The Good, the Bad, and the Ugly

"Zathras" > wrote in message
...
> On Tue, 26 Jan 2010 16:40:24 -0000, "Dave Savage"
> > wrote:
>
>>
>>"Zathras" > wrote in message
. ..
>>> On Fri, 22 Jan 2010 10:49:14 -0000, "Dave Savage"
>>> > wrote:
>
>>> You've got to be kidding..Catman spotted that one on 16 of September
>>> last year!! It's, effectively, a 'wearable' part and it's so easy to
>>> swap too (unless you don't have another).
>
>>Being pedantic, it was October last year (but what's a month between
>>Alfisti
>>?).
>
> Are you running to a different calendar than the rest of us? The old
> Pussy was a lot sharper out the blocks than you're giving him credit.
>
>
> Full quote of message posted 16 Sep 2009 21:47:56 +0100
>
> "
>
> R C Nesbit wrote:
>> SteveH spoke:
>>> What has it done to deserve this?
>>
>> Probably a moody car like mine.
>>
>> Seriously - my 156 is a moody *******! One day it will
>> drive like a wheezing old bus, struggling to achieve any
>> decent acceleration, then the next it takes off like a
>> scalded cat!
>>
>>
>
> New MAF for you, mate.
>
> --
> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
> Tyger, Tyger Burning Bright (Remove rust to reply)
> 116 Giulietta 3.0l Sprint 1.7 145 2.0 Cloverleaf 156 V6 2.5 S2
> Triumph Sprint ST 1050: It's blue, see.
> www.cuore-sportivo.co.uk
>
> "
>
> --
> Z
> Scotland
> Alfa Romeo 156 2.4JTD Veloce Leather (sold)
> 'Oil' be seeing you..
> (Email must have the word 'Alfa' in the
> subject line to get through auto-filtering)

For the avoidance of doubt :

OK - Catman was diagnosing MAF problems in September, my particular problems
happened in October.

My gosh, if only all the world was this precise !!

BTW If it's an "air flow meter", why do we refer to MAF, not AFM ?

Dave S...

Dave Savage wrote:
> "Zathras" > wrote in message
> ...
>> On Tue, 26 Jan 2010 16:40:24 -0000, "Dave Savage"
>> > wrote:
>>
>>> "Zathras" > wrote in message
>>> ...
>>>> On Fri, 22 Jan 2010 10:49:14 -0000, "Dave Savage"
>>>> > wrote:
>>>> You've got to be kidding..Catman spotted that one on 16 of September
>>>> last year!! It's, effectively, a 'wearable' part and it's so easy to
>>>> swap too (unless you don't have another).
>>> Being pedantic, it was October last year (but what's a month between
>>> Alfisti
>>> ?).
>> Are you running to a different calendar than the rest of us? The old
>> Pussy was a lot sharper out the blocks than you're giving him credit.
>>
>>
>> Full quote of message posted 16 Sep 2009 21:47:56 +0100
>>
>> "
>>
>> R C Nesbit wrote:
>>> SteveH spoke:
>>>> What has it done to deserve this?
>>> Probably a moody car like mine.
>>>
>>> Seriously - my 156 is a moody *******! One day it will
>>> drive like a wheezing old bus, struggling to achieve any
>>> decent acceleration, then the next it takes off like a
>>> scalded cat!
>>>
>>>
>> New MAF for you, mate.
>>
>> --
>> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
>> Tyger, Tyger Burning Bright (Remove rust to reply)
>> 116 Giulietta 3.0l Sprint 1.7 145 2.0 Cloverleaf 156 V6 2.5 S2
>> Triumph Sprint ST 1050: It's blue, see.
>> www.cuore-sportivo.co.uk
>>
>> "
>>
>> --
>> Z
>> Scotland
>> Alfa Romeo 156 2.4JTD Veloce Leather (sold)
>> 'Oil' be seeing you..
>> (Email must have the word 'Alfa' in the
>> subject line to get through auto-filtering)
>
> For the avoidance of doubt :
>
> OK - Catman was diagnosing MAF problems in September, my particular problems
> happened in October.
>
> My gosh, if only all the world was this precise !!
>
> BTW If it's an "air flow meter", why do we refer to MAF, not AFM ?

