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From: Doki on 20 Sep 2009 14:27

"Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message
news:h8sunv$ak9$1(a)news.eternal-september.org...
> Doki wrote:
>> My girlfriend's Golf is having a bit of starting trouble. Basically, the
>> starter will spin the engine fairly well, up to about 400 revs or so,
>> which if I recall correctly, is about right for a starter. However, the
>> engine doesn't catch. Give it a welly full of throttle, and it'll fire
>> and then bog down again at around 600rpm, and stall. What it reminds me
>> of most is driving an old MK2 Golf with a bunged up ICV / the idle screw
>> turned too far in.
>>
>> Keep giving it a bit of throttle (say, 5 or ten seconds held at
>> 1000-1500rpm) and it's fine.
>>
>> I replaced the breather pipe that feeds from the oil seperator into the
>> airbox, so it's possible that the throttle body is gunged up, but I can't
>> see why that would cause cold start issues, but not at any other time.
>>
>> Other candidates are that the throttle body stepper motor has worked out
>> of alignment, and finally there's the possibility that there's something
>> wrong with the charging system / battery / spark, and there's not enough
>> energy to properly ignite a whiff of air and petrol in a cold engine, or
>> the alternator is pulling the engine revs down, trying to get some charge
>> into a near dead battery. The battery is claiming to be fine, with green
>> showing in the window.
>>
>> Obviously I'll have a bit more idea tomorrow, when I can take the DMM out
>> and get some readings for the battery voltage. Any other possibilities?
>
> Have you got VAG-COM? I'd do a scan, and clean, re-align the TB to start
> with.

I've got a demo version of Vag-com along with a cheap and nasty ebay cable.
Unforunately, that reports error 00282 - Throttle Position Actuator (V60)
36-00, Open circuit. Which fits with the throttle stepper motor appearing to
do nothing at all.

The wiring appears to be perfect, so I'm beginning to suspect the throttle
body. Second hand ones are around for �45, against �95-140 for a new item -
does anyone know if it's a major pain in the neck to swap one of these? If
it is, it's going to a man what knows...

From: Chris Bartram on 20 Sep 2009 14:40
Doki wrote:
>
> "Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message
> news:h8sunv$ak9$1(a)news.eternal-september.org...
>> Doki wrote:
>>> My girlfriend's Golf is having a bit of starting trouble. Basically,
>>> the starter will spin the engine fairly well, up to about 400 revs or
>>> so, which if I recall correctly, is about right for a starter.
>>> However, the engine doesn't catch. Give it a welly full of throttle,
>>> and it'll fire and then bog down again at around 600rpm, and stall.
>>> What it reminds me of most is driving an old MK2 Golf with a bunged
>>> up ICV / the idle screw turned too far in.
>>>
>>> Keep giving it a bit of throttle (say, 5 or ten seconds held at
>>> 1000-1500rpm) and it's fine.
>>>
>>> I replaced the breather pipe that feeds from the oil seperator into
>>> the airbox, so it's possible that the throttle body is gunged up, but
>>> I can't see why that would cause cold start issues, but not at any
>>> other time.
>>>
>>> Other candidates are that the throttle body stepper motor has worked
>>> out of alignment, and finally there's the possibility that there's
>>> something wrong with the charging system / battery / spark, and
>>> there's not enough energy to properly ignite a whiff of air and
>>> petrol in a cold engine, or the alternator is pulling the engine revs
>>> down, trying to get some charge into a near dead battery. The battery
>>> is claiming to be fine, with green showing in the window.
>>>
>>> Obviously I'll have a bit more idea tomorrow, when I can take the DMM
>>> out and get some readings for the battery voltage. Any other
>>> possibilities?
>>
>> Have you got VAG-COM? I'd do a scan, and clean, re-align the TB to
>> start with.
>
> I've got a demo version of Vag-com along with a cheap and nasty ebay
> cable. Unforunately, that reports error 00282 - Throttle Position
> Actuator (V60) 36-00, Open circuit. Which fits with the throttle stepper
> motor appearing to do nothing at all.
>
> The wiring appears to be perfect, so I'm beginning to suspect the
> throttle body. Second hand ones are around for �45, against �95-140 for
> a new item - does anyone know if it's a major pain in the neck to swap
> one of these? If it is, it's going to a man what knows...
I've had the TB off our Lupo (1.4 AFK) to clean it, and it was dead
easy- take off the airbox, then 4 bolts and one multi-plug. You'll want
a new rubber seal for it.
From: Doki on 20 Sep 2009 15:53

"Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message
news:h95sug$msi$1(a)news.eternal-september.org...
> Doki wrote:
>>
>> "Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message
>> news:h8sunv$ak9$1(a)news.eternal-september.org...
>
>> The wiring appears to be perfect, so I'm beginning to suspect the
>> throttle body. Second hand ones are around for �45, against �95-140 for a
>> new item - does anyone know if it's a major pain in the neck to swap one
>> of these? If it is, it's going to a man what knows...
>
> I've had the TB off our Lupo (1.4 AFK) to clean it, and it was dead easy-
> take off the airbox, then 4 bolts and one multi-plug. You'll want a new
> rubber seal for it.

