rossi

I believe, here is the video about the spring mentioned: 

and here’s the spring removed:

On 1/24/2014 at 10:26 AM, Stephtell said:

SOLVED!!!

And, as it turns out, it was a small oversight when re-assembling the door...

You need to secure a small spring to the actuator before assembling.

If you don't, it'll will all work fine...untill you use the central locking, after which you will not be able to open the door anymore...

Thank you all for helping out, I can remove and refit Cayenne doors and doorcards in a matter of minutes now so I guess atleast my skilllevel has improved!

I replaced the rear door actuator, quite a task. 

I tested everything, the door was opening and closing beautifully,
I decided to go for a test drive, to see if the auto-lock function works, I get back, I cannot open the door from the outside or from the inside, it was working great before the test drive,
if I use remote control, I can hear the lock is working, but the door won’t open.

Can you  please explain what spring are you talking about?

I seem to have the same problem:

I decided to get it fixed for good with flanges and the proper gasket. Highly recommend. 

The exhaust clamps on my GTS are garbage. I keep re-torquing them over the years always finding carbon deposits around them. Last few days I noticed strong exhaust smell under hard acceleration and when going uphill. I totally thought the flexpipe, one of the welds or possibly gasket gave in, turned out to be just the clamps.    

On 6/15/2019 at 7:12 AM, rossi said:

 

Just got my GTS back from the major repair, front of the car was removed, so was the front subframe as we did front main seal, upper oil pan reseal.

One week later, about 400 miles later .... just popped up CELs P0421 & P0431. Edit

 

 

 

Would anyone know if there is anything I could check that could have gone wrong during the repair to cause increased oil consumption?

Well, still battling this. 
Car burns drives good but burns lots of oil about a quart of oil every 400 miles. 
I bet, this is the reason the cats are not happy. 
Switched  to AMSOIL and adder two bottles of CeraTec. 
 

6 minutes ago, Ahsai said:

If I'm not mistaken, your precat sensors are wide band so the graph is showing +/- mA fluctuating, which is normal. The postcat sensors are narrowband so they return voltage from about 0.2 to 0.9v. If the cats are good, the postcat sensors should read about 0.7v steady at idle but yours fluctuate quite a bit.

 

The lambda line should be close to 1.0 at all engine speed.

 

So in conclusion, it seems your cats are bad (barring any exhaust leaks).

 

You could use clear the codes and rum a bottle of techron or seafoam in your gas tank and see if the codes come back. Can also check the cats monitor reports to see if that makes a difference.

I will do that. I have one bottle of Techron and another bottle on Royal Purple MaxClean on hand. I will try that. Thank you for the input.   

If you look at the black line for Pre-cat sensors, it seems to be running way too high right?

It suppose to flex between 0.1 to 1, it is pretty flat at 1. It seems to be all screwed up. 

The upstream sensors supposed to flex in values, downstream sensors should be nearly flat is my understanding, it like it is the opposite.

This is what my catalyst monitors reported, bank two failed. Bank one barely passed.

8 hours ago, rossi said:

Just realized the scanner should be in higher RPMs then just idle, I will re-test.

Bank 1 seems to look much better. This is at 2100 RPM. It looks like it is running rich right? 

Just realized the scanner should be in higher RPMs then just idle, I will re-test.

I hope I am doing this right, I definitely have fluctuation of the rear ones. This is at idle. Bank 2 looks all screwed up range wise ? The rear ones (red) show way more action. Don’t they look interchanged? 

Thank you again JFP, I scanned at idle, anything jumps out?

Thank you JFP, what do you think is causing both code to pop up like this?

I doubt both cats are just about to go.

I just spoke with the repair shop, They did not touch the O2 sensors, I might not be on the right track I guess.

On 11/24/2008 at 4:37 PM, Loren said:

P0421 Catalytic conversion, bank 1 – above limit value

Possible cause of fault

- Oxygen sensors in front of and behind catalytic converter are interchanged

- Catalytic converter faulty

P0431 Catalytic conversion, bank 2 – above limit value

Possible cause of fault

- Oxygen sensors in front of and behind catalytic converter are interchanged

- Catalytic converter faulty

You will need a tool that read the O2 sensor voltages.