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Curtis B.
Curtis B., Technician
Category: Industrial Equipment
Satisfied Customers: 704
Experience:  Technican turned service manager on multiple lines of equipment used in industry.
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We have a NISSAN MPLO2A25LV giving ERROR E21 - air flow

Customer Question

We have a NISSAN MPLO2A25LV giving ERROR E21 - air flow sensor error. Unit still operates, but is very sluggish. Also saw a loose wire (purple insulation covered by black insulation) which comes from the wiring harness that runs to the coil packs on the battery side of the machine. It is about 12 inches long and looks like it could reach over to the ECM. Not sure if this is related
Submitted: 1 year ago.
Category: Industrial Equipment
Expert:  Bradley Martin replied 1 year ago.

How does the wires look at the mass air flow sensor? Check the connection