1989 BMW 325i, Check Engine sign, engine hesitation: what is it?

This has never before happened with this car; the car was hesitating
very badly today after driving about 10 miles, and although it got a
little better the rest of the day, it still hesitates a little from
time to time, and the check engine sign comes on for a second, then
goes away - comes on for a second, then goes away for a few minutes,
then comes back on again, as the engine hesitates/lurches for a second
or two, then runs okay again.
This summer it was parked for six weeks at my mechanic, who worked on
other things (rear wheel bearing); but this car needs to be driven
regularly, although not too much, since it already has 175,000 miles
on it. Once I picked up my car a month ago, the car was stalling/
hesitating when starting (this also had never happened before); the
mechanic told me to add STP fuel system cleaner, twice, which I did,
and that seemed to take care of it, and it's been running fine the
last couple of weeks. I don't know if today's problem is related to
the earlier one.
Please help me! What could this be?

go to AutoZone and get a free scan of your code. the symptoms you have sound
like what mine did , fix one spark plug cable bad

--
RS
2006 FLSTNI
2002 1200C
1991 FLSTF
"What shall we use to fill the empty spaces where we use to talk?"
"Nancy" > wrote in message
oups.com...
> This has never before happened with this car; the car was hesitating
> very badly today after driving about 10 miles, and although it got a
> little better the rest of the day, it still hesitates a little from
> time to time, and the check engine sign comes on for a second, then
> goes away - comes on for a second, then goes away for a few minutes,
> then comes back on again, as the engine hesitates/lurches for a second
> or two, then runs okay again.
> This summer it was parked for six weeks at my mechanic, who worked on
> other things (rear wheel bearing); but this car needs to be driven
> regularly, although not too much, since it already has 175,000 miles
> on it. Once I picked up my car a month ago, the car was stalling/
> hesitating when starting (this also had never happened before); the
> mechanic told me to add STP fuel system cleaner, twice, which I did,
> and that seemed to take care of it, and it's been running fine the
> last couple of weeks. I don't know if today's problem is related to
> the earlier one.
> Please help me! What could this be?
>