» » »

Mercedes-Benz Q&A

Ask Your Question

1996 Mercedes-Benz C220 Question: Im trying to smog the vehiche but there are 3 tests obd2 isnt performing.



bdytec, Los Angeles, CA, July 09, 2014, 00:19

Catalyst, egr and 2nd air are the 3 test the computers not performing, on a 1996 there can only be 2. Ive tried the drive cycle a couple times but its still not passing.i need to smog vehicle. What can I do?

1 Answer
Flag This
  • Answer #1

    Greg's Orange Auto (13472 Answers) , Orange, CA - (714) 361-9386
    globalhelper July 09, 2014, 06:10

    have a mech scan it for poss pending codes and also live data to determine cause of monitors to not reset

    Flag This
  • Reply

    bdytec, July 09, 2014, 08:08

    Ive had it scanned by 3 mechanics, theirs no codes, also all systems are coming up normal. Ive been told I just need to drive it. I put almost 400 miles on it , performed the drive cycle 2 times and I still have 3 tests not being performed. Question , is it normal to lock the trunk with key and have Door locks lock at the same time..locks dont lock with key at drivers door. Im wonder if theirs a short and if so, if thats whats causing 3 obd2 tests not to perform . I need to have at least one of the three test to perform in dorder to pass smog.What can I do.?.

    Flag This