I am getting the P0171 code on a 2008 Honda Civic LX

Question

My car is up for inspection and I need to fix this code ASAP. I have been to Honda several times and they have told me something different each time. They said o2 sensor, which I had already known because I have a code reader, so I had already replaced both of the o2 sensors just in case. So Honda told me one of them was bad so again, purchased another o2 sensor. The car had a cold air intake installed in it a few months ago, and shortly after, the engine block was replaced and a few other engine components under warranty. I really don't knowwhat else to do because I've done everything Honda has told me to do and the light keeps coming on.

Answer 1

When it comes to Honda, take a look at the sparkplugs and what condition they are, the sparkplug has to be properly torque down and not only that you have to use the required sparkplugs . If you meet those requirement a valve adjustment is gong to be the fix here