What does System Too Lean Bank 1 mean?
What does System Too Lean Bank 1 mean?
The OBDII trouble code P0171 – System Too Lean (Bank 1) means that the engine air-fuel mixture is too lean, or there is too much air and too little fuel. Driving a car with the code P0171 can cause more damage to the engine over time, as when the engine runs lean, the combustion temperature is higher.
Where is the fuel filter located on a 2000 Nissan Sentra?
The 2000 Nissan Sentra fuel filter is located on the fuel pump assembly in the tank.
How much does it cost to fix P0171?
What is the cost to resolve a P0171 code? This code will require a diagnostic check, which will run about $100 depending on the time it takes to find the issue.
Can bad spark plugs cause P0171?
Not likely. A P0171 ( too lean, Bank 1 ) code is most often caused by a vacuum leak downstream from the MAF sensor or a malfunctioning MAF sensor. Bad spark plugs could actually cause the opposite code ( too rich, bank 1).
What are the signs your fuel pump is going out?
Seven Signs Your Fuel Pump Is Going Out
- Sputtering Engine. Your fuel pump is telling you something if your engine starts to sputter once you’ve hit the top speed on the highway.
- Overheating Engine.
- Low Fuel Pressure.
- Power Loss.
- Surging Engine.
- Gas Mileage Decrease.
- Dead Engine.
How much is a P0171 sensor?
A broken vacuum hose sucking in air can be around $50, or a clogged fuel filter for $100. On the other hand, an oxygen sensor or mass air flow sensor can bring a bill of $400 to $500 dollars. A bad fuel pump can be really expensive costing around $600 to $800.
What causes the p0171 trouble code on a Nissan Sentra?
There are many things that can cause the P0171 trouble code on the Nissan Sentra. Here are the most common ones. Vacuum Leaks – With the Nissan Sentra, one of the most common cause for the P0171 code to show is a vacuum leak. Take a look around and see if you can find the vacuum leak.
How much does it cost to diagnose a Nissan p0171 code?
If the problem persists the front oxygen (O2) sensor may need to be replaced. The cost to diagnose the P0171 NISSAN code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
What causes the p0171 code on a diesel engine?
When there are more than 14.7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P0171 is triggered. 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.
What to do if your Nissan Frontier has a p0171 O2 sensor?
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. The cost to diagnose the P0171 NISSAN code is 1.0 hour of labor.
