7 or 8
The IAT intake air temperature sensor plug on a 93 Nissan is on the intake pipe. The EGR sensor is located on the intake manifold.
The knock sensor on a 1990 Nissan 240SX is located on the engine block, specifically on the left side near the rear, typically below the intake manifold. It is positioned to detect engine vibrations and send signals to the ECU for ignition timing adjustments. To access it, you may need to remove the intake manifold or other components for better visibility and reach.
On the 1989-1990 240sx with the KA24E single overhead cam engine the E.C.C.S. is located on the top left side of the engine behind the throttle body and on top of the intake manifold.
under the intake manifold in the oil seperator
In a 1991 Nissan 240SX, the Positive Crankcase Ventilation (PCV) valve is located on the engine's valve cover. It's typically found near the back of the engine, connected to a hose that leads to the intake manifold. To access it, you may need to remove any components obstructing your view or reach.
installed on the air cleaner
crankshaft-camshaft timing, clogged exhaust, plugged intake, intake manifold leak.
you have to take the throttle body support bracket loose. it is under the bottom mounted to the engine. you cannot remove it otherwise. I know as i did the same.
it's located on the passenger side, on the rear of the intake manifold facing the strut tower.
Look on the left side of the valve cover by the intake manifold and you will see the injectors and the rail.
>>"What type of valves does a 1989 Nissan 240SX have?" what exactly are you asking? the factory motor for the 240sx's, years '89-'90, is the KA24E, single cam, 2.4 liters, 12 valve. It has two intake valves, and one output valve.
The EGR temperature sensor is located in the intake manifold between cylinders 3 and 4