[chance2benz]

My 93 300e recently started running like crap (hesitation,terrible gas mileage,stuttering,stalling, etc). Before that she ran very good. While trying to diagnose problem I discovered that the 'check engine' light does NOT work. It does not even light up for three seconds like ALL the other lights on dash assembly. Also discovered that the under hood 16 pin coder does not give off any codes as well(NO blinks whatsoever)......Are these two connected in any way??? So i respectly request this forums collective assistance in getting my 'check engine' light And underhood coder back to operation..... THANKS everyone with advise....

 

[deanyel]

Pull the instrument pod and check the bulb, i.e. swap out a bulb. How are you reading the codes? Most "codes won't read" complaints are operator error of some sort.

 

[macdrone]

did it ever work? my 400E does not have a dash check engine light. Check your manual.

 

[daddi]

Replace the OVP.