Test Pipes P2a00 CEL help
 

I've got CNT resonated test pipes installed and I've been throwing the P2a00 CEL but not the P2a03 CEL that test pipes usually throw. Any idea's on cause ? And would it be a problem to drive around without getting it taken care off ?

You will be ok, I believe you will need a tuner to disable that code.

-Another thing is that sensor could just be bad but I doubt it.

-look and listen for an exhaust leak where the HFC's were installed

-check the wires on the sensor and make sure its in good condition

I want to assume this is Ashok... If it IS, he does have an exhaust leak where his test pipes are

IF it is, then that is the exact problem and don't worry about the other stuff. A leak before the 02's (SENSOR) will ALWAYS throw a code like this. After the sensors you will not recieve a code and nothing will be wrong except for the exhaust leak sound.