[Ehcsrop718]

Hi All,

Interested to hear if anyone has had the same issue as me and how it played out.

718 Cayman base currently at dealer for diagnosis of 0 boost pressure. They thought this could be wastegate related but are now saying needs new turbo and waiting for advise from Porsche.

It's not even a year old and to make matters worse I have been given a 180bhp diesel Jaguar XE while I wait for the fix. It is awful!

 

[alf_17]

...and to make matters worse I have been given a 180bhp diesel Jaguar XE while I wait for the fix. It is awful!

It could be worse, at one time when I had a BMW in for service I got a bicycle as a loaner

As for your Porsche, I hope they fix it quickly.

 

[JazzCatGab]

One of four things I put on my list to have the dealer check during my first few weeks of ownership was I never saw the boost pressure move off zero. Like the other three, it turned out to be not an issue (an other was that the gear select helper never indicated the three colors of high revs because I was staying under 4,000 RPMs). What was happening was I'd kick it to trigger the turbo and then I'd look at the gauge and it would be 0. I went for a ride with the service manager and when he kicked it, and I was watching the gauge, it worked! It was a timing issue for the device between the steering wheel and seat! You might see if this is your experience too.

 

[Ehcsrop718]

One of four things I put on my list to have the dealer check during my first few weeks of ownership was I never saw the boost pressure move off zero. Like the other three, it turned out to be not an issue (an other was that the gear select helper never indicated the three colors of high revs because I was staying under 4,000 RPMs). What was happening was I'd kick it to trigger the turbo and then I'd look at the gauge and it would be 0. I went for a ride with the service manager and when he kicked it, and I was watching the gauge, it worked! It was a timing issue for the device between the steering wheel and seat! You might see if this is your experience too.

UPDATE:

Fault diagnosed by PC Teesside as sticking wastegate. This resulted in turbocharger replacement as the wastegate is integral to the unit on my model.

 

[Nosmo]

UPDATE:

Fault diagnosed by PC Teesside as sticking wastegate. This resulted in turbocharger replacement as the wastegate is integral to the unit on my model.

Have they had the car all this time? Good to hear they have found the fault though. Did you at least get a nice loaner?

 

[Ehcsrop718]

They outsource the breakdown cover (Porsche Assistance is just The AA) and car hire service is Enterprise Car Hire so I got stuck with a 180hp diesel Jaguar XE. It felt like a boat ha (there were no customer cars available at the garage)

They had the car for 9 days in total, it was soul destroying :/

 

[antennahead]

What kind of boost pressure readings are you guys seeing during break-in under 4,000 RPMs? Mine doesn't move much off of ZERO, but I haven't been pushing the car. Thanks.

 

[Ehcsrop718]

I dont remember as I'm over 10k now but if it helps the salesman told me I didnt need to run it in

 

[phroenips]

I dont remember as I'm over 10k now but if it helps the salesman told me I didnt need to run it in

This is an oft-repeated claim. To which, I ask to consider what expertise, motivation, and liability a salesman has in this regard.

 

[jimmuller]

What kind of boost pressure readings are you guys seeing during break-in under 4,000 RPMs? Mine doesn't move much off of ZERO, but I haven't been pushing the car. Thanks.

I run zero quite often, more or less most of the time. Running in Sport mode means higher rpms and less boost. When I push it enough to get boost I'm not genetally looking at the boost gauge.

 

[GregW]

What kind of boost pressure readings are you guys seeing during break-in under 4,000 RPMs? Mine doesn't move much off of ZERO, but I haven't been pushing the car. Thanks.

It's unlikely you'll get much boost, and then only for very short times, until you are pushing the car. Some acceleration up a good sized hill will usually trigger a small boost.

 

[antennahead]

It's unlikely you'll get much boost, and then only for very short times, until you are pushing the car. Some acceleration up a good sized hill will usually trigger a small boost.

I made a point tonight of pushing the car some and I got the boost gauge to register some boost. Unfortunately it happens so fast you're backing off the accelerator at 4,000 RPMs in the blink of and eye. I've also noticed the minute to let off the accelerator the boost drops to zero almost instantaneously. Can't wait for 2,000 miles to come and go

 

[718S]

I made a point tonight of pushing the car some and I got the boost gauge to register some boost. Unfortunately it happens so fast you're backing off the accelerator at 4,000 RPMs in the blink of and eye. I've also noticed the minute to let off the accelerator the boost drops to zero almost instantaneously. Can't wait for 2,000 miles to come and go

Put it in Sport+. You’ll get some boost most of the time!!

 

[antennahead]

Put it in Sport+. You’ll get some boost most of the time!!

Only have "Sport" in my optioned car, no sport plus. It's fine though, I can already tell that when I reach break-in mileage, I'm going to be a content happy driver

 

[GTS18BGTS]

I drive the car in sport+ pretty much 100% of the time. Otherwise I feel like I'm driving a hamstrung car. Anything less that sport+ is detuning. Why would I want to detune a car I bought for speed and handling?

 

[antennahead]

I don't have the sport chrono, and in sport mode I don't think my car is "de-tuned"

 

[GTS18BGTS]

I don't have the sport chrono, and in sport mode I don't think my car is "de-tuned"

My point was that each step in the modes brings on more capabilities in the engine and suspension. Not sure why I would want to turn them off or detune the car's capabilities.

 

[JazzCatGab]

My point was that each step in the modes brings on more capabilities in the engine and suspension. Not sure why I would want to turn them off or detune the car's capabilities.

Ah, if you ran on some of the back country roads I find, typically in between the nice, twisty roads I enjoy the most, you would appreciate more range in suspension tension (ooh those two words go together nicely). But I do appreciate what you are saying. I like Sport mode because it is a little stiffer, and you get the exhaust burbles, and the automatic off is disabled. However, in my Individual mode, I have it set up with Sport mode and Sport PASM because sometimes the twisty back roads become very twisty indeed! I also have 18" wheels so I may be more inclined to cross tempt fate on crappy surfaces.

Oh, and to the original post, now out of break-in period, I do happen to notice boost more, but you almost have to be watching it exclusively to see when it happens, in most non-track driving.

 

[Raz718]

Hi All,

Interested to hear if anyone has had the same issue as me and how it played out.

718 Cayman base currently at dealer for diagnosis of 0 boost pressure. They thought this could be wastegate related but are now saying needs new turbo and waiting for advise from Porsche.

It's not even a year old and to make matters worse I have been given a 180bhp diesel Jaguar XE while I wait for the fix. It is awful!

I was driving home the other day and went to overtake a car and suddenly realised my car had no power, the max boost I could get was 1 psi . I drove home and waited a hour so so and tried the car again and it was fine. Have only driven a couple of short journeys since and it has been ok. Was your problem progressive or did it just happen one day and it was stuck like that? Mine is also a base 718

 

[JazzCatGab]

I was driving home the other day and went to overtake a car and suddenly realised my car had no power, the max boost I could get was 1 psi . I drove home and waited a hour so so and tried the car again and it was fine. Have only driven a couple of short journeys since and it has been ok. Was your problem progressive or did it just happen one day and it was stuck like that? Mine is also a base 718

Just for a basis of understanding, how many miles have you on the odometer and how frequently do you kick it enough to feel the turbo effect? I have a base Cayman also with about 4K miles and I do tend to take every opportunity (I can find an excuse on an empty road, particularly on an empty road) to feel the turbo kick. For this reason, I don't worry about gumming up a function driven by exhaust gasses and all the stuff they contain. However, I can see where daily driving or "reasonable use" may be an issue.