07 with a check engine light??

[wadecool]

My 07 E has 93,000 miles and I've been getting a check engine light that has been staying on? Does anyone know what this means or how I can check it without going to the dealer? Thanks in advance.

[BobTheCarGuy]

Holy smoke, dude.

Thats like 260 miles/day. Do you live in that thing?

[Brawsie]

Is it running ok?

I've heard that autozone will read codes for free. Never tried myself tho.

Good luck, mabe it's just a leaky gas cap or something.

[wadecool]

Bobthecarguy, yes I pretty much live in my E. Its a company car and I drive the entire state of KY, about 6000 or 7000 miles a month.
I had the code read at Autozone & it came up P0171. They said its probably an oxygen sensor near the catalytic converter. I read on here to put some fuel additive in a near empty tank & fill with premium fuel. What do you guys think? Is this a big deal or just an aggravation?

[lizzurd]

Originally Posted by wadecool

Bobthecarguy, yes I pretty much live in my E. Its a company car and I drive the entire state of KY, about 6000 or 7000 miles a month.
I had the code read at Autozone & it came up P0171. They said its probably an oxygen sensor near the catalytic converter. I read on here to put some fuel additive in a near empty tank & fill with premium fuel. What do you guys think? Is this a big deal or just an aggravation?

Im just looked up p0171 in the manual and it indicates fuel system too lean.

[Twilightzero]

Lean indicates either too little gasoline, or too much air (oxygen). A restricted air filter would diminish the volume of air that could enter the intake, but would not cause the system to run lean (too much air).

The system lean DTC that the OP is getting happens when the A/F sensor feedback to the PCM indicates that there is too much oxygen remaining in the exhaust after combustion has occured, and the PCM has reached it's limit of authority to increase fuel injector duration to compensate. ie: the PCM has added the limit of gasoline it's allowed to, and the A/F sensor still shows that there is too much oxygen in the exhaust.

Might want to have that checked out by an actual mechanic/dealer since it could be a fuel quality issue, fuel pressure issue, A/F sensor issue, vacuum leak, etc. rather than throwing parts/additives at it.

Just my $.02 :D

[boxingbarry]

Originally Posted by lizzurd

Im just looked up p0171 in the manual and it indicates fuel system too lean.

Valve Adjustment !!!!
- all highway driving - tons of miles in a short time -
That is the FIRST thing I would check . :)
P.S.
Fuel additives may not be too good an idea - Honda has bulletins advising agaist additives for ANY fluids in their vehicles. I'm certain most auto manufacturers support this idea with their products as well.
Keep us posted.
Barry B

[Tunnelmotor99]

Take it to a local mechanic or a honda dealer so they can diagnose it properly. It is most likely a dirty MAF sensor or possibly an O2 sensor starting to give up. It could also be a dirty or clogged fuel filter, it's hard to say. If you keep driving it your gas mileage will most certainly suffer and other engine problems can develop.

[bannerguy]

I'm not a mechanic by any means, but I've had this happen on a couple vehicles (not the E though) and it was simply a lose gas cap - might try checking the gas cap.

Hope this helps!

[Snarf77]

Not trying to steal the thread..just yesterday my E popped the following code:

P0141: Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

Seems like my Secondary O2 sensor needs replacement, but I wanted to confirm? There are so many O2 Sensor threads, I didn't know which one to post in!

Thanks in advance.