rlh23

What CEL codes are y'all getting after installation? I installed a Speedtech X pipe on my 997.1S and am getting P2196 that comes on after about 20 miles. I clear it, and it comes back. I'm hoping it's an exhaust leak.

German888

My codes are:
P2197 O2 sensor stuck lean bank 2 sensor 1
P2270 O2 sensor Stuck lean bank 1 sensor 2
P2097 Post cat fuel trim to rich bank 1

We should turn this into a "How did you fix" your o2 sensor CEL's thread.

Less than pleased with the issues although I went in with eyes open. Can't place blame elsewhere...

In an effort to solve the CEL's I ordered a set of el cheapo $24 shipped 45 degree spacers and will install them post cat. Will advise as to my results.

If anyone has had success with clearing these codes after installing either 200 cell version please share your experience.

rlh23

Turns out I think mine had to do with twisted O2 sensors. I replaced them (pre-cat) and drove the car for 40 miles and the CEL hasn't come on. However, the weather here has been awful, so I haven't had a chance to drive it anymore. Hopefully the CEL's are gone for a while.

Jack667

When you say 'replaced', you mean you reinstalled the same ones, taking care not to twist them? Or did you replace them with new ones?

Also, I got 112 miles once between CELs, so it will take me ~200 or so miles to feel good about these damn things...

rlh23

I put new pre-cat sensors in ($83/each). I guess I'll need to put a few more miles on the car until I have temporary CEL peace of mind.

Jack667

ok - thx - interested to hear how that goes.
When I saw the earlier post (from you?) about twisted wires, I thought maybe I'd check that when I have a chance. Haven't got back to it, though...

rlh23

Drove a little last night, and of course the CEL came on (P2196). I'm thinking I'll just have to get a tune eventually.