From what I have found there are no post with this P Code (1754) if anyone has been through this with the dealer please e-mail me or PM me and let me know your out come. From what I have found this is the diagnosis.

DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION

Input clutch solenoid valve is controlled by the TCM in response to signals sent from the PNP switch, vehicle
speed sensor and accelerator pedal position sensor (throttle position sensor). Gears will then be
shifted to the optimum position.

This is not only caused by electrical malfunction (circuits open or shorted) but also by mechanical malfunction
such as control valve sticking, improper solenoid valve operation.
On Board Diagnosis Logic ACS000L5

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “I/C SOLENOID FNCTN” with CONSULT-II or P1754 without CONSULT-II is
detected under the following conditions.
– When TCM detects that actual gear ratio is irregular, and relation between gear position and condition of
pressure switch 3 is irregular during depressing accelerator pedal. (Other than during shift change)
– When TCM detects that relation between gear position and condition of pressure switch 3 is irregular during
releasing accelerator pedal. (Other than during shift change)
Possible Cause ACS000L6

Harness or connectors
(The solenoid and switch circuits are open or shorted.)

Input clutch solenoid valve

Pressure switch 3
DTC Confirmation Procedure ACS000L7
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF”
and wait at least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine.
2. Accelerate vehicle to maintain the following condition.
ACCELE POSI: 1.5/8 - 2.0/8
Selector lever: “D” position
Gear position: 3rd
4th Gear (I/C ON/OFF)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. Perform step “2” again.
4. Turn ignition switch “OFF”, then perform step “1” to “3” again.
5. Check “SELF-DIAG RESULTS” mode for “A/T” with CONSULTII.
If DTC (P1754) is detected, refer to AT-124, "Diagnostic Procedure" .
If DTC (P1752) is detected, go to AT-122, "Diagnostic Procedure" .
If DTC (P1843) is detected, go to AT-147, "Diagnostic Procedure" .
WITH GST
Follow the procedure “With CONSULT-II”.
SAT014K
AT-124
DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION
Diagnostic Procedure ACS000L9
1. INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” or “MAIN SIGNALS” in “DATA
MONITOR” mode for “A/T” with CONSULT-II.
3. Drive vehicle in the “D” position (3rd
4th gear), and confirm
the ON/OFF actuation of the “ATF PRES SW 3”.
With GST
Follow the procedure “With CONSULT-II”.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK TCM
Perform TCM input/output signal inspection. Refer to AT-72, "TCM Input/Output Signal Reference Values" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING ITEM
Check the following items:

Power supply and ground circuit for TCM.

The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transmission assembly. Refer to AT-188, "Removal and Installation" .
NG >> Repair or replace damaged parts.
4. CHECK DTC
Perform DTC Confirmation Procedure.

Refer to AT-123, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.

Found at http://www.nissansource.com/doug/350...@20350Z/at.pdf

If I'm understanding this correctly this could get nasty with the Tranny replacement being most extreme. Please any help would be great.

OOHH yea the car is totally stock (Wife's Ride)

Thanks
Brad
Hopper_Brad@Yahoo.com

 

I take it your Z is auto?

 

Yeap the wife's car.

I took the PDF print out from that web site I quoted, test drove it seemed shifting fine. Brought the car home and disconnected the battery let it sit for a while then reconnected. P Code gone car diving as well as it did when we drove it off the lot. Thats the wife baby glad its running ok for now.


Brad