ML63 Random Misfire all cylinders
Thread Starter
Newbie
Joined: Jul 2021
Posts: 14
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From: Lusaka, Zambia
Ml63
ML63 Random Misfire all cylinders
My 2007 ML63 M156 engine is down with random misfire code code P0300, other codes include:
P0191- fuel rail pressure sensor circuit range/ performance
P0304-cylinder 4 misfire
P0301-cylinder 1 misfire
P0302-cylinder 2 misfire
P0307-cylinder 7 misfire
Basically there are misfire codes for all cylinders
there is a code P0661 not sure what its for..
I also noticed when i start the car it shakes terribly and the driver side exhaust blows out cold air only (Right hand drive).
I have since changed the spark plugs, swapped out the coils, even checked the timing of the cams and still get the misfires..
anyone to point me in the right direction
P0191- fuel rail pressure sensor circuit range/ performance
P0304-cylinder 4 misfire
P0301-cylinder 1 misfire
P0302-cylinder 2 misfire
P0307-cylinder 7 misfire
Basically there are misfire codes for all cylinders
there is a code P0661 not sure what its for..
I also noticed when i start the car it shakes terribly and the driver side exhaust blows out cold air only (Right hand drive).
I have since changed the spark plugs, swapped out the coils, even checked the timing of the cams and still get the misfires..
anyone to point me in the right direction
MBWorld Fanatic!
Joined: Apr 2015
Posts: 1,217
Likes: 147
2012 c63 AMG, 2011 GLK 350, 2019 GLS 450
My 2007 ML63 M156 engine is down with random misfire code code P0300, other codes include:
P0191- fuel rail pressure sensor circuit range/ performance
P0304-cylinder 4 misfire
P0301-cylinder 1 misfire
P0302-cylinder 2 misfire
P0307-cylinder 7 misfire
Basically there are misfire codes for all cylinders
there is a code P0661 not sure what its for..
I also noticed when i start the car it shakes terribly and the driver side exhaust blows out cold air only (Right hand drive).
I have since changed the spark plugs, swapped out the coils, even checked the timing of the cams and still get the misfires..
anyone to point me in the right direction
P0191- fuel rail pressure sensor circuit range/ performance
P0304-cylinder 4 misfire
P0301-cylinder 1 misfire
P0302-cylinder 2 misfire
P0307-cylinder 7 misfire
Basically there are misfire codes for all cylinders
there is a code P0661 not sure what its for..
I also noticed when i start the car it shakes terribly and the driver side exhaust blows out cold air only (Right hand drive).
I have since changed the spark plugs, swapped out the coils, even checked the timing of the cams and still get the misfires..
anyone to point me in the right direction
I would start with the fuel pressure potential issue first. Check your rail pressures. For me when I have had the same issue a fresh set of primary o2 sensors fixed the problem but I have headers. Common issue.
Thread Starter
Newbie
Joined: Jul 2021
Posts: 14
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From: Lusaka, Zambia
Ml63
did you have any error codes to show that your O2 sensors had gone out?.
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2007 Mercedes E63 AMG
if it's not the ignition coils it's the oxygen sensors. replace both of they're up in age.
