Is it OK to drive with P0171 code?

Is it OK to drive with P0171 code?

It is okay to drive a vehicle 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.

Can bad spark plugs cause P0171?

Can bad spark plugs cause p0171? – Quora. 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).

Can a dirty air filter cause a lean code?

The Mass Air Flow sensor is behind the air filter, so if the filter were choked off, the MAF sensor would be reading less air, and the computer would use less fuel to compensate. This is called “unmetered air” and is the biggest cause of a lean running engine on a modern fuel injected car.

What does it mean when bank 1 system too lean?

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.

What causes both banks to run lean?

Lean conditions are often caused by air entering the system somewhere where it cannot be monitored. Two main areas for this would be the intake system, usually after the MAF sensor, or a vacuum leak somewhere in the intake. One is a vacuum leak due to a failed intake manifold or throttle body gasket.

Can a bad O2 sensor cause a lean condition?

(O2) Sensor Failure, Can Cause Catalytic Converter, Meltdown So, an oxygen sensor failure can lead to incorrect readings of exhaust gasses. As a result, the faulty sensor can cause, a too rich or too lean condition.

What are signs of a vacuum leak?

Symptoms of a vacuum leak include the Check Engine light, rough idle, stalling and a hissing sound coming from the engine bay. The engine may run well at higher RPMs, but surges, runs rough and struggles to maintain stable RPMs at idle. Often, the engine stalls when stopping.

Is it safe to drive with vacuum leak?

Driving with a vacuum leak should not be done because it causes a loss of power to your engine. This can be unsafe while driving down the road, especially if the leak increases as you are driving.

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