The M is for 'mass' not 'meter'


--
Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
Tyger, Tyger Burning Bright (Remove rust to reply)
116 Giulietta 3.0l Sprint 1.7 GTV TS GT 3.2 V6
Triumph Sprint ST 1050: It's blue, see.
www.cuore-sportivo.co.uk

"Catman" > wrote in message
...
> Dave Savage wrote:
>> "Zathras" > wrote in message
>> ...
>>> On Tue, 26 Jan 2010 16:40:24 -0000, "Dave Savage"
>>> > wrote:
>>>
>>>> "Zathras" > wrote in message
>>>> ...
>>>>> On Fri, 22 Jan 2010 10:49:14 -0000, "Dave Savage"
>>>>> > wrote:
>>>>> You've got to be kidding..Catman spotted that one on 16 of September
>>>>> last year!! It's, effectively, a 'wearable' part and it's so easy to
>>>>> swap too (unless you don't have another).
>>>> Being pedantic, it was October last year (but what's a month between
>>>> Alfisti
>>>> ?).
>>> Are you running to a different calendar than the rest of us? The old
>>> Pussy was a lot sharper out the blocks than you're giving him credit.
>>>
>>>
>>> Full quote of message posted 16 Sep 2009 21:47:56 +0100
>>>
>>> "
>>>
>>> R C Nesbit wrote:
>>>> SteveH spoke:
>>>>> What has it done to deserve this?
>>>> Probably a moody car like mine.
>>>>
>>>> Seriously - my 156 is a moody *******! One day it will
>>>> drive like a wheezing old bus, struggling to achieve any
>>>> decent acceleration, then the next it takes off like a
>>>> scalded cat!
>>>>
>>>>
>>> New MAF for you, mate.
>>>
>>> --
>>> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
>>> Tyger, Tyger Burning Bright (Remove rust to reply)
>>> 116 Giulietta 3.0l Sprint 1.7 145 2.0 Cloverleaf 156 V6 2.5 S2
>>> Triumph Sprint ST 1050: It's blue, see.
>>> www.cuore-sportivo.co.uk
>>>
>>> "
>>>
>>> --
>>> Z
>>> Scotland
>>> Alfa Romeo 156 2.4JTD Veloce Leather (sold)
>>> 'Oil' be seeing you..
>>> (Email must have the word 'Alfa' in the
>>> subject line to get through auto-filtering)
>>
>> For the avoidance of doubt :
>>
>> OK - Catman was diagnosing MAF problems in September, my particular
>> problems happened in October.
>>
>> My gosh, if only all the world was this precise !!
>>
>> BTW If it's an "air flow meter", why do we refer to MAF, not AFM ?
>
> The M is for 'mass' not 'meter'
>
>

Aah !! I'm really confused now : if M is for 'mass', what are A & F for ?

Dave S...

