ChuckF
Conflicting 2B22 Code: Misfire or Throttle Body Issue?
Summary of the thread
A 2011 BMW X5 50i is experiencing issues such as an unsteady engine, jerking during acceleration, and a check engine light, with a 2B22 code indicating multiple misfires related to the fuel management system. The code suggests a throttle body actuator issue on bank 2, but conflicting freeze frame data shows a potential problem with the high-pressure fuel pump on bank 1. Suggested solutions include inspecting and cleaning the throttle body actuator on bank 2, checking the high-pressure fuel pump and fuel injectors, and verifying fuel pressure with a mechanical gauge to ensure accurate readings.
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5 comment(s)
ChuckF (community.author)
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Start by inspecting the throttle body actuator on bank 2 for any signs of damage or malfunction, as the 2B22 code suggests. Clean the throttle body to ensure it's not sticking due to carbon buildup. If the issue persists, consider checking the high-pressure fuel pump and fuel injectors for proper operation, as they can also cause misfires and jerking. Let us know how it goes or if you have further questions!
Thank you, I will give that a whirl first. It is strange because also it gives the freezeframe for the high pressure fuel pumps, the bank 1 hpfp reading 0. I guess it is a glitch in the app. The information given is completely (I assume) unrelated to the code given. Wrong bank even. Do you think that the bank 1 hpfp is actually at 0 pressure?
CarlyMechanic
community_quotation:
community_author_wrote_on
Thank you, I will give that a whirl first. It is strange because also it gives the freezeframe for the high pressure fuel pumps, the bank 1 hpfp reading 0. I guess it is a glitch in the app. The information given is completely (I assume) unrelated to the code given. Wrong bank even. Do you think that the bank 1 hpfp is actually at 0 pressure?
It's possible that the reading of 0 pressure on bank 1 could indicate an issue with the high-pressure fuel pump or a sensor malfunction. To verify, you can manually check the fuel pressure using a mechanical gauge to ensure accurate readings. If the pressure is indeed at 0, it could be a sign of a failing pump or a blockage in the fuel line. Addressing this promptly is important, as it can affect engine performance and safety. Let us know what you find or if you have more questions!
MacDaz
Hello, My CARLY indicates the code 002DD6 (VALVETRONIC short circuit or open circuit) on my 2011 BMW 135i E82. Could you tell me the diagnostic steps before a possible replacement of the VALVETRONIC? Thank you in advance for your reply. Sincerely, Nicolas.
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CarlyMechanic
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community_author_wrote_on
Hello, My CARLY indicates the code 002DD6 (VALVETRONIC short circuit or open circuit) on my 2011 BMW 135i E82. Could you tell me the diagnostic steps before a possible replacement of the VALVETRONIC? Thank you in advance for your reply. Sincerely, Nicolas.
Start by checking the wiring and connectors related to the VALVETRONIC system for any signs of damage, corrosion, or loose connections. Ensure all connections are secure and intact. If the wiring appears fine, you can test the VALVETRONIC motor with a multimeter to check for continuity, which can help identify if there's an open or short circuit. If you need further assistance, feel free to ask!
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X5
CarlyMechanic
Start by inspecting the throttle body actuator on bank 2 for any signs of damage or malfunction, as the 2B22 code suggests. Clean the throttle body to ensure it's not sticking due to carbon buildup. If the issue persists, consider checking the high-pressure fuel pump and fuel injectors for proper operation, as they can also cause misfires and jerking. Let us know how it goes or if you have further questions!