c180k 2004 misfire cyl 1
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c180k
c180k 2004 misfire cyl 1
HI
I HAVE A C180COMPRESSOR WITH DTC P0301 AND P201A P201B CHANGED ALLREADY IGNITION COIL SPARK PLUGS AND INJECTOR NR 1 BUT THE PROBLEM IS STILL THERE. THE MISFIRE COMES IN AT IDLE SPEED AND WHEN WE TURN OFF THE IGNITION AND RESTART ENGINE ITS RUNNING GOOD FOR ABOUT 30 SEC. WHEN THE ENGINE IS COLD THRES NO PROBLEM BUT WHEN ITS COMES TO ABOUT 50 DEGREES CELSIUS IT STARTS MISFIRING. ANY IDEAS WHATS CAUSING THIS PROBLEM?
THANKS
I HAVE A C180COMPRESSOR WITH DTC P0301 AND P201A P201B CHANGED ALLREADY IGNITION COIL SPARK PLUGS AND INJECTOR NR 1 BUT THE PROBLEM IS STILL THERE. THE MISFIRE COMES IN AT IDLE SPEED AND WHEN WE TURN OFF THE IGNITION AND RESTART ENGINE ITS RUNNING GOOD FOR ABOUT 30 SEC. WHEN THE ENGINE IS COLD THRES NO PROBLEM BUT WHEN ITS COMES TO ABOUT 50 DEGREES CELSIUS IT STARTS MISFIRING. ANY IDEAS WHATS CAUSING THIS PROBLEM?
THANKS
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,152
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From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
You probably have leaking crankcase breather hoses. This will throw many misfire codes and can give a surging idle.
Do a search, there are threads with alot of pics of the problem, it's well documented.
Do a search, there are threads with alot of pics of the problem, it's well documented.
Thread Starter
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Joined: Dec 2009
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c180k
cyl 1 misfiring c180k
thanks for replying ausmbtech
however we cheked the breather hose and its all fine. like i said when the engine is cold then thers no problem but when its warming up to about 50 to 60 degrees celsius it starts misfiring always on cyl 1. we checked today the ecu connections and find out that when me measure on the wires of the nr 1 injector the signal is disappearing when it starts misfiring could this be a ecu fault or is there another possibility thats causing this problem?
thanks
however we cheked the breather hose and its all fine. like i said when the engine is cold then thers no problem but when its warming up to about 50 to 60 degrees celsius it starts misfiring always on cyl 1. we checked today the ecu connections and find out that when me measure on the wires of the nr 1 injector the signal is disappearing when it starts misfiring could this be a ecu fault or is there another possibility thats causing this problem?
thanks
Member
Joined: Jan 2005
Posts: 84
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From: fremont CA
99 c43
misfire-
check the signal to the injector before starting, if its there and then disappears its not the dme-check compression , likely cylinder low on compression due to wear on the valve seat -likely cylinder head
