Location of the throttle position sensor on a 1999 saturn sl2

Here is a video showing how to change the knock sensor.

https://www.2carpros.com/questions/saturn-sl2-1999-saturn-sl2-how-to-change-a-knock-sensor

You will have crush sensors on the front core support and the diagnostic module with the inertia switch should be under the center console.

Have you checked the fuel injectors? Fuel filter? Fuel pump? Sounds to me like you have a fuel delivery problem.

Try the following: remove the airbox and spray some starter fluid into the throttle body while someone else cranks the motor. If it starts for a second and dies, then you KNOW you have a fuel delivery problem. If it doesn't change and still won't start, then the problem is either a bad sensor somewhere (crank position sensor, maybe?) or no compression.

first thing that comes to mind would be the throttle positioning sensor, or the mass air flow intake sensor on the air intake hose assembly.Symptoms of a mass airflow intake sensor would be very poor acceleration or engine dying when gas pedal is mashed hard. Throttle positioning sensor can give you and irradical idle while sitting still. You might want to have a scan to diagnose the problem.

Are you sure you replaced the TPS sensor? Throttle position sensor?

Absolutely if the TPS throttle position is out how can your EFI computer communicate with it if it is malfunctioning!!! Replace the throttle position switch and drive on

Sounds like throttle positioning sensor.

I HAVE A 98 SATURN, WON'T EVEN TRY TO START EVERY ONCE IN A WHILE. TURNS OUT TO BE THE CRANKSHAFT POSITION SENSOR

check your throttle positining sensor.