Seeking Advice on 2011 Lexus LFA Power Loss, Engine Instability and Potential Tank Vent Leak

Hey there, sounds like a real headache! I had a similar issue with my 2011 Lexus LFA. Just so you know, I'm not an expert, just a guy with some car experience. This exact problem, if I remember correctly, was my activated carbon filter being defective. I used to lose engine power and my ride was rough too. My wife's uncle runs a local garage, so I took my LS 460 to him. He ran a diagnosis and found the carbon filter was failing. I ended up paying 275€ to get it replaced. It sorted the issue and my Lexas has been fine ever since. Just a quick check though, have you checked your car's fuel cap, vapor hoses, or purge valve? Faults there can give similar symptoms. If you want, give me your car's mileage and maintenance history - might help me guide you better. Keep your chin up!

Hey, thanks for the advice! My LFA is at 5260 KM currently. Its last check was only a few months back, and everything seemed to be perfectly normal then. I haven't checked the fuel cap, vapor hoses, or the purge valve yet but you bet I will now. Thanks again for your insights, really appreciate it!

No worries at all! It's what we car enthusiasts do, look out for each other. Given the low mileage and recent check-up, it's a bit surprising you're experiencing these issues so soon. Still, cars can always throw a curveball. Before you start spending money, check your fuel cap for any cracks or wear that might cause a poor seal - that might cause an issue similar to the one you're having. From there, visually inspect your vapor hoses and purge valve, and check if anything's noticeably loose or worn out. Remember to always have a rag and a bucket nearby - things can get messy quickly when you're working with fuel system components. If you don't notice anything amiss, then it might be time to seriously consider the carbon filter issue I had with my Lexus, or possibly even a fuel pump or injector problem - though these are usually accompanied by a fuel smell. In any case, a diagnostics test wouldn't hurt at that point. If it does end up being a carbon filter, consider changing the garage you took your LFA to, especially if they missed it last time. Hang in there and keep me posted! You'll sort this out.

Hey, can't thank you enough for this detailed advice! I'll follow your instructions and check the fuel cap, vapor hoses, and purge valve first. If all else fails, I will get a diagnostic test done for the carbon filter, fuel pump, and even check the injectors. And you're right, I might reconsider the garage for my LFA. Gosh, cars do keep you on your toes, don't they? I'll keep you in the loop on how things turn out. Thanks again for your help! Really appreciate it! Cheers!

Hey guys I’m having problems with a 2009 Lexus is250 Evap leak and abs,traction light. I want to repair but need to know the exact problem

Hi Vince305, for the EVAP leak, start by checking the gas cap as it's the most common cause of an EVAP leak. Make sure it's not loose or damaged. If the gas cap seems fine, you might need to inspect the EVAP system hoses for any signs of wear or damage. As for the ABS and traction light, it could be due to a number of reasons such as a faulty wheel speed sensor, a damaged ABS ring, or even low brake fluid. I'd recommend getting a diagnostic scan to pinpoint the exact issue. Remember, these are safety-relevant issues, so if you're not comfortable doing these checks yourself, it's best to have a mechanic look at it. Please keep us updated on your progress. Do you have any other questions?