Black Smoke & Stalling: 997 Porsche Injector Crisis?

Hey there! I had a very similar issue with my 2006 Porsche Cayman (I've got some experience working on cars, but nothing too advanced). The symptoms you're describing are exactly what I dealt with last year. My trusted workshop diagnosed it as a faulty injector, pretty common issue actually. Got it fixed by replacing the defective injector and it set me back about 515 Euro, but the car's been running like a charm since then. Before I share more specifics about my repair experience, could you tell me your engine size and how many miles you've got on the clock? Also, have you noticed any check engine lights? There might be some differences between our cars' setups, but I might be able to give you more relevant advice with those details.

Thanks for chiming in! I've got 32140 KM on the clock, and my last service was just a couple months ago. The symptoms you described with your Cayman sound spot-on to what I'm experiencing. Haven't seen any check engine lights yet, but the black smoke and rough idle are really starting to worry me. I'm thinking I should probably take it to my mechanic before things get worse. Did you notice any warning signs before your injector completely failed?

Hey again! Yeah, with my Cayman, I actually did notice some warning signs before things went completely south. First thing was that slight hesitation during acceleration, you know that split-second lag? Then the black smoke started showing up, just like you're experiencing now. Looking back, I should've taken it to the shop sooner because in my case, what started as just black smoke and rough idle eventually led to that complete failure I mentioned. The funny thing is, my check engine light didn't come on until pretty late in the game, so don't wait for that as your only indicator. Since you're at 32140 KM, you're actually in a better position than I was, mine had about 75000 KM when the injector went bad. But these Porsches can be pretty finicky with their fuel systems. I'd definitely recommend getting it checked out soon, like really soon. My mechanic told me that catching it early actually saved me some money in the long run because there wasn't any additional damage to deal with. By the way, after my repair, I noticed my fuel economy improved significantly, went from burning through a tank like crazy to getting back to normal consumption. It's amazing how one faulty injector can mess with everything! Let me know what your mechanic says, I'm curious if you're dealing with the same issue I had. Good luck!

Thanks so much for the detailed response! That's actually really helpful to know about the warning signs you experienced. I'm definitely not going to wait around, already called my mechanic and booked it in for next Tuesday. Better safe than sorry, especially with these performance cars! You're right about catching it early, would hate to end up with a bigger repair bill because I dragged my feet on this. It's actually relieving to hear your fuel consumption went back to normal after the fix. Mine's been drinking fuel like crazy lately, so hopefully, it's just this injector issue and nothing more serious. I'll update you once I get the diagnosis from my mechanic. Really appreciate you taking the time to share your experience, it's been super helpful!