Hello, Our 2007 Nissan Versa with CVT is having issues "shifting" and accelerating that seem to occur irregularly. Upon attempted acceleration at highway speeds (60 mph) engine RPM can increase to 5-6k without any acceleration (power) to increase speed.
Obvious concerns are decreased gas mileage and excessive wear with possible damage to transmission.
Diagnostic codes detected include: P0720 Vehicle Speed Sensor, Output Speed Sensor Circuit Malfunction P1705 Short in Transmission Range Switch Circuit P1701 Transmission Control Module Power Supply P1574 ASCD Vehicle Speed Sensor P1715 Input Speed Sensor Primary Speed Sensor
Should also mention that at one point speedometer and tachometer dropped to zero while driving. So...bad cluster potentially?
Any thoughts? Surely not all of these sensors need replacement? Possible that one is the culprit for all or that a transmission fluid change could fix?
Thank you!
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