Reduced engine power

2006 CHEVROLET HHR
206,000 MILES • 4 CYL • AUTOMATIC
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SANDRAG
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About a month ago the reduced engine power light came on and I couldn't drive over 15 mph. Before that happened my car was cutting back on speed and cutting off when I would stop at a light or slowed down almost stopping. I know that I need 2 sensors but the guy at AutoZone said that those sensors wouldn't make the engine reduce power. I'm a woman so I don't know much about cars so I am trying to find some advice so that when I take it in to be fixed I won't feel like I'm being taken advantage of by someone telling me that I need more done than I actually do. My car has also had a lot of modifications done by the previous owner and I think that it was used to race at some point. Any advice will surely be helpful and appreciated. Thank you.
Nov 19, 2019 at 8:31 PM
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ASEMASTER6371
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Good morning,

Did the parts store check for any codes? If they did, can you give me the code numbers? You have a throttle body and a fuel pedal that are a big part of the system that gives you this message.

https://www.2carpros.com/articles/reduced-power-limp-mode

Roy
Nov 20, 2019 at 3:13 AM
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SANDRAG
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Hi Roy. Yes, but this was way before the reduced engine power after that I couldn't drive the car. I don't have the codes but at the Chevrolet dealership this is what I was given. Mass air flow sensor, r&r OEM (J5670). I hope that this helps.
Nov 20, 2019 at 3:48 AM
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ASEMASTER6371
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No, the mass airflow has nothing to do with reduced power.

Did they give you any other information?

Roy
Nov 20, 2019 at 3:56 AM
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ASEMASTER6371
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I got an email with a response but nothing came up.

Did you respond?

Roy
Nov 20, 2019 at 9:52 AM