Nissan 370Z Forum - Car will not start after tuning

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- - Car will not start after tuning (http://www.the370z.com/engine-drivetrain/135878-car-will-not-start-after-tuning.html)

Quote:

Originally Posted by ShadowJester6 (Post 4004344)

Also after receiving the car from Nissan, the gear indicator on the dash no longer works and you can no longer turn on sport mode/rev matching.

In my opinion, this is a hint. S-mode requires the following inputs to be good:
• cam/crank signals
• clutch pedal / clutch interlock
• gear lever position sensor
• Input shaft speed sensor from transmission
• vehicle speed from gauge cluster

I would verify and/or re-verify those signals.

If I understand the starting circuit as well as I think I do, once the Starter Relay gets the signal from the BCM and actuates the issue must be on the IPDM E/R.

So replacing/troubleshooting the IPDM E/R seems like a logical step to me.

M/T : System Description INFOID:0000000011735111
• When the clutch interlock switch is turned ON, power is supplied to starter relay and starter control relay.
And BCM and IPDM E/R (CPU) detect clutch interlock switch condition by the inputted signal.
• When starter operating condition is satisfied, IPDM E/R turns starter control relay ON by starter control relay
control signal.
• When engine cranking condition is satisfied, BCM turns starter relay ON by starter relay control signal.
• Then battery power is supplied to starter motor (“S” terminal) through starter control relay and starter relay.
And IPDM E/R (CPU) detect starter relay condition by the inputted signal.

Since you have mentioned that you have B26E8 I would suggest triple-checking that.

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