When I installed the test pipe I dropped the O2 sensor and I figured since the CEL fix was on that the O2 sensor was bad. I replaced it and now I have the CEL fix witha new sensor and the light still comes on. Why is this or what can it be. The code it threw before I replaced the ensor was a P0137. Any help is greatly appreciated.. It has me frustrated

 

P0137 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

Have you reset the ECU (to clear the Code) to see if it would come back on?

 

 

idk i had the dealer do it since i got the sensor free since i know the sensor is expensive

I just reset the ECU... Lets see

 

<- Waiting

 

which invidia do u have? the old or the new 70mm? the 70mm has the fouler built in but u still have to use the fouler that screws on the outside.

 

Yeah, I had a T1R test pipe on MY05 and never had a problem with the CEL fix but once I traded in MY05 for a new '07 the story changed!
Not sure if its the DBW feature that makes it more sensative than the previous models but if you search around you will notice the same problem. Ive only found one fix on my car. I bought a resonated test pipe and havent had a problem. Almost defeats the purpose of a test pipe but the resonator is only about 5-6 inches long and is placed before the O2 bung. That might be the only way to use a test pipe on '06-'07's. It does sound better too, not to high pitched like the open pipe was.
BTW, I have a test pipe available if anyone wants it...jk!

Hope this helps!

 

is the resonated tp made like a straight through resanator/exhaust (perferated inner pipe)?

 

Which 02 sensor did you replace and did you use a new OEM sensor?

 

Heres one that was on sale and is similar to the one i bought

Test Pipe

yes the resonator is a straight through perforated design unlike our oem honeycomb cat.