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1994 Mercedes Benz 420sl hesistation

Tiny
BMERTECH
  • MEMBER
  • 1994 MERCEDES BENZ 420SL
  • V8
  • 2WD
  • AUTOMATIC
  • 92,000 MILES
Vehicle had clogged cats replaced both then replace distributor cap and rotors and replaced wires and plugs but vehicle hesistaes when driving. Have to push pedal all the way down and it smells rich also used injector cleaner no power do u have any ideas
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Thursday, February 25th, 2010 AT 3:03 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hesitation, lack of acceleration, chugging, bogging:

Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position 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.**
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Thursday, February 25th, 2010 AT 6:59 PM

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