Throttle Position Sensor
... Reading the voltage across the inserted wire from the Position Sensor section, ensure the volt…
Reading the voltage across the inserted wire from the Position Sensor section, ensure the voltage is between 0.4V and 0.5V.
If any adjustments are made to get the position switch into the correct voltage range, repeat step 2 to ensure the hard idle switch is still showing ON with the throttle closed.
For your TPS to be set correctly, the following conditions must all be simultaneously true.
The throttle bodies should be closed all the way. Removing the intake pipes allows you to see if they are completely closed. With the throttle closed, you should be able to see a port (one on each throttle) on the bottom of the throttle chamber. These ports lead to vacuum nipples on the undersides of the throttle chambers. If the butterfly valve is slightly open, it usually obscures the ports.
Electric fans I have a 92TT and this past summer converted to a single pull electric fan with stock radiator. And…
Electric fans I have a 92TT and this past summer converted to a single pull electric fan with stock radiator. And while I believe I need a "pinch" more cooling it has worked satisfactorily in St Louis summer (so far). I found the mechanical fan to be noisy and power robbing. But before you do anything I suggest you employ a method to read exactly what the ECU is seeing. My factory gauge showed my car above halfway and it made me nervous on to find out from ECU Talk that my temp was 180. Installed a mechanical gauge and now my factory gauge will be at that visually high reading and the mechanical gauge hasnt even displayed a temp at all (mechanical gauge takes more time to read due to the "gas" within the wire to heat up and display).
Summary: get a method to read "actual" temp to manage your efforts to get where you want to be!
Electric fans Not a big lover of electric fans for the z32, and prefer a larger alloy rad and keep the stock visc…
Electric fans Not a big lover of electric fans for the z32, and prefer a larger alloy rad and keep the stock viscous fan unit. That said I think your over heat issue is more than just a rad change, no reason it should over heat when the ac is on. In fact you have another fan running at the front over the condenser, yes some heat soak may occur but it is designed that way.
I think you should check the viscous fan is still working correctly and that you have the correct thermostat fitted ( 76.5c ) and that it is working correctly before buying any thing else, the n/a has less heat issue`s than a twin turbo so it has to be one of the above that is at fault.