Will test pipe cause CEL?
#17
Originally Posted by Blacksheepdj
The warm up cat is the one in the header.
Look, you aren't getting this. You have the front O2 sensor, then some catalytic material in the stock header (exhaust manifold), then the second O2 sensor. Those are the only things that factor into the equation.
The rear catalytic converter does not matter in terms of CEL.
Look, you aren't getting this. You have the front O2 sensor, then some catalytic material in the stock header (exhaust manifold), then the second O2 sensor. Those are the only things that factor into the equation.
The rear catalytic converter does not matter in terms of CEL.
thanks for clarifying