P2227 Barometric Pressure (BARO) Sensor Circuit Range/Performance Problem - AcuraZine Community

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Old 09-26-2010, 9:51 PM   #1
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P2227 Barometric Pressure (BARO) Sensor Circuit Range/Performance Problem

everytime i tried to floor the gas pedal the rpm stuck at around 4-5k rpm with extremely slow acceleration and then the vsa light came on. I got a p2227 baro sensor problem. Can some one please help me with this?
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Old 09-26-2010, 10:08 PM   #2
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If the baro sensor is the same as the MAP sensor, the car is probably going into limp mode. It uses this sensor for air/fuel calculations. This sensor is a major player in calculating airflow and load on the engine so without it the ECU goes into limp mode. I would check the connection at the sensor and if that's ok and since they're cheap I would replace it. There is a more detailed diagnosis you can get into via the repair manual.
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Old 09-26-2010, 10:24 PM   #3
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hum? i thought the baro sensor was inside the pcm?
well either way check the intake system( pipes, clogged airfilter etc).
i discovered a shopping bag infront of the airfilter causing the same code
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Old 07-01-2011, 2:18 PM   #4
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going to bump this thread because i just got the same problem.

the check engine light just came on a couple days ago and i got a reading from autozone saying it's a P2227 error. i checked the air filter and nothing is blocking it and nothing looks out of the ordinary under the hood.

i tested revving the engine and it was slow to accelerate and stopped around 5k. before it jumps to 5k it felt like there was a light jerk. the car just came out of the dealer with a transmission swap too, but i don't think the two are related after reading about this p2227 error.

can someone define what "limp mode" is? i'm just trying to get a better idea if this is something i can fix on my own or should i just bring it into the dealer. and if i do bring it in, i want to have a better understanding of what they need to fix.

thanks!
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Old 07-01-2011, 9:32 PM   #5
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You can't test it by just sitting and revving the engine. In that case, even with no faults, the engine won't rev over 5k rpm.

"Limp Mode" is a protective mode the car goes into for certain faults. The idea is to give you just enough to get to a repair facility.

In limp mode rpm is limited; there may be a few other things as well, such as no manual/paddle shifing, etc, but I'm not sure what all of the limited systems are.
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Old 07-12-2011, 10:56 AM   #6
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Weird, but a few days after my post, the light went off by itself and didn't come back on since..
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Old 07-12-2011, 10:56 AM
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