Have any of you had experience with Check Engine Code P0171? It indicates a lean mixture. My son's 2015 Honda Fit (84,000 miles) has this problem, and he can't get it inspected. The dealer cleaned the Mass Air Flow Sensor, but the light came back on. Then they did a $300 oil change and fuel system cleaning - light came back on. Now they want to replace the injectors for $1,700. They seem to be playing a guessing game that he's paying for.

I'm wondering if any of you found a solution the that error code.

 

I don't have direct experience, but just wanted to give you my thoughts...

I'm betting that the injectors are actually bad, but the question becomes why? Did they fail because they are part of the '15 and early '16 bad injectors or are they getting fouled by carbon?

If it were my car, I would scope the intake valves to see what you're dealing with. If they are clean, put new injectors in it and chalk it up to Honda's poor quality and even poorer handling of a faulty part. If they are carbon fouled, I would either trade it in as is or add an actual intake valve cleaning service (as in walnut shell blasting not some fuel system cleaner that will do NOTHING) to go along with a new set of injectors.

Just throwing that all out there because, if the problem is due to carbon fouling, he will have this same problem again.

 

Thanks. The dealer mentioned carbon fouling of the injectors. Maybe that was just an excuse to do the cleaning. The goal now is to have it pass inspection.

Yes, the dealer admitted that the 2015 injectors have been a problem. I guess charging $250 for each injector means they're really good quality.

Two problems with the dealer: probably dishonest; probably incompetent. I'm talking about any dealer anywhere. They've had three chances to fix the Ck Eng light, and the cost keeps rising.

 

In the dealers defense, they are working from cheap to expensive.

 

I'm no expert, but the injectors are known to clog and/or fail on the 15's and early 16's. Sounds like that's what happening.

My 15 started experiencing these problems at 24,000 miles. I was also told I needed new injectors and a new fuel rail.

 

I'd rather they worked scientifically. The next step is $1,700. And if that doesn't work?

 

Ever see Office Space? If so, remember the copy machine?

 

No, I haven't seen that, but I found it with Google. Yes, printers deserve a special place in hell.