas pedal and brake. It doesn't matter if the engine is hot or cold and normally happens when I'm travelling at speed i.e. on the highway or 60km/hr or more. The revs go down and then the engine dies quietly.

I have checked and renewed the vacuum hoses and this didn't cure it. I'm wondering if it could be the deceleration microswitch. Where can I find this switch?

VJ
__________________
190E 2.3, 1988
Reply With Quote
  #2  
Old 08-12-2001, 12:51 PM
Registered User
 
Join Date: Jun 1999
Location: Surrey, Beautiful British Columbia, Canada
Posts: 750
when was the last time you have changed your
fuel filter? replace it if you haven't, before attempting
any other fix.
Reply With Quote
  #3  
Old 08-12-2001, 01:03 PM
Registered User
 
Join Date: Apr 2001
Location: Doylestown, PA
Posts: 124
Vshah,
I am having the same problem with mine. I will be anxiously awaiting the responses. I talked to someone about the fuel filter but wouldn't that be more of a problem when the engine needs more fuel as opposed to when the RPM's are going down? I appreciate any responses as this can be a fairly dangerous situation.
Thanks

Kyle
__________________
1988 190E 2.3 (178,000)
FastLane, PartsShop and this forum rule!!!
Reply With Quote
  #4  
Old 08-12-2001, 01:22 PM
Registered User
 
Join Date: Aug 2001
Location: Toronto, Ontario
Posts: 33
Thanks for the advice Joel. You're right. I think the fuel filter has not been replaced for a long time. It certainly has not been replaced since I have had the car (about 1 year).I'll schedule it in during my next service.

I read another thread about the someone experiencing a similar problem and they replaced the Throttle Position Switch. This morning, I had a look at mine and it was covered in thick oily deposits. I cleaned the unit and the small roller this morning with WD40 and just came back from a test drive. The engine is responding a lot smoother and it didn't cut out no matter how hard I tried.

So...Kodiak, I don't know if this has cured my problem, but I don't think there is any harm in taking a look at the Throttle Position Microswitch.

I'll monitor the progress and post an update after a few days.

Thanks!

VJ
__________________
190E 2.3, 1988
Reply With Quote
  #5  
Old 08-12-2001, 01:43 PM
Registered User
 
Join Date: Apr 2001
Location: Doylestown, PA
Posts: 124
Vshah,
I also will take a look and clean mine up. Thanks, and I will be sure to let you know.
Kyle
__________________
1988 190E 2.3 (178,000)
FastLane, PartsShop and this forum rule!!!
Reply With Quote
  #6  
Old 08-12-2001, 02:55 PM
Registered User
 
Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
Most of the time we find that this is caused by a faulty spot in the fuel mixture housing sensor. This is the 3 pin sensor located on the side of the housing just below the fuel distributor.
__________________
Benzmac:
Donnie Drummonds
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 11 YRS
Reply With Quote
  #7  
Old 08-12-2001, 10:43 PM
Registered User
 
Join Date: Aug 2001
Location: Toronto, Ontario
Posts: 33
Thanks for your expert advice Benzmac. I will take a look at this too in the next few days.

VJ
__________________
190E 2.3, 1988
Reply With Quote
  #8  
Old 08-13-2001, 11:17 PM
Registered User
 
Join Date: Aug 2001
Location: Toronto, Ontario
Posts: 33
The Good news: Somehow, cleaning up the throttle position microswitch has improved the ride tremendously.

The bad news: The engine stalled twice today!! Back to square one.

I had a look at the contacts of the electromagnetic pressure actuator (fuel mixture sensor)and cleaned them up. I couldn't spot anything wrong. I'll drive some more tomorrow and see if this has made a difference.

Benzmac, can you please clarify what you mean by "a faulty spot"? How can the electromagnetic pressure actuator be diagnosed? Your guidance would be much appreciated.
__________________
190E 2.3, 1988
Reply With Quote
  #9  
Old 08-14-2001, 05:25 AM
glmoy
Guest
 
Posts: n/a
Donnie,
Is this the EHA that you were referring to.

Gary
Reply With Quote
  #10  
Old 08-14-2001, 06:12 AM
David C Klasse's Avatar
CheFrac is Back!
 
Join Date: Jan 2001
Location: Mission Hills in the City of San Diego
Posts: 2,352
Where is the throttle position sensor, and how do you clean it? I have a similar problem (symptom) on my 95 C280...
__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
Reply With Quote
  #11  
Old 08-14-2001, 09:03 PM
Registered User
 
Join Date: Aug 2001
Location: Toronto, Ontario
Posts: 33
David, have a look at:
16 valve stalling


This thread has good photographs of the Throttle position switch location.

VJ
__________________
190E 2.3, 1988
Reply With Quote
  #12  
Old 08-14-2001, 09:11 PM
Registered User
 
Join Date: Aug 2001
Location: Toronto, Ontario
Posts: 33
Still early days, but the engine didn't stall once today. Hopefully, I just needed to clean the contacts!

A good tip for anyone experiencing similar problems would be to first clean all Fuel Control System contacts and microswitches and see if that makes a difference.

VJ
__________________
190E 2.3, 1988
Reply With Quote
  #13  
Old 08-15-2001, 04:25 AM
Dave Beaumont
Guest
 
Posts: n/a
My 190 cosworth does the same. eha and air flow sw replaced with no result aaaaand still trying to sort it out. Got so bad i disconected the decel sw which cures it but stuffs up the idle speed, too fast. I also will watch with interest. I believe the computer for some reason over compensates and adjusts the idle valve too much. Why is anybodys guess
Reply With Quote
  #14  
Old 08-21-2001, 10:51 PM
Registered User
 
Join Date: Aug 2001
Location: Toronto, Ontario
Posts: 33
A week gone by and I have done about 200km of city & highway driving. The engine stalled once on the first morning going into work - probably the ECU still adjusting itself. Since then, it has not stalled at all. Touch wood??
__________________
190E 2.3, 1988
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
190e 2.3: Connection between engine temp haasman Tech Help 2 01-14-2005 11:24 AM
190E 2.3 verses 2.6 engine ejsharp Tech Help 15 01-01-2005 12:50 PM
1988 190E Motor cuts out 190 Duo Tech Help 0 02-09-2003 05:10 PM
190e horrible stalling/check engine light moomoomeow Tech Help 0 08-01-2002 04:53 PM
Wanted 190E 2.3 Engine Manual HorizonA Mercedes Used Parts For Sale & Wanted 0 12-17-2001 04:54 PM



All times are GMT -4. The time now is 03:55 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page