anthony yordi

Hi guys I recently purchased this car about 7 months ago since then I got my primary cats hollowed out my secondary ones removed as well as my muffler(about four months ago) just yesterday driving on the freeway my car begin to lose power I pulled over and used my OBD2 scanner and pulled multiple codes. I would like any thoughts on resolving my issue. Car drove today idles very rough and sounds different. I am taking it to the dealer tomorrow but I would like any help you guys can give.

The codes for the cats came immediately after straightpipe.
**CURRENT CODES
P2414* - Oxygen Sensor
P2626* - Oxygen Sensor
P0430* - Catalytic converters
P0436 - Catalyst Temperature Sensor
P2A00 - Oxygen sensor circuit range
P0300* - Cylinder Misfire
P0301* - Cylinder Misfire
P0303* - Cylinder Misfire
P0302* - Cylinder Misfire
P0130** -o2 sensor circuit malfunction
****

LexBrett2

Hey Buddy,
Are you really do surprised by these codes after hollowing out the PRIMARY cat? Do you realize how serious a mod this is? Not that there is anything wrong with it!

If I were you I'd change all o2 sensors, add a post cat o2 sensor spacer, and reset the Ecu?

Have no idea why you are getting misfires though, except you might have a big vacuum leak somewhere screwing up the firing!

Your o2 sensors are going nuts from the massive increase in airflow and catalyst!

LexBrett2

Hey Buddy,
Are you really do surprised by these codes after hollowing out the PRIMARY cat? Do you realize how serious a mod this is? Not that there is anything wrong with it!

If I were you I'd change all o2 sensors, add a post cat o2 sensor spacer, and reset the Ecu?

Have no idea why you are getting misfires though, except you might have a big vacuum leak somewhere screwing up the firing!

Your o2 sensors are going nuts from the massive increase in airflow and catalyst!

anthony yordi

Hey guys I'm back haven't posted for a while but I just got my motor Replaced long story short I blew my old one this new engine is already giving me check engine lights for the O2 sensors as as well as misfire 2 cylinders. My mechanic has convinced me that once I get out to sensors and cats installed that my car will run right. I'm aware that my O2 sensors or fried do you guys think that could really be the cause of the issue on a new used motor that was just installed!! I would appreciate any feedback or advice you guys could provide.
These are my check engine codes
P0300
P2414
P0303
P0302
P0171
P2A00