P0102 SATURN -i took off catalytic converter now car runs rough what should i do?

Question

i replaced catalytic converter with a exhaust pipe now car will not stay running

Answer 1

HI there,

The code is actually for the mass air flow sensor. Some cars need the back pressure from the converter to run properly, also without the converter the O2 sensors aren't reading properly, this will cause fuel mixture issues as well.

I would put the converter back on it and then check the maf sensor.