PowertrainP0238

Caution

Severity: Caution - get it checked when you can

Turbocharger Boost Sensor A Circuit High

39 brands affected · Generic SAE J2012 description.

Key terms: Turbocharger: an exhaust-driven fan that pushes extra air into the engine · Boost pressure: extra air pressure made by a turbo or supercharger · Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

This code is in the powertrain range that covers fuel and air metering, over-temperature, overspeed and transmission over-temperature conditions.

2Common causes

Dirty or faulty mass air flow sensor
Vacuum or intake air leak
Weak fuel pump or clogged fuel filter
Faulty fuel injector
Faulty oxygen sensor
Wiring or connector fault

3Can I drive?

Caution · drive with care

Do not assume this code is safe to ignore: some codes in this range affect engine safety systems. Have it diagnosed; if the engine is overheating, a red warning light is on, or the engine loses power or cuts out, stop safely and get professional help.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 39

Brand	Code	Description	System
Ashok Leyland CV	P0238	System Purge (First Filling) Brand	Powertrain
BAIC Motor	P0238	BSTD Short High Brand	Powertrain
Mercedes-Benz	P0238	Turbocharger Boost Sensor A Circuit High SAE	Powertrain
BMW	P0238	Turbo/Super Charger Boost Sensor A Circuit High Brand	Powertrain
BYD	P0238	Boost pressure sensor circuit high Brand	Powertrain
Chery	P0238	Error Path For Boost Pressure Sensor Brand	Powertrain
Daewoo	P0238	Boost Pressure Sensor Circuit High Input Brand	Powertrain
DFFS	P0238	Boost pressure sensor failure Brand	Powertrain
DFFX	P0238	Boost pressure sensor circuit voltage is high Brand	Powertrain
DFXK	P0238	Boost pressure sensor circuit voltage high Brand	Powertrain
EOBD	P0238	Krug senzora tlaka 'A' turbopunjača/punjača visok Brand	Powertrain
Ford	P0238	if is still present suspect the MAP(Manifold absolute pressure sensor) sensor Brand	Powertrain
Geely	P0238	Supercharge Pressure Sensor Line High Voltage Brand	Powertrain
GM	P0238	Turbocharger boost sensor circuit high voltage Brand	Powertrain
Great Wall	P0238	Error path for boost pressure sensor Brand	Powertrain
Hafei	P0238	Turbocharger/Supercharger Boost Sensor A Circuit High Brand	Powertrain
Holden	P0238	Turbocharger Boost Sensor Circuit Brand	Powertrain
Honda	P0238	Turbocharger Boost Sensor A Circuit High SAE	Powertrain
Hyundai	P0238	Turbocharger Boost Sensor A Circuit High SAE	Powertrain
Isuzu	P0238	Turbocharger Boost Sensor A Circuit High SAE	Powertrain
Land Rover	P0238	Turbocharger Boost Sensor A Circuit High SAE	Powertrain
Mahindra	P0238	Turbocharger Boost Sensor A Circuit High SAE	Powertrain
Maserati	P0238	Turbocharger/supercharger boost pressure sensor circuit high Brand	Powertrain
Mazda	P0238	if is still present suspect the MAP(Manifold absolute pressure sensor) sensor Brand	Powertrain
Mitsubishi	P0238	Boost pressure sensor high Brand	Powertrain
Nissan	P0238	Turbocharger Boost Sensor A Circuit High SAE	Powertrain
Opel	P0238	Turbocharger boost sensor circuit high voltage Brand	Powertrain
Peugeot	P0238	Turbocharger Boost Sensor A Circuit High SAE	Powertrain
Porsche	P0238	Drucksensor Ladedruck Brand	Powertrain
Proton	P0238	Boost pressure sensor high Brand	Powertrain
Saab	P0238	Turbocharger boost sensor circuit high voltage Brand	Powertrain
MG (SAIC)	P0238	Brake Booster Pump Circuit Open Brand	Powertrain
Smart	P0238	Turbocharger Boost Sensor A Circuit High SAE	Powertrain
Subaru	P0238	Turbocharger Boost Sensor A Circuit High SAE	Powertrain
Suzuki	P0238	Turbocharger / Supercharger Boost Sensor 'A' Circuit High Brand	Powertrain
SWM Motor	P0238	Boost pressure sensor circuit high voltage Brand	Powertrain
Tata	P0238	Too High Turbo Pressure Brand	Powertrain
Toyota	P0238	Boost pressure sensor circuit high voltage Brand	Powertrain
Volkswagen	P0238	Manifold pressure / boost sensor (G31): signal too high Brand	Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 2

These 7-character codes are manufacturer-specific variants of P0238 and may be reported by some scan tools.

Brand	Code	Description	System
Hyundai	P023800	is set when the voltage above 4880mV - maximum output voltage of BPS - is detected for more than 1.0 sec. This code is due to short to battery in BPS signal circuit or open in ground circuit Brand	Powertrain
SsangYong	P023800	Intake pressure sensor (temperature - manifold absolute pressure) circuit short to battery (+) Brand	Powertrain

6Related codes

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