96 E320 is killing me.

[96 E320]

Hi newbie here.. Houston area... have 96 E320. 178,000 miles.. has been a great car.. then one day it failed inspection.. code read bad EGR..so i replaced that, then noticed the battery would go down in one day so i knew i had a bad ground somewhere..couldnt find it.. so off the the shop it went.. they checked it out.. new fuel filter. and new computer.. got it back on the way home noticed it was missing.. so called the mechanic he checked it out.. bad coil.. for #2 and #5,, code read misfire on 2 and 5... replaced the coil and same.. from start up till it warms up.. runs great..just like a singer machine.. once it warms up it misses and the exhaust smells terrible.. does this sound like the auto choke is not releasing to anyone.. please help this thing is killing me... by the way.. nice forum you have here..

 

[96 E320]

21 views and not one response... whats up???

 

[Aviator]

Do a search under wiring harness some of these cars suffer from bad wiring.

 

[GEORGEROV]

Hi, Think you haven't had a response yet as the symptoms you've given and the work thats been done doesn't seem to follow any logical path to a solution. If the battery was losing its charge in a day then it doesn't follow that it was a bad earth but a current drain somewhere.(Assuming the charging system and battery were ok), Sounds like the shop was replacing parts haphazardly hoping for a result!. Seeing that coils , egr valve and ecu have been replaced then suggest you take it to a garage that knows what it is doing to read the codes!. Seeing it runs fine until it is warmed up I would now suspect a sensor, either a coolant temperature sensor or lambda sensor for example giving an incorrect signal to the ecu.

 

[Ellsy Tanners]

It could well be your air mass sensor, causing it to run rough and causing the smell as its lean or rich.

Is yours the straight or v 6?

 

[television]

You must have Bosch service agents out there, these guys know the system,,as said MAF or sensor