Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 02-12-2001, 12:09 AM
Posts: n/a
The non-U.S. 300e has a 4-cylinder engine which I believe is the same as a 190e engine. The problem is that when one accelerates hard the engine backfires and nearly dies. If the temperature sensor wire is disconnected it accelerates normally. Another problem is that it does not idle properly and will die once it warms up.

When pulling the wire on the temp sensor on the front of the engine, the car will idle fine but will not start unless the wire is re-connected to the sensor.

Have switched computers with one from a 190e and the problem did not change. Changed the temperature sensor and that did not change anything.

I suspect there could be an electrical problem that causes the computer to malfunction. One thing noted that sometimes when the ignition switch is turned on the parking lights come on. The owner of the car said this started about the time the engine problems started.

Any ideas?

Thanks, Bob
Reply With Quote
Old 02-12-2001, 09:28 PM
Registered User
Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
You are having some sort of electrical problems. They may not be related to the engine problem though.

You may want to check the fuel pressures, I have seen fuel pumps cause lean problems. The other thing is that coolant temp is about 50% of fuel mixture on that car. When you unplug it, you are setting the computer to a fixed value. You may have to get professional help for this one.
Donnie Drummonds
Reply With Quote
Old 02-13-2001, 07:42 AM
Posts: n/a
Have you checked the coolant temperature sensor?

Good luck,
Reply With Quote


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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help 86 300E ignition problem jmyers177 Tech Help 4 01-23-2005 10:24 PM
1993 300E 3.2 idle problem gsl56 Tech Help 15 11-11-2004 01:22 PM
Turn signal problem on 89 300E Takedown Tech Help 8 08-29-2004 10:54 AM
Looking for model of my car, 87 300e dirtysocks Open Discussion 1 08-18-2004 02:23 PM
300e hot start problem Tom Garrison Tech Help 4 08-14-2002 09:21 AM

All times are GMT -4. The time now is 04:24 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, 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