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om651.924 W212 DTC P0101FD Restricted Power Only when warm
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30-09-2025, 11:15 AM,
Post: #1
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om651.924 W212 DTC P0101FD Restricted Power Only when warm
Hi Guys,
I got DTC P0101FD Mass Air Flow sensor 1 has a malfunction... Maf Sensor has been changed elsewhere and i've put original Maf back in but same performance. When cold full power and boost after driving high speed a few mins car limits power with P0101FD code sometimes EML other times no eml just restricted power. Smoke tested and can't see any leaks... Reset HFM Drift compensation and tried adaptation.. Tried Test plan to adapt maf sensor and failed with a control deviation in the intake or charge air system was detected... Live data when the issue is present is showing high value for on/off ratio of exhaust gas recirculation and exhaust back pressure is reading high. Please see attached pictures and any assi5тдnce in fїжing this. Thank you |
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30-09-2025, 17:36 PM,
Post: #2
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RE: om651.924 W212 DTC P0101FD Restricted Power Only when warm
I'd bet on a problem with the exhaust gas recirculation system.
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| Reputation: +1 - al70 [+1] | |||
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![[+]](https://cartechnology.co.uk/images/CarTechnologyTheCure/collapse_collapsed.png)
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30-09-2025, 17:52 PM,
Post: #3
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RE: om651.924 W212 DTC P0101FD Restricted Power Only when warm
Aspire dateline='[url=tel:1759230915' Wrote: 1759230915[/url]'] Hi Guys, I got DTC P0101FD Mass Air Flow sensor 1 has a malfunction... Maf Sensor has been changed elsewhere and i've put original Maf back in but same performance. When cold full power and boost after driving high speed a few mins car limits power with P0101FD code sometimes EML other times no eml just restricted power. Smoke tested and can't see any leaks... Reset HFM Drift compensation and tried adaptation.. Tried Test plan to adapt maf sensor and failed with a control deviation in the intake or charge air system was detected... Live data when the issue is present is showing high value for on/off ratio of exhaust gas recirculation and exhaust back pressure is reading high. Please see attached pictures and any assi5тдnce in fїжing this. Thank you Hello mate,
On OM651s, I’ve seen at least half a dozen cases where cleaning/replacing the exhaust back pressure sensor and tube immediately cleared P0101FD after people had been chasing MAFs and intakes for weeks. GOOOOO!!! |
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| Reputation: +1 - al70 [+1] | |||
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