Dave Savage wrote:
> "Catman" > wrote in message
> ...
>> Dave Savage wrote:
>>> "Zathras" > wrote in message
>>> ...
>>>> On Tue, 26 Jan 2010 16:40:24 -0000, "Dave Savage"
>>>> > wrote:
>>>>
>>>>> "Zathras" > wrote in message
>>>>> ...
>>>>>> On Fri, 22 Jan 2010 10:49:14 -0000, "Dave Savage"
>>>>>> > wrote:
>>>>>> You've got to be kidding..Catman spotted that one on 16 of September
>>>>>> last year!! It's, effectively, a 'wearable' part and it's so easy to
>>>>>> swap too (unless you don't have another).
>>>>> Being pedantic, it was October last year (but what's a month between
>>>>> Alfisti
>>>>> ?).
>>>> Are you running to a different calendar than the rest of us? The old
>>>> Pussy was a lot sharper out the blocks than you're giving him credit.
>>>>
>>>>
>>>> Full quote of message posted 16 Sep 2009 21:47:56 +0100
>>>>
>>>> "
>>>>
>>>> R C Nesbit wrote:
>>>>> SteveH spoke:
>>>>>> What has it done to deserve this?
>>>>> Probably a moody car like mine.
>>>>>
>>>>> Seriously - my 156 is a moody *******! One day it will
>>>>> drive like a wheezing old bus, struggling to achieve any
>>>>> decent acceleration, then the next it takes off like a
>>>>> scalded cat!
>>>>>
>>>>>
>>>> New MAF for you, mate.
>>>>
>>>> --
>>>> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
>>>> Tyger, Tyger Burning Bright (Remove rust to reply)
>>>> 116 Giulietta 3.0l Sprint 1.7 145 2.0 Cloverleaf 156 V6 2.5 S2
>>>> Triumph Sprint ST 1050: It's blue, see.
>>>> www.cuore-sportivo.co.uk
>>>>
>>>> "
>>>>
>>>> --
>>>> Z
>>>> Scotland
>>>> Alfa Romeo 156 2.4JTD Veloce Leather (sold)
>>>> 'Oil' be seeing you..
>>>> (Email must have the word 'Alfa' in the
>>>> subject line to get through auto-filtering)
>>> For the avoidance of doubt :
>>>
>>> OK - Catman was diagnosing MAF problems in September, my particular
>>> problems happened in October.
>>>
>>> My gosh, if only all the world was this precise !!
>>>
>>> BTW If it's an "air flow meter", why do we refer to MAF, not AFM ?
>> The M is for 'mass' not 'meter'
>>
>>
>
> Aah !! I'm really confused now : if M is for 'mass', what are A & F for ?
>

'Air' and 'Flow' respectively.

Differentiates from an AFM, which usually only measures volume.

The MAF uses a heated wire. As air is drawn across it, the wire is
cooled in direct proportion to the *mass* (and therefore sort of related
to the mass of Oxygen) of air passing over it. It matters not the
density of the air, so you don't have a problem compensating between
summer and winter. The ECU always knows how much air, and therefore
oxygen has been drawn in, and can therefore inject the correct amount of
fuel.

AFM measures flow speed, often by a means of a spring loaded flap, and
hence volume. In hot weather, the density of air decreases, so any
given cubic meter of air will contain less oxygen. Thus unless some kind
of compensation is applied, the engine will be running slightly rich.

Or at least that's how it's been explained to me.
--
Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
Tyger, Tyger Burning Bright (Remove rust to reply)
116 Giulietta 3.0l Sprint 1.7 GTV TS GT 3.2 V6
Triumph Sprint ST 1050: It's blue, see.
www.cuore-sportivo.co.uk

