Re: '89 E-34 M-20 Problems

[Tom Lesko <tmlesko@xxxxxxxxxxxx>]

Andy,
Have you tried testing or changing the sensor for the water temp? That
feeds information to the computer and has some impact on the fuel mix. I
have the same car with a similar problem (!) but I have been ignoring it
until the weather gets better. A slight fluctuation in that sensor may
cause the problem we have. I think there is a test (voltage) in the
Bentley book.

Tom Lesko


> From: Andy Stevens
> Subject: E34 '89 525i (M20) cold weather problems <snip>
>
> About 2 years ago, it started stuttering during the first few miles of
> driving when the temperature was below freezing.  It can be going along
> quite nicely at about 2000rpm, 50mph then the engine dies for a fraction
> of a second, then back to normal.
>
> Second problem has started this winter.  It's now difficult to start
> when cold (again roughly below freezing).  It catches on the first few
> tries then dies.  If I then give it some throttle it eventually goes but
> it's like half of the cylinders aren't firing for a few seconds. <snip>

------------------------------