im getting this code, no CEL , but the scanner wont reset it.

do you think its a vacuum leak?? any help thanks

 

I would think THAT if the scanner CAN'T reset it....than it is still a problem.So yes it could be a vacuum leak.
I would check the vacuum line that controls the resonance flap...not sure where it is on your car(I have a 997) BUT it has to be close to the airbox (I would think)..
It will be a solenoid(probably grey color) with a wire/plug to it and two vacuum lines.....



Stacy

 

thanks stacy , i think i found the problem , i was looking at some hoses and i saw a broken one ,i see the other end of the hose behind the alternator im gonna have to pull it out and reattach it ,

you think this could be the problem ?

 

YUP that looks like a solenoid with vacuum lines attached to it....I can almost promise you that is it!

Just go to your local automotive supply and get a vacuum hose with small opening and then clamp it to the two broken ends...OR go buy one from Porsche parts.
I do think you may need to remove the plenum and resonance flap to get to the back side of that line(a bit of work)....if you decide to change the whole line!


Stacy

 

That is the vacuum line that goes from the solenoid switch to the left of the alternator area to the flap in the take system. The challenge is going to be getting at the fitting on the back side of the intake. You will probably have to take off the airbox, the throttle body and the plenum to have much access to it. You can't really see it as it is on the back side of the intake tube that is behind the plenum. A real pain to get at. I will see if I have a picture of it that might help.

 

Hope these might help.

 

sooo clean:d

 

Those are pictures of a manufactured engine that has never been installed. Here is one of mine after 8+ years for Chicago weather.




Quite a difference!

 

i see the other broken end, im gonna try to attach the 2 peices, i dont feel like taking the whole engine apart for one hose, what does this hose do exactly?

 

those damn tubes are very brittle from the engine heat...I'd accidently broke mine awhile back..Luckly it was toward the front end..I reattached it with some silicone tube that fits snuggly to the vacuum tube and wrapped it with a rubber casing to prevent it from cracking.... GL with your repair....

 

If I am NOT mistaken that solenoid/vacuum line keeps the resonance flap closed at LOW rpm and then opens at a preset(higher) RPM to allow air to flow more freely and make more power in the top end!
I am just not sure of what rpm it opens.....I think around 5000 rpm

Stacy

 

Tuning flap not actuated from 700 to 3120 rpm and from 5120 rpm .

Tuning flap actuated from 3120 to 5120 rpm , if the throttle is also more than 30 % open at the same time.