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Cx5 misfire on cylinder 1 never goes away

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Old Apr 10, 2025 | 02:47 PM
  #11  
Lobstah's Avatar
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Yeah, I believe the codes for that are P0300 to P0308 but don't hold me to it.
He states he was getting a "P0301" but nowhere does he mention he replaced or checked the fuel injector.
And as you said injectors that old, are generally far from optimal anyway.
 
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Old Apr 11, 2025 | 06:45 PM
  #12  
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It was a bad high pressure fuel pump. Thanks
 
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Old Apr 14, 2025 | 12:31 PM
  #13  
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That'll do it
Glad you are all set.
 
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Old Apr 14, 2025 | 12:56 PM
  #14  
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This is a great example of a P0301, P030? etc., can have no less then 10 parts or components that can cause an ECU to generate the P0301 DTC. And if it is a P0300 then it can be dozens or more?
This also goes with many other DTCs as well. DTC's are only a tool to the process to testing and elimination .
 

Last edited by Callisto; Apr 14, 2025 at 01:04 PM.
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