Not moving fast

EVIKTOKUNBO

MEMBER
2000 MERCEDES BENZ C280
4 CYL
2WD
MANUAL
50,000 MILES

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.

1 Reply

RASMATAZ

MECHANIC
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.