2001 Boxster Camshaft issues

[kbod]

Originally Posted by blue62

Being old, single, retired, and a car nut I have time to try to help others.
I have always had an interest in things mechanical.
When the computer age came along it changed automobiles in many ways.
The DME/ECU and the OBDI and OBDII systems came along and I was lost.

What do you mean I can't adjust the timing Multiport fuel injection
Check engine light???? P-Codes????WTF?????
So I have had to try and learn what I could about those things.
It's car stuff right

Part of learning is trying to help others and getting their feedback on results.
Another part of learning is having people like you question or comment on my advice to others. Makes me go back and think about my approach.

Yes diagnosing via the net is hard.
I don't have the car before me.
I can't see it, touch it, feel it, smell it, hear it, taste it, talk to it, and it can't talk to me. So ya it's hard
Take care.

Words can not describe how grateful I am for all the help blue has given me thus far . honestly. Today I brought the car in and Replaced the factory stereo with a nice apple carplay unit (I know fix the engine then do upgrades...oopsie) and I also unplugged the mass air flow sensor and Wow it ran like extra crap. extra lumpy, extra rich, extra terrible. It's safe to say I don't think the car has a vacuum leak or a broken mass airflow sensor. My new camshaft position sensor came in but i'm waiting on my air oil separator to also come in since the cam position sensor is below the oil separator and mine is shot. Ill post a quick update when I get it replaced on if it fixes the car and if it doesn't fix the car what my deviations/actual angles are.

When I do the camshaft position sensor Ill also remove the lower camshaft rubber plug and check/repeat the timing process just incase.

[blue62]

Originally Posted by kbod

Words can not describe how grateful I am for all the help blue has given me thus far . honestly. Today I brought the car in and Replaced the factory stereo with a nice apple carplay unit (I know fix the engine then do upgrades...oopsie) and I also unplugged the mass air flow sensor and Wow it ran like extra crap. extra lumpy, extra rich, extra terrible. It's safe to say I don't think the car has a vacuum leak or a broken mass airflow sensor. My new camshaft position sensor came in but i'm waiting on my air oil separator to also come in since the cam position sensor is below the oil separator and mine is shot. Ill post a quick update when I get it replaced on if it fixes the car and if it doesn't fix the car what my deviations/actual angles are.

When I do the camshaft position sensor Ill also remove the lower camshaft rubber plug and check/repeat the timing process just incase.

Glad to try and help just hope I have in some small way
Hoping the Cam position sensor is the issue
Keep us posted I always like to hear results.

[kbod]

Originally Posted by blue62

Glad to try and help just hope I have in some small way
Hoping the Cam position sensor is the issue
Keep us posted I always like to hear results.

Ok, I think I made some progress today, I removed the AOS and replaced the cam position sensor but when putting the car back together I realized the skinny coffee straw looking vacuum hoses are all missing and just disconnected and screwed up. As to why there is a spiderweb of skinny fragile hoses in a porsche is beyond me. But I didn't put the car back together as this seems like a lead into why my car is running like crap. do you know what part number it is for all those really skinny vacuum hoses along with a routing diagram or maybe just a complete upgrade as my car clearly did have some sort of air injection leak. I am hoping I could replace those little hoses and then put on my new AOS, check the timing and if it all works.. well.. im not gonna get excited yet. Also I am going to have to replace a couple of the big vacuum hoses as they were brittle and snapped when i removed them,

edit! I just ordered a new crankcase breather hose and 4mm silicone hoses with a bunch of 3/16 fittings, once they come In I will replace all of the skinny little vacuum hoses, then put the car back together and check timing. If even after that It still runs bad i will report back on deviations etc, Im just wondering, if it was an air leak why would the car put a p1341 instead of... maybe an air leak code!!! darn it porsche you are driving me insane

[blue62]

Originally Posted by kbod

Ok, I think I made some progress today, I removed the AOS and replaced the cam position sensor but when putting the car back together I realized the skinny coffee straw looking vacuum hoses are all missing and just disconnected and screwed up. As to why there is a spiderweb of skinny fragile hoses in a porsche is beyond me. But I didn't put the car back together as this seems like a lead into why my car is running like crap. do you know what part number it is for all those really skinny vacuum hoses along with a routing diagram or maybe just a complete upgrade as my car clearly did have some sort of air injection leak. I am hoping I could replace those little hoses and then put on my new AOS, check the timing and if it all works.. well.. im not gonna get excited yet. Also I am going to have to replace a couple of the big vacuum hoses as they were brittle and snapped when i removed them,

Do the hoses go to the SAI? Secondary air injection system?
Did you get any codes??
I think there is a diagram of the SAI here on the forum. Should be able to find it using search.

[kbod]

Originally Posted by blue62

Do the hoses go to the SAI? Secondary air injection system?
Did you get any codes??
I think there is a diagram of the SAI here on the forum. Should be able to find it using search.

I found some diagrams, yes the hoses are for the secondary air injection system but there were no codes present other than the p1341... along with the generic missfire code after a while of driving

[blue62]

Originally Posted by kbod

I found some diagrams, yes the hoses are for the secondary air injection system but there were no codes present other than the p1341... along with the generic missfire code after a while of driving

Well that is interesting I would have expected SAI related codes as well as the P1341 code.
If you have access will doing the other work you should check that entire SAI system over.
There is an Air change over valve, a electric vacuum switching valve, a non return valve, and a vacuum reservoir.
an issue with anyone of them and you have constant SAI related codes.
Keep us posted

[kbod]

Originally Posted by blue62

Well that is interesting I would have expected SAI related codes as well as the P1341 code.
If you have access will doing the other work you should check that entire SAI system over.
There is an Air change over valve, a electric vacuum switching valve, a non return valve, and a vacuum reservoir.
an issue with anyone of them and you have constant SAI related codes.
Keep us posted

Ok! im back. After waiting a long time for a new hose to be shipped out today I finished all the vaccum hoses and put the car back together. started it up and for the first 10 seconds it ran good but promply went back to not running good. at idle (when it was running lumpy) the camshaft 1 actual angle was 14.64 degrees, and the camshaft 2 angle was -7.83 degrees, when I revved the engine to 3k rpm it instantly changed to camshaft 1 being -11 degrees and camshaft bank 2 being 16.61 degrees. then I let off the gas and it went back to the origional 14 and -7.

So what does that leave me at?