Nissan Primera P11 144 Fault / Error code P0171 |
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garyh
NPOC Guest Joined: 04 Sep 2007 Location: Durham Online Status: Points: 113 |
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Been following this thread with interest.
I had the same fault code (P0171) which appeared a month or so ago. I read the code and cleared it without doing anything.
About 2 weeks ago the light came on again, same code. This time i didn't clear it, but the light went out itself after a day or so. The same thing happened last week, and again the light went out itself after a couple of hours
From reading the post, could this be an intermittent fault with the MAF or O2 sensor? Is that possible?
I've never seen a management light go out itself before without doing anything.
thanks
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FluX
NPOC Guest Joined: 04 Aug 2009 Online Status: Points: 62 |
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I'm not saying its definite, but I'd put money on a dirty MAF. I've had 3 P10's which were no problem, and now got 2 P11-144's which both had same problem - dirty MAF.
Now both of them are fine after very careful cleaning of the MAF. The MIL should go out after a couple of drives if the fuel/ air ratio falls back into spec |
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garyh
NPOC Guest Joined: 04 Sep 2007 Location: Durham Online Status: Points: 113 |
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After reading this and other threads, i assumed it would be turn out to be the MAF. Think i'll leave it for a few weeks and see if light comes back on again.
Can you clean the film type MAF's on P11-144's? I always thought it had to be replaced?
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krazylegz
NPOC Guest Joined: 26 Apr 2009 Location: Newcastle Online Status: Points: 142 |
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99% of people on here would say you have to replace the foil type MAF's however flux says hes successfully cleaned two using fluxclene and a fine artists tooth brush, i've got two none working MAFS so i'm going to attempt to clen mine when i get home on the weekend of the 25th
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FluX
NPOC Guest Joined: 04 Aug 2009 Online Status: Points: 62 |
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toothbrush?? I'm sure you meant paintbrush didn't you Krazy? |
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FluX
NPOC Guest Joined: 04 Aug 2009 Online Status: Points: 62 |
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and yeah I have cleaned two MAF's and both are working to what I would say is "100%" or as near as.
BUT... I only recommend doing this if, like me, or Krazylegs, you have a spare. I took one apart last year so I knew how delicate the element was. |
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tony_primera_se
NPOC Guest Joined: 26 Mar 2007 Location: Berkshire Online Status: Points: 146 |
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Hi,
i have p11 144 1.8 Pimera.
i too have the P0171 code,
popped it into nissan today and the consult and the guy said ah oxygen sensor,
possibly the one before the cat,
asked how much and he recomended changing both to be safe,
then they hit me with a price of £160 each plus vat
Popped into local motor factors and they said yup can get them
this is when it got interesting,
they said theres only one listed on your car, i said no there are two sensors,
they were certain there is only one, so i got under the car and said there 1 and theres the other in the exhaust pipe that goes under the sump,
he said no probs they must be the same sensor,
so later today i had another look, the pre cat sensor is a 3 wire and the one after the cat is a 4 wire sensor,
is this correct?
if so wheres the best place to get replacement sensors,
are they bosch sensors? if so any opne got the bosch numbers off the 2 sensors please.
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Stock P11-144 1.8 16V SE
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Stevie J
NPOC Guest Joined: 18 Dec 2008 Online Status: Points: 2415 |
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99% chance if you havent changed the MAF, it'll be that thats going down. Try the local breakers for another MAF, but you can get them online for much less than Nissan.
There are loads of threads on the 0171 code - do a search and you will see that it is the MAF every time.
Replacing the O2 sensors will be a waste of money and Nissan would do this, charge you for it, then tell you - oh, it must be the MAF thats at fault then!
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imckay
NPOC Member Joined: 11 Mar 2007 Location: Manchester Online Status: Points: 3374 |
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If you do need a new MAF, try your local Bosch dealer.
They sell proper Bosch exchange MAFs for around £50.
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tony_primera_se
NPOC Guest Joined: 26 Mar 2007 Location: Berkshire Online Status: Points: 146 |
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cheeers guys,
have bought the pre cat sensor now though :(
will enquire about the MAF this week,
local motor factors are a bosch agent so will give them the part numbers off the MAF.
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Stock P11-144 1.8 16V SE
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