if you go with catless both but still have the bung in will that cause a cel?
thanks

 

Completley catless, Yes.

 

no it will not depending on the down pipe you get did the same thing to mine no cels at all runs great

 

thanks im going to go with a local muffler shop to make an up pipe and down pipe with out cats
im goign to have the bung still in so i hope i wont get a cel

 

Trust me, you'll get one.

 

the up pipe will? and why? is it cuz the cats i do have arent doing enough work?

 

What a catalyctic converter does is burn the excess gas that wasn't burned up during the combustion cycle in the cylinder.

The O2 sensor reads the free oxygen in the exhaust. The first sensor is gonna change voltage reading all the time. If the cats are working correctly then the second 02 sensor should give a steady reading because the cat is doing its job by burning up the excess gasses.

Now if you remove cats then it is not gonna burn the extra fuel going through the exhaust. This will cause the second 02 sensor to read the same or similar to the first sensor and it sends a signal to the ECU and trigger a MIL.

Thank you have a nice day

 

what if you get that diode thing off ebay i think that will fix the sensor or what if i zip tie the sensor to the out side with no bung?

 

You can get the MIL eliminator. If you zip tie the O2 sesor out side of the bung you will get a voltage reading of 0 and the ECU will think that there is something wrong with the O2 sensor and trigger a MIL.

 

so whats the cheap fix?

 

MIL eliminator. I think you can buy 'em for around $10 - $15. Check the for sale by vendor section.

 

I just installed my MIL eliminator and my ceL is gone now. It was actually going on and off periodically before I installed the eliminator. I installed it and the light stayed on for that day but never came back after. I assumed the ecu was probably learning it or something. I am not sure if mine was from pony xpress, but I am sure it works the same way. For 15 bucks, it is well worth it!