"Catman" > wrote in message
...
> Dave Savage wrote:
>> "Catman" > wrote in message
>> ...
>>> Dave Savage wrote:
>>>> "Zathras" > wrote in message
>>>> ...
>>>>> On Tue, 26 Jan 2010 16:40:24 -0000, "Dave Savage"
>>>>> > wrote:
>>>>>
>>>>>> "Zathras" > wrote in message
>>>>>> ...
>>>>>>> On Fri, 22 Jan 2010 10:49:14 -0000, "Dave Savage"
>>>>>>> > wrote:
>>>>>>> You've got to be kidding..Catman spotted that one on 16 of September
>>>>>>> last year!! It's, effectively, a 'wearable' part and it's so easy to
>>>>>>> swap too (unless you don't have another).
>>>>>> Being pedantic, it was October last year (but what's a month between
>>>>>> Alfisti
>>>>>> ?).
>>>>> Are you running to a different calendar than the rest of us? The old
>>>>> Pussy was a lot sharper out the blocks than you're giving him credit.
>>>>>
>>>>>
>>>>> Full quote of message posted 16 Sep 2009 21:47:56 +0100
>>>>>
>>>>> "
>>>>>
>>>>> R C Nesbit wrote:
>>>>>> SteveH spoke:
>>>>>>> What has it done to deserve this?
>>>>>> Probably a moody car like mine.
>>>>>>
>>>>>> Seriously - my 156 is a moody *******! One day it will
>>>>>> drive like a wheezing old bus, struggling to achieve any
>>>>>> decent acceleration, then the next it takes off like a
>>>>>> scalded cat!
>>>>>>
>>>>>>
>>>>> New MAF for you, mate.
>>>>>
>>>>> --
>>>>> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
>>>>> Tyger, Tyger Burning Bright (Remove rust to reply)
>>>>> 116 Giulietta 3.0l Sprint 1.7 145 2.0 Cloverleaf 156 V6 2.5 S2
>>>>> Triumph Sprint ST 1050: It's blue, see.
>>>>> www.cuore-sportivo.co.uk
>>>>>
>>>>> "
>>>>>
>>>>> --
>>>>> Z
>>>>> Scotland
>>>>> Alfa Romeo 156 2.4JTD Veloce Leather (sold)
>>>>> 'Oil' be seeing you..
>>>>> (Email must have the word 'Alfa' in the
>>>>> subject line to get through auto-filtering)
>>>> For the avoidance of doubt :
>>>>
>>>> OK - Catman was diagnosing MAF problems in September, my particular
>>>> problems happened in October.
>>>>
>>>> My gosh, if only all the world was this precise !!
>>>>
>>>> BTW If it's an "air flow meter", why do we refer to MAF, not AFM ?
>>> The M is for 'mass' not 'meter'
>>>
>>>
>>
>> Aah !! I'm really confused now : if M is for 'mass', what are A & F for
>> ?
>>
>
> 'Air' and 'Flow' respectively.
>
> Differentiates from an AFM, which usually only measures volume.
>
> The MAF uses a heated wire. As air is drawn across it, the wire is cooled
> in direct proportion to the *mass* (and therefore sort of related to the
> mass of Oxygen) of air passing over it. It matters not the density of the
> air, so you don't have a problem compensating between summer and winter.
> The ECU always knows how much air, and therefore oxygen has been drawn in,
> and can therefore inject the correct amount of fuel.
>
> AFM measures flow speed, often by a means of a spring loaded flap, and
> hence volume. In hot weather, the density of air decreases, so any given
> cubic meter of air will contain less oxygen. Thus unless some kind of
> compensation is applied, the engine will be running slightly rich.
>
> Or at least that's how it's been explained to me.
> --
> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
> Tyger, Tyger Burning Bright (Remove rust to reply)
> 116 Giulietta 3.0l Sprint 1.7 GTV TS GT 3.2 V6
> Triumph Sprint ST 1050: It's blue, see.
> www.cuore-sportivo.co.uk

Excellent - very erudite - thanks.

Dave S...

