Mechanics

CAR BUCKS AND SPUTTER

1988 Mercedes Benz 420sel

Engine Performance problem
1988 Mercedes Benz 420sel V8 Two Wheel Drive Automatic 50000 miles

Car sputter and buck when try to accelerate fast
Avatar
Tutwis
November 6, 2010.



Could be caused by one of the following 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

Rasmataz
Nov 6, 2010.