P0173Fuel Trim Malfunction (Bank 2)
Iată ce înseamnă codul de eroare P0173, de ce apare și ce ai de făcut.
Sistem: Fuel & air metering
De obicei se poate circula în siguranță pe distanțe scurte, dar verifică problema cât mai curând.
Ce înseamnă P0173
The engine computer adjusts how much fuel it adds based on readings from the oxygen sensors. This code means the correction needed on bank 2 (the engine side that does not contain cylinder #1) has gone too far in one direction. In practice the mixture is too rich or too lean and the computer can no longer compensate within its normal range.
Simptome frecvente
- Check engine light on
- Rough or unstable idle
- Reduced fuel economy
- Hesitation or stumble during acceleration
- Possible hard starting
Cauze frecvente
Enumerate de la cea mai frecventă la cea mai rară.
- 1Vacuum or intake air leak (unmetered air)
- 2Failing or dirty mass airflow (MAF) sensor
- 3Faulty oxygen sensor on bank 2
- 4Fuel delivery problem (weak fuel pump, low pressure, clogged or leaking injectors)
- 5Clogged or dirty fuel filter
- 6Exhaust leak near the oxygen sensor
- 7Vacuum leak from PCV system or hoses
Ce să faci
Have the live fuel-trim data read to see whether the system is running rich or lean, which narrows the cause quickly. Check for vacuum leaks and inspect the MAF sensor and fuel pressure before replacing parts. It is generally fine to keep driving short trips, but fix it soon to avoid wasted fuel and possible catalytic converter wear.
Cumperi o mașină care afișează P0173?
Un cod de eroare memorat poate indica o problemă ascunsă. Decodează VIN-ul ca să vezi detaliile mașinii și rechemările oficiale de siguranță — gratuit.
Întrebări frecvente
Ce înseamnă codul P0173?
The engine computer adjusts how much fuel it adds based on readings from the oxygen sensors. This code means the correction needed on bank 2 (the engine side that does not contain cylinder #1) has gone too far in one direction. In practice the mixture is too rich or too lean and the computer can no longer compensate within its normal range.
Ce cauzează codul P0173?
Cele mai frecvente cauze sunt: Vacuum or intake air leak (unmetered air), Failing or dirty mass airflow (MAF) sensor, Faulty oxygen sensor on bank 2, Fuel delivery problem (weak fuel pump, low pressure, clogged or leaking injectors), Clogged or dirty fuel filter, Exhaust leak near the oxygen sensor, Vacuum leak from PCV system or hoses.
Este sigur să conduci cu P0173?
De obicei se poate circula în siguranță pe distanțe scurte, dar verifică problema cât mai curând.
Cum repari codul P0173?
Have the live fuel-trim data read to see whether the system is running rich or lean, which narrows the cause quickly. Check for vacuum leaks and inspect the MAF sensor and fuel pressure before replacing parts. It is generally fine to keep driving short trips, but fix it soon to avoid wasted fuel and possible catalytic converter wear.
Acestea sunt informații generale care te ajută să înțelegi codul P0173 și nu înlocuiesc un diagnostic făcut de un mecanic calificat. Confirmă întotdeauna cauza înainte de a înlocui piese.
Definițiile codurilor urmează lista standardizată OBD-II (SAE J2012). CarVinVin este independent și nu este afiliat niciunui producător.