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The DFM system in LS engines aims to improve fuel efficiency by deactivating half of the engine’s cylinders during light load conditions
1994-2002 Powerstroke 7
2008-2010 Ford Powerstroke 6
WHY RESPONSE TIME MATTERS
NOTE: These switches are NOT intended for use with EFILive® tunes
AEM X-Series OBDII Wideband AFR Gauge Kit (30-0334) 2018 - 2021 Ford Additives & Oils The DFM system in LSAEM X Series OBDII Wideband AFR Gauge Kit (30 0334) AEM's X Series OBDII Wideband UEGO AFR Sensor Controller Gauge (PN 30 0334) provides tuners who are using piggyback tuning modules or open source software with the ability to view AFR through the factory CAN bus stream that is output by the factory ECU, and deliver the most accurate, safe and powerful tune. The 30 0334 X Series OBDII Wideband Gauge is validated to work with DiabloSport in Tune 3,