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The coolant temp sensor usually causes that problem. Double check the connections to it as well as ~ 1 foot deeper in the wire harness down stream. There are bullet connectors that can corrode in the harness. Also make sure the connectors to the coolant temp sensor are not mixed up with another sensor.

I had the same problem a few years ago on a 98 rav4. I managed to get a rod from a used Nissan Z clutch master that worked fine. Many common Japanese car parts are interchangeable between vehicles as the manufacturer is usually not the brand on the car.

Drugs + John + Paul + George + Ringo + Recording Studio + the 60's =

Who would place a head on its valves on concrete floor? Good Grief! Avoid this notorious seller. He abuses parts before he ships... guaranteed! Want a head with bent valves? Buy this one: https://www.ebay.com/itm/Datsun-Z-240Z-260Z-280Z-ZX-Rebuilt-E88-Cylinder-Engine-Motor-Head-OEM-w-Warranty/152905724162?hash=item2399e43102:g:11AAAOSwHQ9WVe7D&vxp=mtr

For rev limiting, I have witnessed three causes: 1. The EFI system has a false Idle signal from the TVS due to a short. The ECU thinks that the foot is off the pedal and will not flow gas above ~2800rpm 2. The ignition system has a fault. I'm my case, a points distributor was the cause. The power died under load at high rpms as if there was a fuel cut-off. 3. Weak fuel pressure. Weak fuel pressure is not an issue with no load (revving in neutral) but under load on the road, there will not be sufficient fuel to power the car beyond a certain rpm X load point.

If the EFI system checks OK and fuel pressure is OK then it is possible the injectors may have been swapped with larger ones from a turbo for example. Please try to read any numbers on the injectors and report back.

Nope, I'll have to video it for you doubting Thomas' (Tomi?)