Lack of Power / Engine Codes
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2014 C63 Amg
Lack of Power / Engine Codes
Recently Purchased a 2014 C63 Amg coupe with 106,000 miles.
The car has a huge lack of power. It sounds aggressive but acceleration is not there, more similar to a regular c300. When I first purchased the vehicle it had an engine light but everything seemed fine. I drove it home and at highway speeds the engine light started to flash and the high rpms felt like the engine was shaking all over the place. I pulled over, let it cool down and had no issues besides the sluggish power driving back.
Anyways codes:
P0300
P228f
P0306
P2187
P0171
Current solutions i am thinking:
Replace all 4 O2 sensors
Replace all spark plugsReplace intake manifold gasketReplace crankcase vent valveReplace purge valveLiqui Moly lifter
Oil changeFilter changeLiqui Moly Cerakote & anti friction treatment Does this list seem reasonable or am I doing to much/little?
The car has a huge lack of power. It sounds aggressive but acceleration is not there, more similar to a regular c300. When I first purchased the vehicle it had an engine light but everything seemed fine. I drove it home and at highway speeds the engine light started to flash and the high rpms felt like the engine was shaking all over the place. I pulled over, let it cool down and had no issues besides the sluggish power driving back.
Anyways codes:
P0300
P228f
P0306
P2187
P0171
Current solutions i am thinking:
Replace all 4 O2 sensors
Replace all spark plugsReplace intake manifold gasketReplace crankcase vent valveReplace purge valveLiqui Moly lifter
Oil changeFilter changeLiqui Moly Cerakote & anti friction treatment Does this list seem reasonable or am I doing to much/little?
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2010 C63 AMG
Flashing means misfire if it has specific cylinder codes move the coil from that cylinder to another abs see if it continues if it does that's your culprit. All the stuff you listed is fine it's all tuneup stuff that should be done at some point anyways
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2014 C63 Amg
Swapped 5 and 6 coil. Still coming up with the same CEL codes.
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'10 C63
Did you look up what the codes mean? Most are misfire, lean, and fuel pressure codes. There are so many things that could be wrong. At that age, you might need injectors AND fuel pumps. Were the plugs changed on time?
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2014 C63 Amg
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2014 C63 Amg
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2014 C63 Amg
Alright update....
Switched out all o2 sensors. Ran some Liqui through the engine. I was able to turn off the engine light now.
BUT it came back on after turning the car on after driving. I am now getting only two confirmed codes
Random misfire
AndP228F - fuel pressure regulator 1 learning exceeded.
Switched out all o2 sensors. Ran some Liqui through the engine. I was able to turn off the engine light now.
BUT it came back on after turning the car on after driving. I am now getting only two confirmed codes
Random misfire
AndP228F - fuel pressure regulator 1 learning exceeded.
Last edited by HelloFriends; Apr 6, 2022 at 09:47 PM.
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2007 Mercedes E63 AMG
is your engine and computer stock factory original or have you modified anything?
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2014 C63 Amg
Took the car to an import mechanic. He switched out the plugs and diagnosed that it needed a new fuel pump. I put in a new fuel pump last week, engine light gone. Everything was working.
Today while driving the engine light came back on.
Ugghh
Today while driving the engine light came back on.
Ugghh
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'10 C63
Which fuel pump did you replace? There are 2 pumps and a sending unit. I can’t remember what is on what side. I think the pumps are on the passenger side and the sender is on the drivers? What code did it throw this time?
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2014 C63 Amg
As far as codes now I'm getting
P2187P0171
