How to fix P0171 nissan?
What does this mean? If the P0171 is combined with the P0174 code, it’s very likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. If the problem persists the front oxygen (O2) sensor may need to be replaced.
What does p0171 mean on a Nissan Leaf?
To keep your Nissan engine running properly, the powertrain control module (PCM) tries to compensate for the lean condition by injecting more fuel to the mixture in an effort to maintain the proper 14.7:1 ratio. When these adjustments become too large, code P0171 is triggered.
Can a p0171 code cause engine damage?
Vacuum leaks – PCV hose, vacuum hoses, intake manifold gasket. It is okay to drive your Nissan with P0171 for a short period of time, but driving with this code for an extended period of time can overheat the engine and cause internal engine damage.
What is the cause of Hyundai p0171 air leak?
It is important to complete the entire diagnostic process when diagnosing P0171. Many people will replace the air fuel sensor or O2 sensor as soon as they get a bad reading, but the root cause is often a dirty or faulty mass air flow sensor or vacuum leak, thus causing the O2 or A/F sensor to read differently to compensate.
What is the diagnostic code for a Nissan check engine light?
Follow scan tool manufacturer’s operating instructions to access the Diagnostic Trouble Codes (DTC’s). Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code listfor definitions on all other Nissan diagnostic trouble codes. Manufacturer Specific Codes P1105MAP/BARO Pressure Switch Solenoid Valve
What causes a Nissan Altima to have a p0171 code?
Altima P0171 Code Symptoms The P0171 code on a Nissan Altima will often be thrown if the fuel injection system is not operating properly. Typically the code will be triggered by a lean condition in the engine. There aren’t usually any drivability issues associated with P0171.
What to do if your check engine light code is p0171?
Reconnect any disconnected vacuum lines and replace any damaged vacuum lines that are leaking, then use FIXD to clear check engine light code P0171. If check engine light code P0171 is triggered again, check the rest of the vacuum lines for leaks and continue to the rest of the diagnostic process.
What does p0171 mean on Nissan freeze frame?
Reading and analyzing fuel trims and the freeze frame data is the key to properly diagnosing P0171. Use FIXD to scan your Nissan to verify P0171 is the only code present. If other codes are present, they must be addressed first.
What is the trouble code on my Nissan Altima?
One of the most common trouble codes with the Nissan Altima is the P0171 code. This code number references a number that is given to you when you plug your car into a OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common. P0171 is an OBDII trouble code.