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HELP!! Has anyone ever received these codes or have any idea what would cause them ?

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Old Apr 6, 2021 | 04:35 PM
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anthony02tolson's Avatar
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Mercedes AMG C63s
HELP!! Has anyone ever received these codes or have any idea what would cause them ?

Well after noticing a slight vibration on acceleration a few times I finally received a check engine light. Here’s what the scanner picked up. I’m totally lost lol anyone ever get these ?

Mercedes OBD read



Generic obd read
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Old Apr 6, 2021 | 07:42 PM
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LessIsMore's Avatar
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It sounds like it may be related to overfilling. Did you possibly over fill the gas tank before you got this message? If you clear them do the codes stay gone?
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Old Apr 6, 2021 | 08:44 PM
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No it was at a half tank. I thought I possibly had a misfire and was expecting a misfire code. These have me babbled.
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Old Apr 6, 2021 | 08:57 PM
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Your air/fuel ratio is off, so either the engine isn't getting enough air or not enough fuel, or too much fuel, or a sensor is reading incorrectly. Googling some common causes brought up the following. I suppose I would add faulty injectors to that list.
  • Inadequate engine compression
  • Defective oxygen sensor/s
  • Faulty CKP or CMP sensor
  • Burnt, chafed, broken, or disconnected wiring and/or connectors
  • A faulty mass air flow or manifold air pressure sensor
  • Bad fuel pump or clogged fuel filter

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Old Apr 6, 2021 | 09:42 PM
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Originally Posted by superswiss
Your air/fuel ratio is off, so either the engine isn't getting enough air or not enough fuel, or too much fuel, or a sensor is reading incorrectly. Googling some common causes brought up the following. I suppose I would add faulty injectors to that list.
  • Inadequate engine compression
  • Defective oxygen sensor/s
  • Faulty CKP or CMP sensor
  • Burnt, chafed, broken, or disconnected wiring and/or connectors
  • A faulty mass air flow or manifold air pressure sensor
  • Bad fuel pump or clogged fuel filter

appreciate it. Looks like I’m going to have bite the bullet and take it to a specialist.
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