Engine Control System Failure
I'm new to the forum, and I must confess I'm not a great techie.
I have an '04 147 1.6 (petrol) that I bought second hand from an
Alfa dealer and is still under warranty. I'm taking it tomorrow for a
diagnostic, but this is the third time so I wondered if the forum might
have some bright ideas with which I could arm myself. So far the
technicians don't seem to be finding the answer to the problem.
Here are the symptoms. 'Engine Control System Failure' flashes up, and
for a split-second (literally less than a second) the engine cuts out and then
comes back. It typically 'hiccups' like this when the engine is idling and the car
in neutral at a traffic light. It can also do it in low gear - and on one occasion
it did it when the car was moving nicely along in fourth gear. As said, the engine
does not cut out completely or stall, but just blips for a split second.
The first two visits to the technicians led to the replacing of a multi-pin plug
that appears at the top of the engine near the windscreen; this plug (apologies
that I don't know its name) apparently connects the emissions system with
the computer. After that plug was replaced, the car ran well for a couple of
weeks, but the problem has resurfaced. It may be my imagination, but the car
also seems to be a bit sluggish now.
I spoke to the Alfa chap on the phone the other day, and he was wondering
whether it was the throttle body - but he admitted that was just guess work
until they do the diagnostic.
I wonder if anyone has experienced symptoms that match those which I've described?
I'd greatly appreciate any bright ideas! Thanks!