So all i was tryin to do last night was put in a header with a test pipe. i had to extend the secondary o2 sensor for the test pipe. So i cut the o2 sensor wires and extended the wire after that i put in everything (header and test pipe) and started up the car. My car pulled codes, a 20 code and a 65 code. 20 is an ELP code forgot what it stands for and it pull a 65 which is secardary o2 sensor heater fault. What's wrong anybody had this experiences before?

 

I would check for continuity on all of the wires but it may still show an error code because with a test pipe the secondary o2 sensor needs to read different than the primary and with a test pipe it won't read different. You could try grounding the sensor to the exaust somewhere and plug the bung.

 

i found the problem. it was the alternator fuse blown...