has anyone had any problems with their engine light coming on after removing the cats? I installed an after market Y-Pipe that did away with the cats and also installed O2 Sims and still have to constantly reset the computer due to the oxygen sensors readings.

 

If the check engine light keeps coming on the O2 simulators must be bad. Or you messed up one of the O2 sensors when you were changing exhaust.

 

it is Bank 2 Sensor1 that I keep getting codes on, which is the one before the O2 Sim. I have already replaced it twice and still keep getting a code on it.

 

The problem with those simulators is they sometimes cannot keep from setting off the engine light. It all depends on the company.

 

have you tried removing the sim and wiring a reg one in to see if it corrects the problem?

 

im having a problem with my light to, i went to autozone to see what it was and it said it was my gas cap. it stayed off untill i filled up again, what can i do to fix this, get a new gas cap?

 

sounds like you have ****ty O2 sims, try a diff brand

 

is that gas cap getting tight?

 

i guess it is, i screw it on and make sure it clicks but..

 

it is the sensor before the sims. I am not having a problem with the rear sensors with sims attached