What do you mean by "they crap themselves"? You would need to be very unfortunate to keep replacing a crap fan with an equally crap fan. What makes you say all your fans had crapped themselves?
I have money on the thermostat. In my old Z, I had a situation where the temp was fine up to 100kph. As soon as I got onto a 110 kph stretch, the temp started rising. The thermostat wasn't opening fully to allow proper coolant circulation.
All I can say is - if you can hear knock, then it's too late.
If a human ear picks it up better than an electronic ear, why on earth do manufacturers bother fitting knock sensors?
If you are in Melbourne, I have a not-quite-matched pair of Stratos seats. They are a left and right pair, just very slightly different head-restraints.
I'll take $350 for the pair.
Have you adjusted the TPS correctly. If it is "off", it won't send a "throttle closed" signal to the ECU, and the engine will idle fast.
Have you adjusted the AAC correctly?
Have you had the injectors cleaned?
Don't understand about the diagnostics test. Nissan are the ones who will have the diagnostics tool - you don't need one. I might be able to recommend someone, but they might not be in the same area as you.
It will ground direct to the chassis.
If the lights still work even with the switches disconnected, then there is a wire somewhere else (probably near the interior light) that is grounding the circuit.
Just remembered- sometimes there are 2 keys, 1 works IGN and boot, the other only works IGN. You leave the second key with the car when you leave it somewhere (mechanic, etc), and, with the valet lock, no-one can steal stuff from the boot.
One of the things I mentioned in your other thread is that there is a matching half-moon key, for the CAS, on the end of the exhaust cam. Is that still there?
If you line up the markings on the crank gear and the markings on the cam wheels with their corresponding reference marks, the crank pulley has to line up correctly. You may have the wrong pulley, or the woodruff keys that force the pulley to align correctly, are MIA.
It should only take 2 revolutions of the crank before all the marks (on the crank and on the cam wheels) are aligned with their reference marks.
While the switch is out, press the button - does the interior light go out?
Use a multimeter to test power to the switch and earth from the switch. Test for continuity thru the switch, open and closed.
Do you know the 25 head is definitely different to the 20 head? Just that my old 20 head was "woofed" - only 30 thou, but no-one would touch it.
So you're welcome to that one if you want it.
The shaft of the CAS has to be in the correct orientation to mate with the half-moon key on the end of the exhaust cam.
I have run a RB25DET CAS in a RB20DET without any problems.
That test should confirm the CAS working correctly.
Wheel alignment should have been done by setting the steering wheel "straight ahead", then aligning wheels. With the steering wheel off-centre, you risk upsetting HICAS, which will think you are in a constant turn.
Take it back and get it adjusted properly.