The car goes into limp mode with the warning. Dealer replaced the Throttle Body. Got it back today and it did the same thing. Electronic or mechanical problem? Air injection relay? Any ideas?
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2011 Volvo C70 Question: My car is displaying "reduced engine performance" fairly frequently.
Answer #1Bret Bodas from RepairPal Test Shop, September 14, 2012, 15:25Master
It's really impossible to know what is causing this without performing a few dianstic procedures...like reading the codes, checking all the intake hoses etc. If the dealer just worked on it then I would return as it should be a warrantied repair.