Dave Savage wrote:
> "Catman" > wrote in message
> ...
>> Dave Savage wrote:
>>> "Catman" > wrote in message
>>> ...
>>>> Dave Savage wrote:
>>>>> "Zathras" > wrote in message
>>>>> ...
>>>>>> On Tue, 26 Jan 2010 16:40:24 -0000, "Dave Savage"
>>>>>> > wrote:
>>>>>>
>>>>>>> "Zathras" > wrote in message
>>>>>>> ...
>>>>>>>> On Fri, 22 Jan 2010 10:49:14 -0000, "Dave Savage"
>>>>>>>> > wrote:
>>>>>>>> You've got to be kidding..Catman spotted that one on 16 of September
>>>>>>>> last year!! It's, effectively, a 'wearable' part and it's so easy to
>>>>>>>> swap too (unless you don't have another).
>>>>>>> Being pedantic, it was October last year (but what's a month between
>>>>>>> Alfisti
>>>>>>> ?).
>>>>>> Are you running to a different calendar than the rest of us? The old
>>>>>> Pussy was a lot sharper out the blocks than you're giving him credit.
>>>>>>
>>>>>>
>>>>>> Full quote of message posted 16 Sep 2009 21:47:56 +0100
>>>>>>
>>>>>> "
>>>>>>
>>>>>> R C Nesbit wrote:
>>>>>>> SteveH spoke:
>>>>>>>> What has it done to deserve this?
>>>>>>> Probably a moody car like mine.
>>>>>>>
>>>>>>> Seriously - my 156 is a moody *******! One day it will
>>>>>>> drive like a wheezing old bus, struggling to achieve any
>>>>>>> decent acceleration, then the next it takes off like a
>>>>>>> scalded cat!
>>>>>>>
>>>>>>>
>>>>>> New MAF for you, mate.
>>>>>>
>>>>>> --
>>>>>> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
>>>>>> Tyger, Tyger Burning Bright (Remove rust to reply)
>>>>>> 116 Giulietta 3.0l Sprint 1.7 145 2.0 Cloverleaf 156 V6 2.5 S2
>>>>>> Triumph Sprint ST 1050: It's blue, see.
>>>>>> www.cuore-sportivo.co.uk
>>>>>>
>>>>>> "
>>>>>>
>>>>>> --
>>>>>> Z
>>>>>> Scotland
>>>>>> Alfa Romeo 156 2.4JTD Veloce Leather (sold)
>>>>>> 'Oil' be seeing you..
>>>>>> (Email must have the word 'Alfa' in the
>>>>>> subject line to get through auto-filtering)
>>>>> For the avoidance of doubt :
>>>>>
>>>>> OK - Catman was diagnosing MAF problems in September, my particular
>>>>> problems happened in October.
>>>>>
>>>>> My gosh, if only all the world was this precise !!
>>>>>
>>>>> BTW If it's an "air flow meter", why do we refer to MAF, not AFM ?
>>>> The M is for 'mass' not 'meter'
>>>>
>>>>
>>> Aah !! I'm really confused now : if M is for 'mass', what are A & F for
>>> ?
>>>
>> 'Air' and 'Flow' respectively.
>>
>> Differentiates from an AFM, which usually only measures volume.
>>
>> The MAF uses a heated wire. As air is drawn across it, the wire is cooled
>> in direct proportion to the *mass* (and therefore sort of related to the
>> mass of Oxygen) of air passing over it. It matters not the density of the
>> air, so you don't have a problem compensating between summer and winter.
>> The ECU always knows how much air, and therefore oxygen has been drawn in,
>> and can therefore inject the correct amount of fuel.
>>
>> AFM measures flow speed, often by a means of a spring loaded flap, and
>> hence volume. In hot weather, the density of air decreases, so any given
>> cubic meter of air will contain less oxygen. Thus unless some kind of
>> compensation is applied, the engine will be running slightly rich.
>>
>> Or at least that's how it's been explained to me.
>> --
>> Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
>> Tyger, Tyger Burning Bright (Remove rust to reply)
>> 116 Giulietta 3.0l Sprint 1.7 GTV TS GT 3.2 V6
>> Triumph Sprint ST 1050: It's blue, see.
>> www.cuore-sportivo.co.uk
>
> Excellent - very erudite - thanks.
>


We aim to please


--
Catman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3
Tyger, Tyger Burning Bright (Remove rust to reply)
116 Giulietta 3.0l Sprint 1.7 GTV TS GT 3.2 V6
Triumph Sprint ST 1050: It's blue, see.
www.cuore-sportivo.co.uk

On Wed, 27 Jan 2010 12:55:06 +0000, Catman
> wrote:

I'll even let the 'old pussy' comment pass.......

:-)

--
Z
Scotland
Alfa Romeo 156 2.4JTD Veloce Leather (sold)
'Oil' be seeing you..
(Email must have the word 'Alfa' in the
subject line to get through auto-filtering)