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#2017 chevy trax p0171 code#

Keep in mind this is an intermediate-level diagnosis and repair and not recommended for beginners.

#2017 chevy trax p0171 code#

If you’d like to try to fix trouble code P0171 at home without throwing money at parts, you’ll want to follow the steps below for proper diagnosis.

Air fuel sensor or oxygen sensor $200-$300.

Exhaust repair $100-$200 (if welded to repair).

For each possible repair, the estimated cost of repair includes the cost of the relevant parts and the cost of labor required to make the repair. When it comes to making repairs associated with the Chevrolet P0171 code, one or more of the below repairs may be needed to solve the underlying issue causing bank 1 to run lean. From there, a shop will be able to give you an accurate estimate for repairs to fix your P0171 code. Many, if not most, shops will apply this diagnosis fee to any required repairs if you have them perform the repairs for you. Depending on the shop’s labor rate, this typically costs somewhere between $75-$150. If you take your car to a shop for diagnosis, most shops will start with an hour of “diag time” (the time spent in labor diagnosing your specific issue). These shops can not only help you figure out what’s going wrong before you waste time and money on the wrong parts, but they also offer a minimum 12-month, 12,000-mile warranty and stand behind all their estimates with guaranteed fair pricing. If your engine is running lean Bank 1 and you’re not comfortable diagnosing this issue at home, we recommend finding a RepairPal-certified shop to pinpoint the problem and give an accurate estimate for repairs. > Click here to get FIXD for $19.99 for a limited time! Using the live data function of the FIXD sensor and app allows you to read and analyze fuel trims to properly diagnose a P0171 Chevy code.

With a Chevrolet P0171 code, the first step is to get it properly diagnosed to figure out what is causing the engine to run lean in Bank 1. Commonly associated with error code: P0174.Vacuum leaks – PCV hoses, vacuum hoses, intake manifold gasket.If this causes the Bank 1 system to run lean, the P0171 code is triggered.

With a large enough vacuum leak, the engine may not be capable of providing enough fuel to maintain the proper ratio. To keep the 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. The lean condition can be caused by a vacuum leak, which introduces more air into the air-fuel mixture, or by a weak fuel system, which does not input enough fuel into the air-fuel mixture. Too much fuel and/or too little air results in the engine running rich setting a P0172 trouble code, while too little fuel and/or too much air results in the engine running lean resulting in a check engine light for the P0171 code. For our purposes, we’ll talk about just 2 codes: P0171 and P0172 – which are triggered by malfunctions in engine bank 1. If this ratio is off, it can make your engine throw off a few different codes. One of the top 5 most common causes of a check engine light in 31 out of the 59 Chevrolet models we have data on.Ĭombustion engines run most efficiently when they maintain an air-fuel mixture ratio of 14.7 parts air to 1 part fuel.Use the FIXD Sensor and app to diagnose and fix P0171 yourself, see the most likely fix and cost for your Chevrolet, access our Mechanic Hotline, and more. Many people will replace the air-fuel sensor or oxygen sensor as soon as they get a bad reading, but the root cause can also be a dirty or faulty mass airflow sensor or vacuum leak, thus causing the O2 or MAF sensor to read differently to compensate. Diagnosis: It is important to complete the entire diagnostic process when diagnosing the Chevrolet P0171 code.Repair Urgency: Get this trouble code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters.Issue Severity: MODERATE– Extended driving with this problem code can cause internal engine damage.P0171 definition : Bank 1 has too much air or not enough fuel – This will typically trigger your Check Engine Light.