More and more problems. Even though the car seems to run fine I keep getting the P0420 code(Catalyst System Efficiency Below Threshold (Bank 1)
It's a brand new high flow exhaust system with : high flow cat , 2.5" pipes,magnaflow muffler and both O2 sensors new.. Is it just my Computer going crazy ?? Has anyone else experienced this trouble code?
Thanks
It's a brand new high flow exhaust system with : high flow cat , 2.5" pipes,magnaflow muffler and both O2 sensors new.. Is it just my Computer going crazy ?? Has anyone else experienced this trouble code?
Thanks