Hey guys, I recently bought a 2000 Spyder, with a 2zz swap done by the previus owner. I have been getting a CEL that has been coming and going, but now it has been staying on and i've noticed that my it has been idleing pretty rough and burning more gas than normal. The spyder already had all the basic bolt ons when i got it (headers, intake, exhaust). My dad said it probably had something to do with the fact that the headers delete one of my 02 sensors. I don't really know much about all this, but i think if it was that then the light would have been on the whole time and not coming and going like it has. I don't remember the code it is giving exactly, but it says bank 1 sensor too lean. I already cleaned the MAF, and bought a new gas cap to make sure it was sealing properly. Any ideas as to why the CEL is on?