Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
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Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0170FUEL TRIM - BANK 1
P0170FUEL TRIM BANK 1
Manufacturer communications
13Original wording in English
FORD
Some 2019 F-Super Duty pickup vehicles equipped with a 6.7L engine built on or before 31-Oct-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with only diagnostic trouble code (DTC) P0170 stored in the powertrain control module (PCM). This may be due to various strategies within the PCM software. To correct the c…
FORD
This message is superseding TSB 19-2271 to update the Issue, Action and Service Procedure. Some 2017-2018 F-Super Duty and 2019 F-Super Duty F-450/F-550 Chassis Cab only vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DT…
FORD
Some 2017-2019 F-Super Duty vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2074, P0401, P0402 and/or P0170. This may be due to various strategies within the powertrain control module (PCM) software. To resolve th…
FORD
Some 2017-2019 F-Super Duty vehicles equipped with a 6.7L engine built on or before 9-Jan-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2074, P0401, P0402 and/or P0170. This may be due to various strategies within the powertrain control module (PCM) software. To resolve th…
Check vehicle applicability
48A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | F-250 SD ↗ | 2019 |
| Ford | F-250 SD ↗ | 2018 |
| Ford | F-250 SD ↗ | 2017 |
| Ford | F-250 SD ↗ | 2016 |
| Ford | F-250 SD ↗ | 2015 |
| Ford | F-350 SD ↗ | 2019 |
| Ford | F-350 SD ↗ | 2018 |
| Ford | F-350 SD ↗ | 2017 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Fuel Trim Malfunction (Bank 1)
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.