Codes P0236 and P0237?

ERICSSON

MEMBER
2015 CHEVROLET MALIBU
2.0L
4 CYL
2WD
AUTOMATIC
80,000 MILES

Good evening, please help! I would like to know more about these two codes that are running on my vehicle, the codes are P0236 and P0237 if it's a sensor where should it be located.

Tuesday, June 13th, 2023 AT 7:58 PM

1 Reply

BORIS K

MECHANIC
799 POSTS

Hello,

Both of these codes points towards a possible issue with the boost pressure sensor, connections/wiring or a possible boost leak.

The boost pressure sensor is located at the front of the engine, on the boost pipe just ahead of the transmission.

See image below.

If possible, use a suitable diagnostic tool and compare live data readings for the boost pressure, Barometric pressure and MAP sensors.

With key on engine off they should all read around 1000 mbar (atmospheric pressure) with a maximum deviation of less than 100 mbar from each other.

This can give you an idea if there is a problem with the boost pressure sensor or another pressure sensor.

Please let us know if you need any other information.

Cheers, Boris

Image (Click to make bigger)