E55 lost power
Thread Starter
Member
Joined: Feb 2010
Posts: 77
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From: New Zealand
2012 E63 Bi Turbo
E55 lost power
Fellow owner has lost all power, can only accelerate slowly to 30mph car dies above this speed and wont accelerate at all, starts missing. Also has rattle from under car that goes away at cruise. No problems at idle.
Have done search for symptoms but no joy.
O2 sensors gone bad and no signal to ECU....?
Not blowing smoke or anything unusual.
Have done search for symptoms but no joy.
O2 sensors gone bad and no signal to ECU....?
Not blowing smoke or anything unusual.
Thread Starter
Member
Joined: Feb 2010
Posts: 77
Likes: 0
From: New Zealand
2012 E63 Bi Turbo
E55 lost power
Greetings all,
tests show cats/o2 sensors appear fine but a host of codes posted.
P2007
B28 (pressure sensor)
P0303
P0305
P0301
P0300
p2050
P2051
P2052
P2056
Most of these relate to misfiring cylinders 1,3, and 5
Any ideas please ?
tests show cats/o2 sensors appear fine but a host of codes posted.
P2007
B28 (pressure sensor)
P0303
P0305
P0301
P0300
p2050
P2051
P2052
P2056
Most of these relate to misfiring cylinders 1,3, and 5
Any ideas please ?
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A Merc
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03 E55 AMG, 06 Harley Road King Custom 06 Ram 2500 Cummins, 97 Firebird Race Car, 88 Cutlass Supreme
Could be a dieing fuel pump/clogged filter.
Has enough pressure/volume to idle, but put it under a load and it calls for more fuel and doesn't get it = misfire. Check fuel pressure, also while under load/misfiring.
A rattle under the car would make me think cats though. You sure those aren't falling apart inside? Get it in the air and bang on the cats with your hand and listen for anything in there moving around. Could be clogging up the exhaust from coming apart. Also watch for any white/greyish debris coming from the exhaust.
Has enough pressure/volume to idle, but put it under a load and it calls for more fuel and doesn't get it = misfire. Check fuel pressure, also while under load/misfiring.
A rattle under the car would make me think cats though. You sure those aren't falling apart inside? Get it in the air and bang on the cats with your hand and listen for anything in there moving around. Could be clogging up the exhaust from coming apart. Also watch for any white/greyish debris coming from the exhaust.
Last edited by BBBSS; Jun 7, 2012 at 10:44 PM.
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From: Chicagoland
AMG
Is it RPM related? I ask because if you keep the shift points low vs high and do an acceleration test, wouldnt it be very easy to see if it was fuel related? youd thinkif it was a fuel issue, then going to a lower rpm would allow you to faster? Just my newbie opinion, correct me if im wrong
Thread Starter
Member
Joined: Feb 2010
Posts: 77
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From: New Zealand
2012 E63 Bi Turbo
After checking out all the obvious faults they went back to the original thought (thanks Desired Speeds ) and found that the cats were fried.
You guys think prices are bad in the US, a stealership here wanted 13800 USD for the replacement cat set.
Can we do away with the rear pair and only replace the front pair , thereby having a straight pipe to the rear mufflers ?
Thanks for the ideas and help.
P.S.The plugs were bad also.
You guys think prices are bad in the US, a stealership here wanted 13800 USD for the replacement cat set.
Can we do away with the rear pair and only replace the front pair , thereby having a straight pipe to the rear mufflers ?
Thanks for the ideas and help.
P.S.The plugs were bad also.
Thread Starter
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Joined: Feb 2010
Posts: 77
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From: New Zealand
2012 E63 Bi Turbo
Buddys car is an 03 and I doubt there would be any point in approaching the dealer here even though the car is NZ new.
We will speak with an exhaust specialist and look to doing away with them (cats) altogether as suggested.
He has a basic tune and regularly runs the car at the top end of the speed range so he may well see an improvement in performance.
We will speak with an exhaust specialist and look to doing away with them (cats) altogether as suggested.
He has a basic tune and regularly runs the car at the top end of the speed range so he may well see an improvement in performance.
Thread Starter
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Joined: Feb 2010
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From: New Zealand
2012 E63 Bi Turbo
Can anyone assist with o2 sensors and aftermarket cats ??
Planning to replace the front cats with aftermarket EUROCAT supposedly designed for European cars and delete the secondary pair altogether.
Will this aftermarket CAT cause any code issues if we keep both sets of O2 sensors. ?
Is a cross pipe or X pipe necessary to replace secondary cats ?
Thanks for the help so far.
Planning to replace the front cats with aftermarket EUROCAT supposedly designed for European cars and delete the secondary pair altogether.
Will this aftermarket CAT cause any code issues if we keep both sets of O2 sensors. ?
Is a cross pipe or X pipe necessary to replace secondary cats ?
Thanks for the help so far.
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'06 E55
