How far can I drive my car with error code p0171i haven’t noticed any change in my fuel or exhaust

Question

I haven’t noticed a change in my gas mileage or exhaust and I don’t have any acceleration issues thus far.

Answer 1

Hi there

This code indicates a lean fuel mixture on bank 1 of the engine. Possible causes are intake vacuum leak, low fuel pressure or a faulty O2 sensor. You can continue to drive it with this code, eventually you will have to determine the cause.

P0171 MERCURY - Fuel Injection System Too Lean Bank 1

Read more: https://www.autocodes.com/p0171_mercury.html