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Re: P1391 and P1392 CEL
I believe the G sensor was put into place on some earlier models to 'disregard' rough road, off road induced misfiring. Basically if the truck is bouncing all over the place, the computer system will ignore a misfire. Misfiring normally is detected by the crank position sensor (CPS detects the 'blips' in crank rotation caused my misfire), so these two sensors work kind of hand in hand. The CPS is usually around the crank pulley/harmonic balancer, dunno where the G sensor is. Helms manual would be the palce to go.
G/luck
Joel
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2016 Subaru Forester 2.5i base CVT
2016 Nissan Quest SV
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