08 viper exhaust

[silversrt]

Picked up an 08 Viper w/ bellanger headers and catless exhaust. Rear O2s are not connected setting off a CEL. Dont think there is a port on modded exhaust for them.

Do rear O2 sensors have any effect on performance or only indicate a CAT issue?
Is there a place to pick up O2 sensor simms like I had on earlier viper to trick ECU into thinking proper CAT operation and turn off CEL?

 

[Garron]

Do rear O2 sensors have any effect on performance or only indicate a CAT issue?
Is there a place to pick up O2 sensor simms like I had on earlier viper to trick ECU into thinking proper CAT operation and turn off CEL?[/QUOTE]

The simms for the oxygen sensors on the gen 4 cars are made to work with the oxygen sensors connected to the exhaust so you have a changing voltage signal.

The vehicle will not run right without a proper (fake or not) signal.

The cleanest thing you could do is install the mopar raceing computer. It does not look at the down stream oxygen sensors.