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is pcm different from ecm

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my nissan 2004 quest is coming up with code po102. po113 after replacing the ecm with brand new one,
is ecm different from pcm

Vehicle: 2004 quest

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they are the same thing, Japenese cars mainly use the name ECM and ECU and American cars for PCM.

P0102 and P0113 are for the Mass air flow sensor. Have you replace the sensor? if so the wiring needs to be checked.

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