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Old January 21st 11, 11:02 AM posted to alt.autos.alfa-romeo
Zathras
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Posts: 742
Default Help me diagnose this splutter...

On Thu, 20 Jan 2011 15:42:45 +0000, Catman
> wrote:

>On 20/01/2011 12:57, GT wrote:
><snip symptoms>
>>>>
>>>
>>> Is it drive by wire? If so, I'd bet on the throttle pot.
>>> Failing that I'd be giving the AFM a stern look.

>>
>> Yup, I believe there is a small computer between my right foot and the
>> engine, instead of a cable!

>
>Mine has a cable, alright. It's just that it carries a signal (well a
>resistance really, but not sure if you can really carry a resistance) to
>the ECU.
>
>> I looked at the MAF (?) sensor in the air intake when I was replacing the
>> thermostat the other week. I had never seen a MAF before and was thoroughly
>> un-impressed!. I covered the top of the air intake with a cloth to avoid any
>> nasties getting in there, and it all looked clean as a whistle when I put
>> the hose back on. All has been fine for a few weeks since the thermostat
>> replacement, so I don't think its anything that I've introduced, but
>> obviously I can't say for sure!

>
>Well the MAF on the TS was a known issue. Even if they looked OK, when
>the wire got dirty, it was game over.
>
>OTOH if it *was* the MAF, you'd maybe get issues more. I'm definiteley
>leaning to the variable resistor on the throttle pedal being worn.


The MAF on my diesel Alfa failed and gave EXACTLY the same symptoms as
the OP describes. FWIW.

--
Z
Scotland
Alfa Romeo 156 2.4JTD Veloce Leather (sold)
'Oil' be seeing you..
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