PowertrainP0170

Caution

Severity: Caution - get it checked when you can

Fuel Trim (Bank 1)

36 brands affected · Generic SAE J2012 description.

Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · Bank 1: the side of the engine containing cylinder 1 · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

This code is in the fuel, air and oxygen sensor range, which also includes coolant temperature faults.

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

Have it diagnosed if the engine runs badly or the code keeps returning. Because this range includes coolant temperature sensors, watch the temperature gauge: if it climbs into the red, or the engine overheats or stalls, 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 36

Brand	Code	Description	System
Ashok Leyland CV	P0170	Fuel Trim (Bank 1) SAE	Powertrain
BAIC Motor	P0170	Fuel Trim Bank 1 Brand	Powertrain
Mercedes-Benz	P0170	Fuel Trim (Bank 1) SAE	Powertrain
BMW	P0170	DME: Check, fuel supply system Brand	Powertrain
BYD	P0170	Fuel trim Brand	Powertrain
Chery	P0170	Fuel trim Brand	Powertrain
Daewoo	P0170	Mixture rich Brand	Powertrain
DFFS	P0170	Fuel trim Brand	Powertrain
DFFX	P0170	Fuel trim Brand	Powertrain
DFXK	P0170	Fuel Trim Bank 1 Brand	Powertrain
EOBD	P0170	Fuel trim bank 1 Brand	Powertrain
Geely	P0170	Fuel trim Brand	Powertrain
GM	P0170	Fuel Trim Bank 1 Brand	Powertrain
Great Wall	P0170	Fuel trim Brand	Powertrain
Hafei	P0170	Fuel trim Brand	Powertrain
Holden	P0170	Fuel Trim Bank 1 Brand	Powertrain
Honda	P0170	Fuel Trim (Bank 1) SAE	Powertrain
Hyundai	P0170	Fuel Trim (Bank 1) SAE	Powertrain
Isuzu	P0170	Fuel Trim (Bank 1) SAE	Powertrain
Land Rover	P0170	Fuel trim malfunction Brand	Powertrain
Maserati	P0170	Fuel Trim (Bank 1) SAE	Powertrain
Mitsubishi	P0170	Fuel trim Brand	Powertrain
Nissan	P0170	Fuel injection system Brand	Powertrain
Opel	P0170	Fuel Trim Bank 1 Brand	Powertrain
Peugeot	P0170	Fuel Trim (Bank 1) SAE	Powertrain
Proton	P0170	Fuel trim Brand	Powertrain
Saab	P0170	Fuel Trim Bank 1 Brand	Powertrain
MG (SAIC)	P0170	Fuel Trim Bank 1 Brand	Powertrain
Smart	P0170	Fuel Trim (Bank 1) SAE	Powertrain
Sprinter	P0170	Fuel Trim (Bank 1) SAE	Powertrain
Subaru	P0170	Fuel Trim Brand	Powertrain
Suzuki	P0170	Cylinder 4 Misfire Detected Brand	Powertrain
SWM Motor	P0170	Fuel trim (mixture ratio) defective Brand	Powertrain
Tata	P0170	Cam Control Brand	Powertrain
Toyota	P0170	Fuel injection system working abnormal or faulty Brand	Powertrain
Volkswagen	P0170	bank 1: malfunction 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 4

These 7-character codes are manufacturer-specific variants of P0170 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P017000	Air/fuel ratio control system error Brand	Powertrain
Mercedes-Benz	P017004	Die Gemischbildung (Zylinderreihe 1) hat Funktionsstörung. Es liegt ein interner Fehler vor. Brand	Powertrain
Mercedes-Benz	P017006	Die Gemischbildung (Zylinderreihe 1) hat Funktionsstörung.Es liegt ein Algorithmusfehler vor. Brand	Powertrain
Mercedes-Benz	P017061	Die Gemischbildung (Zylinderreihe 1) hat Funktionsstörung.Die Signalberechnung ist fehlerhaft. Brand	Powertrain

6Related codes

Browse Pxxx codes or P017xx codes.