Dragon smoke 02 sensor codes

[snowtrooper1966]

Greetings!
Dragon has been blowing a bit of white smoke on cold startup, and threw codes:
P0137 (bank 1 sensor 2)
P0157 (bank 2 sensor 2)
Guy thought is was the 02 sensors going bad as they were not giving a very high reading, .678, .569, .696, .726 for the 4 senors. He indicated they usually have a higher reading than that. Also though it could be poor quality gas, which I shamefully have been using....
He cleared the system. I told him I was gonna check around here and see what you guys might have to say.

I am scheduled to drive to Irvine tomorrow (600 mile round trip) and was hoping I am not gonna slay the Dragon.

Thanks in advance for your help.
Best,

[tom4bren]

The only suggestion I can make is to run some injector cleaner on the next fill up - replace the air filter & maybe clean the MAS. Quick, easy, cheap start to a 600 mile trip.

[nfpgasmask]

That's a good idea, Tom. I was gonna say, pour a pint of Sea Foam in yer tank and run that through. You might also change your fuel filter ($12 part, easy to swap). Other than that, do all the little stuff you can, oil, oil filter, air filter, etc and see if that makes a difference. How many miles you got?

Is it still throwing codes? Are you getting a check engine light?

Bart

[snowtrooper1966]

Thanks guys!
I am @ 61K
The check engine light just came on this am. I have only driven 6 miles since it was cleared.
What is the MAS?
Not too sure if I can get seafoam her in my little podunk town, but the oil change and air filter is a go for pre trip maintenance.
Best,

[nfpgasmask]

I am 99% sure you can find SeaFoam at Walmart, Kragen and Autozone, if you have one of those near by. And SeaFoam is just one product, I'm sure you can find some fuel cleaner at any auto parts shop.

The MAF is the Mass Air Flow Sensor. I don't know where it is or what it looks like, but someone on here should. What maintenance has been done to your VX since you bought it? Any records come with it?

Bart

[rowhard]

You know, you just got to love digital camera's and computers and stuff. Anyway, the mass air sensor is the thing next to the air filter. If you have the stock air filter box, it will be the first thing with a electrical connector. Think someone said spray it with some electrical cleaner spray or brake parts cleaner spray or something after removing it then spray with air from canned air or compressor. But wait for some of the pro's to insert their two cents before you do. You will have a good answer before sundown. Well, it's only 3:30 here on the left coast right now.

[snowtrooper1966]

I just called the NAPPA and he is out of seafoam. Is that a fuel system treatment?
Just put it in and drive?
I have to fill up about 40 miles away, and they do have some down there.
I have done no maintenance since the Dragon since has been mine.
I am about to chance out the rotors, add SS break lines as well as an aftermarket high flow intake.

The previous owner had codes P0171 and P 0174, lean 02 condition. The delaership replaced the intake manifold gaskets under warranty in 2005. Had injection system service done at same time.

He replaced the ABS sensor & the ECM in December.
The air filter was replaced with a K&N in January.

That's the extent of any major repairs. Regular service at correct intervals, excluding the 6K

Best,

[So-CalVX]

Correct me if I'm wrong, but the Mass Air Flow Sensor is the square piece inbetween the airbox and the intake. It has a screen in it and don't ask me how to clean it. I used a product when I was at Honda.

Richard