PowertrainP0234

Caution

Severity: Caution - get it checked when you can

Turbocharger/Supercharger Overboost Condition

41 brands affected · Generic SAE J2012 description.

Key terms: Turbocharger: an exhaust-driven fan that pushes extra air into the engine · Supercharger: an engine-driven fan that pushes extra air into the engine · Boost pressure: extra air pressure made by a turbo or supercharger · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

The turbocharger or supercharger is producing more boost pressure than the engine computer allows.

2Common causes

Sticking or faulty wastegate or boost control valve
Faulty boost pressure sensor
Damaged vacuum or boost hose
Turbocharger fault
Damaged wiring or connector

3Can I drive?

Caution · drive with care

Drive gently and avoid hard acceleration. Repeated overboost can damage the engine; have it checked soon.

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 41

Brand	Code	Description	System
Ashok Leyland CV	P0234	ECU Date Of Last Programming Brand	Powertrain
BAIC Motor	P0234	Overboost Brand	Powertrain
Mercedes-Benz	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
BMW	P0234	Turbo/Super Charger Overboost Condition Brand	Powertrain
BYD	P0234	Turbochager overboost Brand	Powertrain
Chery	P0234	Turbochager overboost Brand	Powertrain
Chrysler	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
Daewoo	P0234	Boost Pressure High Pressure Brand	Powertrain
Daihatsu	P0234	VN turbo open side abnormal Brand	Powertrain
DFFS	P0234	Boost pressure too high Brand	Powertrain
DFFX	P0234	Overpressure Brand	Powertrain
DFXK	P0234	Turbo boost excessive Brand	Powertrain
EOBD	P0234	Pretjerani tlak punjača 'A' Brand	Powertrain
Ford	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
Geely	P0234	Turbo Boost Excessive Brand	Powertrain
GM	P0234	Suralim. excessive moteur TC Brand	Powertrain
Great Wall	P0234	Turbochager overboost Brand	Powertrain
Hafei	P0234	Turbochager overboost Brand	Powertrain
Holden	P0234	Engine Overboost Brand	Powertrain
Honda	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
Hyundai	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
Isuzu	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
Land Rover	P0234	turbocharger overboost) calibration reflash Brand	Powertrain
Mahindra	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
Maserati	P0234	Turbocharger Overboost Condition Brand	Powertrain
Mazda	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
Mitsubishi	P0234	Waste gate system Brand	Powertrain
Nissan	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
Opel	P0234	Suralim. excessive moteur TC Brand	Powertrain
Perodua	P0234	VN turbo open side abnormal Brand	Powertrain
Peugeot	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
Porsche	P0234	Ladedruckkennlinie Brand	Powertrain
Proton	P0234	Waste gate system Brand	Powertrain
Saab	P0234	Zu hoher Ladedruck Motor Brand	Powertrain
MG (SAIC)	P0234	Turbocharger Overboost Condition Brand	Powertrain
Subaru	P0234	Turbocharger/Supercharger Overboost Condition SAE	Powertrain
Suzuki	P0234	Turbocharger / Supercharger 'A' Overboost Condition Brand	Powertrain
SWM Motor	P0234	Turbo overboost Brand	Powertrain
Tata	P0234	Engine Overboost Condition Brand	Powertrain
Toyota	P0234	Turbocharger overpressure Brand	Powertrain
Volkswagen	P0234	Boost Pressure Control (N75) part number 06F-906-283-D can cause P2263 and/or 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 5

These 7-character codes are manufacturer-specific variants of P0234 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P023400	Der Ladedruck des Abgasturboladers 1 weicht im Ladebetrieb vom Sollwert ab. Brand	Powertrain
Hyundai	P023400	No description available	Powertrain
SsangYong	P023400	Turbocharger Overboost Condition Brand	Powertrain
Volkswagen	P023400	Turbo/Super Charger Overboost Condition Brand	Powertrain
Mercedes-Benz	P023409	The boost pressure of turbocharger 1 is too high. There is a component fault. Brand	Powertrain

6Related codes

Browse Pxxx codes or P023xx codes.