Right then. Sounds like time for a new to me TB and find a man to reset the
stepper. There's no cheap way of doing it without forking out for full vag
com is there?

From: Chris Bartram on 20 Sep 2009 16:04
Doki wrote:
>
> "Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message
> news:h95sug$msi$1(a)news.eternal-september.org...
>> Doki wrote:
>>>
>>> "Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message
>>> news:h8sunv$ak9$1(a)news.eternal-september.org...
>>
>>> The wiring appears to be perfect, so I'm beginning to suspect the
>>> throttle body. Second hand ones are around for �45, against �95-140
>>> for a new item - does anyone know if it's a major pain in the neck to
>>> swap one of these? If it is, it's going to a man what knows...
>>
>> I've had the TB off our Lupo (1.4 AFK) to clean it, and it was dead
>> easy- take off the airbox, then 4 bolts and one multi-plug. You'll
>> want a new rubber seal for it.
>
> Right then. Sounds like time for a new to me TB and find a man to reset
> the stepper. There's no cheap way of doing it without forking out for
> full vag com is there?
It's rumoured that leaving the ignition on for a few minutes does it,
but I have my doubts. In fact, I just don't believe it.

Ask on one of the VAG forums (briskoda, seatcupra, audi-sport, uk-mkivs
etc for someone to do it. Where are you?
From: Dubber on 20 Sep 2009 16:34

"Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message
news:h95sug$msi$1(a)news.eternal-september.org...
> Doki wrote:
>>
>> "Chris Bartram" <news(a)delete-me.piglet-net.net> wrote in message
>> news:h8sunv$ak9$1(a)news.eternal-september.org...
>>> Doki wrote:
>>>> My girlfriend's Golf is having a bit of starting trouble. Basically,
>>>> the starter will spin the engine fairly well, up to about 400 revs or
>>>> so, which if I recall correctly, is about right for a starter. However,
>>>> the engine doesn't catch. Give it a welly full of throttle, and it'll
>>>> fire and then bog down again at around 600rpm, and stall. What it
>>>> reminds me of most is driving an old MK2 Golf with a bunged up ICV /
>>>> the idle screw turned too far in.
>>>>
>>>> Keep giving it a bit of throttle (say, 5 or ten seconds held at
>>>> 1000-1500rpm) and it's fine.
>>>>
>>>> I replaced the breather pipe that feeds from the oil seperator into the
>>>> airbox, so it's possible that the throttle body is gunged up, but I
>>>> can't see why that would cause cold start issues, but not at any other
>>>> time.
>>>>
>>>> Other candidates are that the throttle body stepper motor has worked
>>>> out of alignment, and finally there's the possibility that there's
>>>> something wrong with the charging system / battery / spark, and there's
>>>> not enough energy to properly ignite a whiff of air and petrol in a
>>>> cold engine, or the alternator is pulling the engine revs down, trying
>>>> to get some charge into a near dead battery. The battery is claiming to
>>>> be fine, with green showing in the window.
>>>>
>>>> Obviously I'll have a bit more idea tomorrow, when I can take the DMM
>>>> out and get some readings for the battery voltage. Any other
>>>> possibilities?
>>>
>>> Have you got VAG-COM? I'd do a scan, and clean, re-align the TB to start
>>> with.
>>
>> I've got a demo version of Vag-com along with a cheap and nasty ebay
>> cable. Unforunately, that reports error 00282 - Throttle Position
>> Actuator (V60) 36-00, Open circuit. Which fits with the throttle stepper
>> motor appearing to do nothing at all.
>>
>> The wiring appears to be perfect, so I'm beginning to suspect the
>> throttle body. Second hand ones are around for �45, against �95-140 for a
>> new item - does anyone know if it's a major pain in the neck to swap one
>> of these? If it is, it's going to a man what knows...
> I've had the TB off our Lupo (1.4 AFK) to clean it, and it was dead easy-
> take off the airbox, then 4 bolts and one multi-plug. You'll want a new
> rubber seal for it.

Much like on my golf, mine was quite dirty, I've noticed a vast improvement
since cleaning it. I will do it more often.

To doki, I'm not sure the shareware version of vag com will allow you to do
the TB alignment routine, unless you registe rit for like �50-ish. I Too
have a cheap crude lead form ebay, I made sure it worked with all modules
and then registered it. A bargain imo. Although at some point I would love a
genuine ross tech lead. Although I read a few forum posts suggestion theres
a way to remove the shareware restrictions sometime back, not sure how much
truth there is to this.


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