Code P0507

[blade007]

It's a 04 quest sl with 90K on it. The engine light came on 2 weeks ago with the same code. i had it read and cleared at advance auto as autozone will only read but not clear codes anymore. It stayed off for two weeks before it came on with the same code this afternoon. Strange thing is that the car runs great. No fast ideling that I can audibly hear or no reduction in power.

Has anyone ever encountered this? I don't want to go to the dealer with this as I have read some stories of it costing a pretty penny and the issue is not resolved.

Thanks.

[NissanTech]

There is a bulletin for that problem: Knowledgebase - 2004 Quest - Nissanhelp.com

You have to reset the idle.

[blade007]

This may actually coinside with the recent zoom treatment at sears. I have to mention though that the light came on in the same spot I was ideling in twice. That location maybe haunted.

I don't have access to a consult II. does that mean I have to go to the dealer?

Thanks.

[sergey85]

yeah you would need to head to dealer for that, what kind of service have u had done at sears

[blade007]

I had them change the Struts, mounts and shocks and then had them do the Zoom treatment. This treatment gets rid of the carbon buildup in the engine. It works great. My last car, 01 voyager had a lot of carbon buildup. After the treatment the difference in power was incredible. It only cost around $80 or so after taxes and they recommend one done every 15k

[blade007]

Funny thing, I started the car up this morning and the check engine soon light came off. Is this normal or should I worry?

Tks

[NissanTech]

It may have reset it self. It's normal.

[blade007]

Does that mean it will come back on? Should I still do the idle reset?

[sergey85]

u can ride it till it comes back, if it comes back do the relearn.

[blade007]

Thanks, will keep an eye on it. Hope it doesn't come back

[sergey85]

sounds good let us know how it works out after a 100 or so miles

[blade007]

Got about 300 miles out of it before it came back on again. I haven't read the code yet but I suspect that it is the same one as the van runs great without any problems. I have to do an inspection next month so I guess I will have to get this resolved.

I'll keep you posted.

[blade007]

Got the idle relearned at the dealer this morning. $89.99 + taxes. They said it was 100rpm above normal. They cleared the code and only time will tell.
Thanks for all your help.

[sergey85]

yeah let us now, good luck

[blade007]

I had the dealer relearn the idle as suggested a few weeks ago and after 1000 miles no light so I guess that solved the problem. Many thanks.

[sergey85]

awsome thanks for letting us know

[michaelwm]

I have a similar problem with my 05 murano...and do not want to go to the dealer for the same reasons....car runs fine...no power loss....does any one have suggestion...I did read there was a service bulliten out on this same problem for the 02 Altima 3.5

[sergey85]

have u tried resetting the idle, also take a look at the engine control section in the serrvice manual to find more info on the code