350i randomly running poorly
Discussion
Good Morning Gents,
Here is the issue for the group;
One of the guys here in the states that has a 390i has had this problem for a while now and I started to experience it in the last 400 miles or so.
While driving, and for random lengths of time the car will start to miss and run s
tty. Accelerating and decelerating is not an issue but just driving along at a set speed seems to cause the engine to miss. It also looks like the fuel usage goes way up and is obvious by the smell and residue on the back of the car.
On the 390, they have changed temp sensors, added a fuel regulator, looked into the timing and other things that I'm trying to get a list of.
There doesn't seem to be an correlation to weather, temp, amount of time driven or fuel type used. It just randomly starts and stops. It might be 5 minutes or, like yesterday the majority of the trip back from Woodwork, nearly 2.5 hours.
Have any of you guys on that side of the pond had this issue?
Any and all suggestions would help. I don't really want to start changing things till the problem goes away. So with the vast experience of the group, the correct solution might pop up quickly!
Charlie
Here is the issue for the group;
One of the guys here in the states that has a 390i has had this problem for a while now and I started to experience it in the last 400 miles or so.
While driving, and for random lengths of time the car will start to miss and run s
tty. Accelerating and decelerating is not an issue but just driving along at a set speed seems to cause the engine to miss. It also looks like the fuel usage goes way up and is obvious by the smell and residue on the back of the car.On the 390, they have changed temp sensors, added a fuel regulator, looked into the timing and other things that I'm trying to get a list of.
There doesn't seem to be an correlation to weather, temp, amount of time driven or fuel type used. It just randomly starts and stops. It might be 5 minutes or, like yesterday the majority of the trip back from Woodwork, nearly 2.5 hours.
Have any of you guys on that side of the pond had this issue?
Any and all suggestions would help. I don't really want to start changing things till the problem goes away. So with the vast experience of the group, the correct solution might pop up quickly!
Charlie
Will do Ziga.
I was just out rolling up my cover and putting it away and opened the bonnet to take a look around. I pressed in on the plug on the ECM on the left front fender and it moved in. Feels a bit like it should move in since it is sort of springy.
Anyway, I noticed a small ground strap from one of the mounting legs which led down under the air cleaner and I found that it wasn't attached to anything! Probably not good. What should it be attached to?
Charlie
I was just out rolling up my cover and putting it away and opened the bonnet to take a look around. I pressed in on the plug on the ECM on the left front fender and it moved in. Feels a bit like it should move in since it is sort of springy.
Anyway, I noticed a small ground strap from one of the mounting legs which led down under the air cleaner and I found that it wasn't attached to anything! Probably not good. What should it be attached to?
Charlie
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