Mechanics

HESITATING

1998 BMW 740

Engine Performance problem
1998 BMW 740 V8 Two Wheel Drive Automatic 137000 miles

1998 BMW 740il, driving down the road - tried to accelerate and now it wont go over 2000 rpm. It feels like it is missing really badly. What could it be?
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Kgurule
July 17, 2010.




Possibilities: Inspect and test all the following listed below: Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note: If it doesn't apply disregard it.
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Rasmataz
Jul 17, 2010.
It sounds like the fuel pressure is possibly the culprit.

Dr. Hagerty
Jul 18, 2010.
Camshaft position sensor

Tiny
Jinyfoot
Apr 7, 2012.
Yeah OK

Dr. Hagerty
Jan 2, 2013.

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