SES light came on and I autotapped and these are the codes showing up. this was my first long trip w/ the burb since the Dynatech headers, I 'm assuming its a O2 sensor code. any help would be good.

 

couldn't find the P0133 but the
P0153: Bank 2 sensor 1, Sensor Slow response..O2 sensor response slower than minimum required switching frequency.

I get the P0157 code with my Dynatechs... and if I use my O2sims I get the 153,147, and 159 so It may be related to the headers.. i think the cats are too high flow and the sensors can't compinsate.

 

Those codes are for slow response on the front O2 sensors. It seems to be a common problem when you put headers on, lots of people in the PCM section complaining about these codes.

There are several possible causes.

1. You have an exhaust leak very close to both O2 sensors

2. You have two bad front O2 sensors.

3. The bungs in your headers have the O2's sitting too far outta the exhaust stream and they are not getting hot enough to work properly.

Some people just clear the codes and never have any more trouble. Others grind the O2 bungs down some to get the sensor further into the exhaust stream and hopefully get it hotter. The gases in a header are cooler than a stock manifold do to the bigger pipes and can cause the O2 sensor to not get hot enough.

I have never gotten these codes with my Dynatechs but, just relaying some info I found in the PCM section. You might want to do a search in there on P0133 and P0153, lots of info.