Join Date: Aug 2002
1.8 T.Spark problem...
I'm posting this message here as the 1.8 T.Spark engine is used in the 156 and someone may be able to help me...
I'm new to the group.
I have an Alfa 166 and my wife has a 146. Both are fab and have brought us both much joy. However, lately the 146 has developed a weird problem that I'd like to get to the bottom of:
It's a '98 146 1.8T.Spark. I understand this engine is also used in the 156, so hopefully someone out there has experienced this problem before and found a cure.
The engine when idling has a mind of its own. It will vary from 6-7k to over 20k by itself, and then settle to 10k. A few moments later and is has another rev about before settling. More worryingly is that when driving the car in normal use, it regularly cuts out when dropped into neutral at junctions as you approach a right turn etc. and has often left my wife looking rather silly as it cuts out leaving her in the middle of the road with no power steering etc.
I would greatly appreciate anybody’s suggestions for what may be at fault. The car has 58k miles and has had a full service and timing belt change at 56k. I know spark plug replacement is recommended at 60k miles, so maybe they are failing early?? The local dealer seems mystified, quoting me over €1000 to sort it out saying loads of things are wrong. A non-dealer mechanic I gave it to said it was a problem with a stepper motor, he replaced this and we got it calibrated at with a computer, but the problem remained.
Anybody got any previous experience of this type of problem on a 1.4/1.8/2.0 T.Spark???
Hoping someone can help,