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Stan, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3526
Experience:  Technical support engineer
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Put new Maf sensor in Vito bosh after having new injectors

Customer Question

Put new Maf sensor in Vito bosh after having new injectors fitted it keep coming up with fault code p01 101 checked wireing because it said open circuit put another Maf in just in case first one faulty still the same after clearing p01 101
Submitted: 2 years ago.
Category: Mercedes
Expert:  Shantal-Mod replied 2 years ago.
I'm Shantal and I'm a moderator for this topic.
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Customer: replied 2 years ago.
Still waiting for answer thanks
Expert:  Shantal-Mod replied 2 years ago.
Thank you for getting back to me and apologies that you have not received an answer yet. We have a range of Professionals online all the time. However specialties differ, and we are searching for the right professional to assist you.
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Expert:  Stan replied 2 years ago.
The P0101 code is a generic faulte code, which is read out with universal scantools.
If the codes are read out with Star Diagnosis or other scanners with MB specific database- fault cause will be more clear.
After replacing the MAF sensor, the recalibration in the engine control unit must be done. It might be that the fault code comes up due to uncalibrated new MAF sensors. this calibration is required even when the air filter is replaced
I suggest to have the fault codes checked with Star Diagnosis computer and calibration carried out first of all. Some independent MB shops have this tool besides authorised dealers. Then it will be clear if there is any problem actually present.

Best regards,