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P1391= "Glow Plug Circuit Low Input (Bank #1)"
Hmmm... That's for a diesel engine?!?
P1406= "Exhaust Gas Recirculation (EGR) Position Sensor Performance"
That's an easy fix. Remove, clean or replace the differential pressure sensor for your vacuum actuated EGR valve. Or maybe the EGR valve itself is stuck, clogged or has a pinhole leak in the vac diaphragm.
G/luck
Joel
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2016 Subaru Forester 2.5i base CVT
2016 Nissan Quest SV
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