maximiliandavis5
MR2 Engine Power Loss
Summary of the thread
A 2000 Toyota MR2 is experiencing significant power loss, poor engine response, stalling, increased fuel consumption, and unusual noises. The issues are suspected to be related to the boost pressure system, possibly involving the pressure sensor or turbo lag. A suggestion was made to check the wastegate valve, which was confirmed as the problem by a professional, leading to successful repair and restoration of the car's performance.
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4 comment(s)
maximiliandavis5 (community.author)
The wastegate valve, huh? I'm not super familiar with that part. Is it easy to check myself, or is it something I should probably take to a professional? And what exactly should I be looking for?
tildaschwarz11
Honestly, unless you're comfortable working on turbo systems, I'd recommend taking it to a shop. The wastegate is kinda buried, and if you don't know what you're doing, you could mess something else up. Best to let a pro diagnose it. I am 90% sure though that this is the problem.
maximiliandavis5 (community.author)
Thanks a lot for the advice! I took it to my local workshop, and you were spot on - it was indeed the wastegate valve. Repair cost me 860€, but at least the car's running like new again!
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TOYOTA
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MR2
tildaschwarz11
Sounds familiar! I had similar symptoms with my MR2. Whistling and hissing, loss of power, the whole shebang. Have you checked the wastegate valve? That's usually the culprit when you're hearing those kinds of noises and losing boost.