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Today's topics:
* Sentra 97 AFM or fuel pump? (or maybe something else) - 1 messages, 1 author
http://groups.google.com/group/alt.autos.nissan/t/dd7dae047a0c4c8c?hl=en
* Nissan Rolls Out Micra DIG-S - 1 messages, 1 author
http://groups.google.com/group/alt.autos.nissan/t/ba9ac87502079472?hl=en
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TOPIC: Sentra 97 AFM or fuel pump? (or maybe something else)
http://groups.google.com/group/alt.autos.nissan/t/dd7dae047a0c4c8c?hl=en
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== 1 of 1 ==
Date: Mon, Feb 14 2011 1:39 pm
From: Me
On 15/02/2011 4:40 a.m., robbie wrote:
> On Feb 5, 3:18 am, Me<u...@domain.invalid> wrote:
>> On 5/02/2011 10:45 a.m., Me wrote:
>>
>>
>>
>>> On 4/02/2011 10:28 a.m., Me wrote:
>>
>>>>>> My older Sentra had a bad problem that felt like fuel starvation. I
>>>>>> diagnosed FOREVER until it quit running entirely. Then i found out the
>>>>>> coil was bad. It had evidently been "going bad" for quite a while, but
>>>>>> I had checked it and it had a spark and was within specs when cold but
>>>>>> evidently did not work properly under load.Never a CEL in all that
>>>>>> time... If you have a junk yard nearby it would be worth your time to
>>>>>> swap it out. Instantly cured hesitation, a crappy idle, lower power-
>>>>>> the 1.6 runs like a sewing machine again.
>>
>>> Bingo!
>>
>>> Bought a used distributor from a wrecker's yard this morning (pulled it
>>> out myself from a low km wreck, and took the cover off to check it was
>>> clean inside), swapped them over, set timing, and problem fixed.
>>> (Mine wasn't hesitating on acceleration, or idling rough, which is
>>> typical symptom of MAF going bad, but it was a fuel-starvation like miss
>>> under load, only when warm, with no CEL).
>>
>>> Cheers / Me
>>
>> Bugger it - I should never have posted the above - premature smugness on
>> my part. Sure enough, later today on a slightly longer run, it started
>> showing exactly the same symptoms - so bad I was lucky to get home, as
>> it completely died a few times.
>> I have since cut the cover-plate from the MAF, removed the PCB,
>> resoldered all components / connections on the PCB, cleaned (carefully
>> with small artist brush and CRC carb cleaner) the hot wire and
>> temperature sensor resistor, reassembled, glued cover-plate back down
>> with RTV, and have taken the car on several truly long runs - problem
>> seems to finally be solved.
>> So dammit, it seems that it was the MAF / AFM after all.
>> I can return the used distributor, but it was quite cheap, from quite
>> low mileage car, and when I set timing with inductive light, at idle
>> speed the new distributor seemed to be much steadier/less "jumpy" than
>> the old one was, so although probably not the cause of the problems, the
>> old distributor was probably not very good / marginal anyway.
>
> good catch on the MAF. dry solder joints suck! i can tell you are a
> diy maniac, so glad you got it cured on your own without dealing with
> a mechanic. I have heard so many people tell stories about even
> dealerships throwing parts at a problem without a true diagnosis.
> apologies to the GOOD mechanics on this group! BTW I bought a Consult
> device (it is serial based - old tech) that plugs into the non-obdII
> cpu port. it came with ConZult freeware version which doesnt do much
> but will pull codes and let you see the timing. it cost me about $29
> on ebay. Just search for Nissan Consult. No i am NOT the seller, just
> a satisfied buyer. With the right software you could leave it
> installed and access on the fly adjustment to fuel etc but needless to
> say I wasn't really interested in it for that reason.
Thanks - I see that the "consult" cables and software is also available
here, USB version, about US$80 or so.
There's a design issue with these MAFs, on GA15DE and some other Nissan
motors, the MAF is combined in the throttle body, so it gets hot. I
think on some GA16DE, the MAF is on the intake close to but separate
from the throttle body, and probably gets less vibration and less heat,
but they can still be a problem. It's running perfectly now.
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TOPIC: Nissan Rolls Out Micra DIG-S
http://groups.google.com/group/alt.autos.nissan/t/ba9ac87502079472?hl=en
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== 1 of 1 ==
Date: Sun, Feb 20 2011 11:17 pm
From: sjmmail2000-247@yahoo.co.uk
If you are looking for one of the cleanest petrol engine available at the moment, Nissan's Micra DIG-S unit has CO2 emissions of only 95 g/km. It is a 3-cylinder 1.2-liter direct injection unit that has a supercharger and it can be mated to either a traditional manual transmission or to a CVT automatic gearbox. [...] Post published on Rpmgo.com Nissan Rolls Out Micra DIG-S
Read More: http://feedproxy.google.com/~r/AutoUnleashed/~3/2y9M1UN2AR4/nissan-rolls-micra-dig
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