Fault Code Diagnosis (was Coolant Leakage Solved-BUT)
brett at cloud9.net
Tue Aug 2 18:36:34 EDT 2005
On Aug 2, 2005, at 5:55 PM, n-engelbert at terrans.net wrote:
>> Sounds like my guys may be lower primates, no?
>> Can any modern hardware & software pull these correctly or does one
>> need a 1551? The shop I'm going to talk to tomorrow claims to have a
>> setup that will do Audis along with other makes. Please advise.
> Just need a LED and a 330 ohm resistor in series and a jumper wire.
The fault code light method will not distinguish or even indicate
faults the Motronic considers intermittent. VAG-COM, Prodiag, and
all the VAG factory tools will not only dump all the codes, but it
will also display whether the fault was intermittent or not. The
scan-tools will also allow you to read block values to see a few
important sensor and adaptation values.
As a side note, when my aux coolant pump cracked and started leaking,
I had similar problems with the car running very poorly under all but
the slightest load; it also seemed like there was a 'dead' spot on
the throttle, right above idle...go a little bit more, and then you'd
get a noticeable increase in power.
It went away with the new pump and a "burp" (parked the car on a
steep incline, idled it without the reservoir cap until it was warmed
up quite a bit).
"They that give up essential liberty to obtain temporary
safety deserve neither liberty nor safety." - Ben Franklin
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