not moving fast

2000 MERCEDES BENZ C280
50,000 MILES • 4 CYL • 2WD • MANUAL
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EVIKTOKUNBO
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  • 1 POST
My C280 came with ML Engine but I have changed it to Engine 200e due of many problem I have faced on the engine , now I have been using my C280 with the 200e engine more than a year , started for three weeks the car started giving different kind of style , not ,not moving fast and sudden off , I took it to Benz specialist and he told me to change fuel pump and fuel filter which I did, and later change nozzle and injection but still the problem persist, and I have wasted much money on this car , not moving and when climbing hill or somewhere that's has UP , the voice changed to DO like lazing climbing the up.[img:ed592bcf42]http://www.2carpros.com/forum/automotive_pictures/553891_C_Accident_2_1.jpg[/img:ed592bcf42]
Jul 24, 2010 at 9:25 AM
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RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Lack of acceleration,chugging,hesitating,bogging etc. could be caused by one of the following below:

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.
Jul 25, 2010 at 3:44 AM