911 Rod

Hello Gents,
Having an issue for a while now that occasionally on full boost the car hesitates and throws P0300, P0303, P0302 codes. When they are reset, no codes unless I do the same.
Car runs great otherwise.
I have new plugs (will inspect the coils) fuel filter and air filter, but would like to order any other parts I need before I put it on the lift and go at it.
I read about a cam sensor bracket, but couldn't find the thread.
Thanks
Rod

Carlo_Carrera

Does your car have a tune?

Carlo_Carrera

This is what the cam solenoid bracket looks like. It's right there next to the middle spark plugs.

https://gallery.rennlist.com/albums/...noid.sized.jpg

911 Rod

I don't know if it has a tune. I bought it 3 years ago with no history.
Thanks for the pic of the bracket. Can it be tested or is it an actual physical failure?

pfbz

What kind of sustained boost pressure where you getting 4th/5th gear under load, prior to the codes?

T10Chris

Bracket is a physical failure, it cracks and the solenoid moves around, but the solenoid itself can also fail.

911 Rod

I'd be surprised if boost has gone to 1, but maybe.
.9 for sure.

pfbz

If you were seeing steady .9, I'd guess it has a tune of some sorts...

911 Rod

It sure likes to go.

I just drove the car and the code has reset itself.

pfbz

How shortly after the new plugs did you start throwing codes?

How old are the coil packs?

911 Rod

Should have been more specific. Sorry.
I have not put the plugs in yet.

Carlo_Carrera

This is the part# for the bracket. 996.105.310.72

pfbz

Given the reputation (particularly with a tune) for Turbo's eating plugs and cracking coils, that seems like the right place to start without looking for too many other possible culprits.

With the hassle of the job, might make sense to just replace those coil packs instead of just inspecting them... OEM Beru's are pretty reasonably priced.

911 Rod

Thanks!!
Could this be the culprit?

They have a reputation for eating plugs and cracking coils?

napoleon1981

The copper plugs wear pretty fast. 30k is the maintenance interval, but with a tune its more like 10k from what I understand. The coils do crack as well. I had 4 out of 6 cracked at 50k miles.