Well my check engine light keeps coming on every now and then. I still get the same code 7 long 2 short(07,02). This has to do with a 02 sensor. I think it was the right back catalic. The one right after the cat. Well I replace it and keeps coming on. Does anyone know what the hell the problem is?

 

well i might be a retard, but i always thought that after you replace something electrical(sensors, gauge cluster, etc), your supposed to reset the ecu, unless you did that. In that case ignore my post.

 

By any chance, you didn't get any anti-seize compound on the sensor when you installed the sensor? Sometimes, the sensor will pick this up throwing an ECU code.