M112 misfire

Merrill

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2005 - C320 - m112 e32
Looking for any input on what I can do to troubleshoot. Was driving, 53mph and 2k rpms engine started to misfire, ran codes and this is all the information the scanner gave me.

P0300 - random misfire
P0335 - crankshaft position sensor A circuit
P0306 - cylinder 6 misfire
P0303 - cylinder 3 misfire
P0304 - cylinder 4 misfire

Fuel sys 1 - CL
fuel sys 2 - CL
calc load - 64.7%
Ect - 180°
Stft b1 - 2.3 %
Ltft b1 - -0.8%
STFT B2 - 8.6%
LTFT B2 - 0.0%
MAP - 25 inHG
Eng rpm - 2025
Veh speed - 53 mph
Spark adv - 0.0°
IAT - 72°
MAF - 19.05 lb/min
TPS - 18.0%
Air status - off

Wondering where to begin?
 

LostKiwi

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Crank position sensor.
It's a known issue and you have a code for it.
 
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Merrill

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Crank position sensor.
It's a known issue and you have a code for it.
Yeah, is it as simple as replacing the sensor? Sorry if I should like a dingleberry or am asking a stupid question, to be completely honest i dont really know wtf I'm doing...
 

LostKiwi

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Yes it is. Single torx bolt to remove and if you're lucky the sensor will pull out. They can get stuck and if so can be a right pita to remove. Not the easiest place to get to.

Only use Bosch or MB sensors - cheap ones are trouble.
 
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Merrill

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Yes it is. Single torx bolt to remove and if you're lucky the sensor will pull out. They can get stuck and if so can be a right pita to remove. Not the easiest place to get to.

Only use Bosch or MB sensors - cheap ones are trouble.
Sweet! Thank you for the reply!
 

alexanderfoti

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Yes, as above ++
 


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