Limp Stillen Supercharger dtc p1239

wymoteeZ

This is my Therapy post.
I've been battling this intermittent problem over a month.
I will personally strangle the original, overpaid developer of 'Limp Mode'.
please, nissan, just throw the code --> don't kill me.
(I love my Z) Lucky for me ... it is my weekend ride.
Yesterday, I went for a test drive after the engine-bay switch of the MAF cables (and successful idle-air-volume relearns after warm-up). I was trying to get home after it Faulted the same code. Basically, I-20 freeway cruising. It went limp, & I had to pull over in the EXACT same place that I have had to before. What the heck? I was looking for power lines, UFO's, CIA ?? Of course, I've driven past there several times without issue. It's a MIND thing.
Last night, going to get a new Battery (for Grins) ... I caught myself, in the TRUCK, driving in the right lane, in case I went Limp.

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GTM STAGE II TT, EXTERNAL WASTEGATES, FI 3" TDX, BLITZ EBC, SZ HIGH 5, FI 500E FUEL RETURN, WALBRO 525, ID1050, ZEIT FLEXFUEL E85, SD TUNED with ECUTEK by SEB, SZ HIGH 5 CLUTCH, 2014 NISMO GUNMETAL WHEELS, 2015 NISMO FRONT, REAR, & SIDE SKIRTS