Your browser (Internet Explorer 7 or lower) is out of date. It has known security flaws and may not display all features of this and other websites. Learn how to update your browser.

X

OBDExplorerResult

Vehicle Manufacturer: Citroen (PSA Peugeot Citroen)
Established: 1/1/1919
Country of Origin: France



Manufacturer Tech Info website:
Technical Information Website Unavailable


EU Specific Manufacturer Tech Info website:
EU Specific Technical Information Website Unavailable


View Manufacturer OBD/Error Code List

Auto Diagnostics

This is a free service, if you find it useful then to keep it free please click the Facebook like button below:

Generic OBD Error Code Details for P0171

System Too Lean

What does this mean?

OBD Code P0171refers to
Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. Note: This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time.

Symptoms

Possible sumptoms of OBD code P0171
You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.

Causes

Possible causes of OBD code P0171
A code P0171 may mean that one or more of the following has happened: •The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. •There could be a vacuum leak downstream of the MAF sensor.

Possible Solutions

Possible solutions include: •In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling •Inspect all vacuum and PCV hoses, replace if necessary •Check for a dirty fuel filter and proper fuel pressure

This is a free service, if you find it useful then to keep it free please click the Facebook like button below: