car stalls, 740 station wagon 1990

  • Thread starter Thread starter norpe
  • Start date Start date
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norpe

Car is 740, year 1990 station wagon:
Motor (2.3 L) stalls when driving. Can happen when motor is warm or cold,
driving slow or fast. "Check enging" light comes on. Starts up again without
any problem. This has happened about 5-6 times during the last month. Seems
to be some intermittent problem. Took it to dealer. The check engine light
is still on. Dealer says that when computer is checked, states that engine
light came on because of load sensor signal or speed (speedometer? ) input
signal. Cannot repair it because signals are all OK now. Cold be problem w
computer, load sensor, some loose wire, or whatever. Told me to come back
when it cannot be started, because then they can diagnose it and see what is
wrong. Has anyone experienced similar problem???? Cannot take car far from
home, because never knows when it will act up again.
 
Has anyone checked inside the distributor cap and the rotor arm for tracking
or condensation? This can cause this intermittent problem. The cap is a
bit awkward to get off but it may be worth a look.
Cheers
 
Same thing happened to my 91 940, it turned out to be a bad diode in the
ecu, Had to change the whole thing....
 
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