Idle
Thread Starter
Junior Member
Joined: Nov 2013
Posts: 19
Likes: 0
1996 s420
Idle
New to the Benz works and definitely new to the w140 I can't lie when I say it's bny Abbas though and a couple days ago it started doing this thing when I come to a stop it will idle up and down and then die any ideas ???? Just want to fix her oh and no codes
Newbie
Joined: Sep 2013
Posts: 9
Likes: 0
1996 s320
My idle did the same thing except it didn't die.Some times it would die if it wasn't allowed to idle a little bit in cold weather.I got a bosch maf and it solved my problems.I was also told it could be a gas purge valve that be cleaned or replaced.Im not an expert though.Maybe some one will chime in with a better answer.
Thread Starter
Junior Member
Joined: Nov 2013
Posts: 19
Likes: 0
1996 s420
See I thought maybe MAF maybe dirty throttle buddy dirty injectors spark plugs the usual I just didn't know if anyone else had this issue before. it's going from idle which looks to be around 650, to 1200 then will drop down to 200. It will do this a couple of times and then die and it doesn't do it everytime, but as I was driving home from work it was doing it sporadically while driving. Anyone have any ideas on what to look for?? When I bought the car I had a code for p0410 I believe that's the secondary injection I took to to my mechanic he said he couldn't find issues and that the code wasn't on the computer anymore sooo could that be my problem
MBWorld Fanatic!
Joined: Jun 2010
Posts: 1,246
Likes: 52
From: tennessee
s320
all answers above are good,you can test MAF be blowing air thru it,engine should change sound.If none of answers work,it could be your throttle body wires.Pull tape of a section of throttle body harness and check for wire with lost of brittle insulation.
