skalex

On 3/9/2017 at 9:50 PM, Ddavidoff said:

Following. Similar issues. I have done a lot of the same maintenance. I also found a few vacuum leaks which I fixed. 08 CTT

 

 

You might want to check out the "stutter and hesitation" thread, as it has some good info although no solution for us.

 

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how did you find the leak?

just to follow up, I found a used module for a really good price on ebay ($35), ordered and received 2 days later.

I changed it this week end and it was a module problem, everything work now!

Thanks for your feedback. I will maybe just buy one and try!

Well, I check the AOS valve and it looks like new. I just cleaned the old oil build up but it will not change anything.

That was a small project, I will look at vacuum leak this week end.

Hi angusc,

Did you figure out if it is your module? I have the same issue, 2 reds on both sides front and rear, all sensor clicks, no fault on durametric.

I removed the module and everything look ok inside (no burn mark....)

I am not sure if I try to replace the module

I look at the smoke test, i think i will try that.

I  need to dig on the leaking possibility, not easy during the week because daily car and when you start you never know when you will finish...

I will check the AOS valve too.

Spark plugs and coils, hard to believe because ii was like that before, and I replaced everything with new parts and noting changed so...

I will proceed next step by looking for leak and do a smoke test at the end of the week and hopefully i will be lucky....:)

I agree :) 

thanks for the feed back.

I will start to look at the vacuum leak, but not easy without a smoke test equipment.

I changed all coils and spark plugs a month ago. About the old one, I did not really check, because I was thinking my problem was coming from the spark plugs/coils (misfire codes).

The cat issue doesn't excite me... but I have bank 1 and bank 2, what is the chance to have 2 cat dead in the same time....

I am thinking maybe try to change the O2 sensors, but $200 to $300, I would like to be a little more sure it can be the problem before i change them.

Thank you for your feedback. I will look at this post. hopefully it will help.

I already looked at a lot of post but nothing helped me yet...

Hi all,

I have a cayenne turbo 2005, 140 000 miles now, it’s my daily.

It’s a little rough when idling, but fine when driving (all power, everything ok). I also have the issue when I am driving and stop to a red light, the car idle a little lower before coming back at normal idling (from what I understood it is maybe the engine hydraulic mount).

What I change in the last 3 months:

- spark plugs (I had some random multiple misfire (P0300) and some on some cylinders (P302, P304…)

- spark coils (due to misfire)

- driver side gas pump (died and had me stuck on a parking lot)

- valve cover gaskets (leak)

- upper engine mounting arm (needed to be replace)

- cleaning of throttle body

- cleaning of both MAF

I still have rough idle….

sometime I have an engine light on the dash, 3 or 4 time, once a month, and I have 02 sensor error. Can be reset with duramteric or reset by itself too.

So I check with my durametric again yesterday and this is what I have:

-P0431 catalyst system efficiency below (bank 2)

-P0300 random multiple cylinder misfire

-P0302 cylinder 2 misfire

-P0304 cylinder 4 misfire

-P0308  cylinder 8 misfire

-P0421 catalyst system efficiency below (bank 1)

I don’t know where to start to look now. I googled it and did not find anything. If someone has an idea I am open to any suggestion!

Thank you