StefBau19
Seeking Solutions for Reduced Performance and Poor Fuel Efficiency in a 2005 Lexus GS Hybrid
Summary of the thread
The conversation centers around a 2005 Lexus GS Hybrid experiencing reduced performance, poor fuel efficiency, and a check engine light. The initial suspicion is a problem with the smooth running control. A suggested solution involves inspecting and cleaning the air intake system, throttle body, and mass air flow sensor, as these components can affect engine performance if dirty or faulty. The discussion emphasizes the importance of these checks to potentially resolve the issues and restore the vehicle's performance.
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4 comment(s)
StefBau19 (community.author)
Hey, thanks for the response! Nah, no mods on my GS and it's the 450h version. I've put roughly 143917 KM on it - might be those old bones starting to creak, haha! Interesting point about the air intake system; seems like a thorough cleanup might be in order. Thanks again for the tip. I'll make sure to let you know how it goes!
BjFisch
Hey back! No problem, happy to share what I've been through. Yeah, with that kind of mileage, a good clean-up of the air intake system, and maybe even the throttle body, could definitely do some good. Also, be sure to check if the air filter needs replacing. In my case, the mechanic also suggested checking the mass air flow sensor. If it's faulty or dirty it could lead to incorrect data being sent to the engine control unit which might cause these issues too. A quick clean or a replacement, if needed, might solve the problem. Anyway, fingers crossed! I know the hassle of dealing with car issues. Hope it all works out for you! Let us know what you find out.
StefBau19 (community.author)
Cheers for that follow-up! I'll definitely add in the throttle body and, mass air sensor to the items to inspect and possibly clean or replace as needed. Wish me luck, I'll be popping the hood this weekend! Will definitely keep you posted on how it all pans out. Here's hoping I can restore that smooth Lexus ride!
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LEXUS
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GS
BjFisch
Hey there! Not an expert but I've got some experience. Had a similar issue with my 2007 Lexus LS series. Gave me the same set of troubles. As you've guessed, the problem was with the air intake system - mine had heavily contaminated intake channels. Took it to my local garage and after a good cleaning, she was purring like a kitten again. The bill came around 425 Euro, so wasn't exactly cheap. But the difference in performance? Night and day. Worth checking out I'd say. By the way, any mods on your '05 GS? Also, is it the 450h or the 460? That might change things a bit. Little more info could help narrow things down. Good luck!