Last post on Jan 08, 2012 at 8:34 PM
You are in the Nissan Quest
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Nissan Quest, Mercury Villager, Van
#312 of 511 Nissan Quest 1997 running "lean"
Nov 10, 2009 (8:33 pm)
I just change the oxygen sensor and the knock sensor and drove it 2000 miles. All of a sudden, it started to run rough and then now today, the check engine light came on. I took it to the shop where they had fixed it the last time and they stated that the computer signal came back as "running lean". I know that the PVC valve could be in the way as well as the MAF sensor in the air filter. Any other idea? I don't want to spend another $500 for a simple fix.
#313 of 511 Re: Suddenly started running rough [gene55]
Nov 12, 2009 (6:26 am)
Distributor...read past posts
#314 of 511 Re: Suddenly started running rough [gene55]
Nov 12, 2009 (1:16 pm)
Hello: I wrote post #310 about the 2000 Villager and I am not certain where to put this post but I have some new information. I had three error codes, in the order they read they are:
P0325 Knock Sensor 1Circuit (Bank 1), P0303 Cylinder 3 Misfire Detected, and the last one P0303 Cylinder 3 Misfire Detected and the meter showed a little Pd symbol after it.
I checked the plug wires at the distrubtor cap and at the plugs, one by one and they were clean, corrosion free and secure. I took the distributor cap off and it was nice and clean. The car was my wife's and only has 37,000 miles and she didn't work so it was in the garage most of the time. The rough running starting very suddenly.
#315 of 511 problem solved, lesson learned
Nov 13, 2009 (12:48 pm)
Anyone following my posts will see that I had a combination of error codes, specifically P0303 and P0325 the infamous knock sensor. Anyway I eventually did what I usually do first with a rough running car and poured a bottle of Gumout into the gas tank. After a very short idle period it smoothed out then I erased the error codes, drove it around a couple times, re-checked, no more error codes. Moral to the story, check the basics first. Much cheaper than going to the dealer and don't rely on the codes.
#316 of 511 Re: problem solved, lesson learned [gene55]
by Stever@Edmunds HOST
Nov 13, 2009 (3:45 pm)
Good to hear Gene (and yeah, been following your saga).
Steve, visiting host
#317 of 511 1999 mercury villager dies when coming to a stop
Nov 22, 2009 (6:18 pm)
My wife has a 1999 Mercury Villager that hasn't been driven in over 2 years. I guess it started running rough then it started dying when she would come to a stop an wouldn't start back up for a little bit. I'm not sure what sensor was replaced but I think it was the mass flow sensor but when they tried to drive it around the block it still continued to do the same thing. If anyone has any idea what this could be please help, she's moving from Oregon to Kansas to come be with me where I am stationed and her other vehicle is a POS.
#318 of 511 Re: 1999 mercury villager dies when coming to a stop [dennymorgan75]
Nov 22, 2009 (7:18 pm)
Not a lot to go on, but just an idea you might try and won't cost much. It could be the injectors that have gotten gunked up from sitting so long. Lucas injector cleaner does a good job of cleaning them if they are not too bad. You need to drive it a bit to get working though which might be tough if it is running poorly. Could have someone check the air filter too. Sometimes mice get in there and make a nest when it sits that long and could clog stuff up.
Hope that helps
#319 of 511 Re: 1999 mercury villager dies when coming to a stop [jwooden]
Nov 22, 2009 (9:10 pm)
The problem isn't from it sitting too long cause she already thought of that and it didn't work, it's still doing the same thing it did before. I think it might be the idle control valve but it might also have to do with the distributor or an O2 sensor or one of the other many other sensors. I'm just not sure and I really don't have a bunch of money to dump into it.
#320 of 511 Re: 1999 mercury villager dies when coming to a stop [dennymorgan75]
Nov 22, 2009 (10:22 pm)
also she just told me it runs fine till it warms up, once it warms up it dies unless you continue to give it gas.
#321 of 511 Re: Yep, that was it.... [canyonsvo]
Dec 16, 2009 (12:39 pm)
Thank you for all of the info. Cleaning the metal shavings out of the distributor has solved our problem.