C32 Misfiring Across all Cylinders??
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Junior Member
Joined: Jun 2016
Posts: 16
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2003 Magma Red C32 AMG, 2003 Silver C32 AMG
C32 Misfiring Across all Cylinders??
Greetings, one of my C32's is Misfiring? It's Misfired on every cylinder since checked 4 or 5 times.
First plug in (months of not being looked at):
All cylinders has a misfire code accept for cylinder 6. All times also threw P0300 (multi-cylinder misfire) besides the 3rd of course.
1st: cyl 1 & 4
CLEARED
2nd: cyl 1 & 4
CLEARED
3rd: cyl 1
CLEARED
4th: cyl 4, cyl 5, cyl 6, cyl 2
The previous owner said that that it started doing it after his "Eurocharged" tune. It only happens under hard acceleration.
Mods:
-Eurocharged Tune
-NeedsWings Cold Air Intake
-Resinator Delete
-185mm Main Pulley
-Larger Heat Exchanger
-Johnson cm30 Intercooler Pump
Any ideas??
First plug in (months of not being looked at):
All cylinders has a misfire code accept for cylinder 6. All times also threw P0300 (multi-cylinder misfire) besides the 3rd of course.
1st: cyl 1 & 4
CLEARED
2nd: cyl 1 & 4
CLEARED
3rd: cyl 1
CLEARED
4th: cyl 4, cyl 5, cyl 6, cyl 2
The previous owner said that that it started doing it after his "Eurocharged" tune. It only happens under hard acceleration.
Mods:
-Eurocharged Tune
-NeedsWings Cold Air Intake
-Resinator Delete
-185mm Main Pulley
-Larger Heat Exchanger
-Johnson cm30 Intercooler Pump
Any ideas??
Last edited by ImMax; Oct 4, 2016 at 08:15 PM.
Super Member
Joined: Jul 2014
Posts: 992
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From: Tucson, AZ
'20 X5 M50i; '17 Ram 3500; Golf Cart; Bikes; Scooters
Under high load it takes a lot of energy to make spark. You might have weak spark, which could be plugs, wires, coils, or ECU. I'd start with a fresh set of recommended plugs.
Super Member
Joined: Aug 2014
Posts: 636
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C32 amg
MBWorld Fanatic!
Joined: Jul 2007
Posts: 2,000
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From: East Bay, Bay Area
2002 C32, 2012 S550
yes, when you increase the boost, it can actually "blow out" the spark, thus the plugs need to be gapped closer. Sorry, I don't recall what mine were gapped at, it was so long ago that I had this issue.
Junior Member
Joined: Jan 2007
Posts: 32
Likes: 3
From: California
Mercedes Benz W203 AMG MOD,2016 Lexus GSF, 2006 Mercedes Benz E350, 2004 BMW 325i, 2016 Ducatti Mons
I had similar problems... You might want to start with checking your sparkplugs wires, coils. Also, check for any leakage (oil or air being blown off from the plenums). And last, you might have a Tuning issue. I would start with the first one...
