How many sensors does a 1999 Saturn have

Question edited for typos.

Yes it does.

https://www.google.com/search?q=2001+Saturn+3.0.+Camshaft+sensor+location

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DTC P0340 Camshaft Position (CMP) Sensor Circuit . has single sensor . This is circuit problem , testing the electrical circuit's for the sensor before replacing the sensor should be done . Do you know how to test sensor circuit's ?

How To Diagnose Check Engine Light Code P0340 Cam Position Sensor

Camshaft Position (CMP) Sensor
Right side of the engine, above the timing chain cover, under the power steering pump

(1) Camshaft Position (CMP) Actuator Solenoid - Intake Bank 1
(2) Camshaft Position (CMP) Sensor - Intake Bank 1
(3) Camshaft Position (CMP) Sensor - Intake Bank 2
(4) Camshaft Position (CMP) Actuator Solenoid - Intake Bank 2
(5) Camshaft Position (CMP) Actuator Solenoid - Exhaust Bank 2
(6) Camshaft Position (CMP) Sensor - Exhaust Bank 2
(7) Generator
(8) A/C Compressor Clutch
(9) Camshaft Position (CMP) Actuator Solenoid - Exhaust Bank 1
(10) Camshaft Position (CMP) Sensor - Exhaust Bank 1

2006 Saturn Ion Camshaft position sensor location:
The camshaft position sensor is located in the top left side of the valve cover.

. This vehicle doesnt have a camshaft position sensor, it uses the crankshaft position

Hi there:
This vehicle doesnt have a camshaft position sensor, it uses the crankshaft position sensor .. image link HERE.

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If you have the 1.9 SOHC, you don't have one. If you are getting an error code for a bad camshaft sensor, you either have a bad spark plug wire (#1) or corrosion where the plug wires go to the coils.
Swap wires from cylinder 1 to cylinder 2, and see if the check engine light goes away. (This is common on the staurn) If it does, replace the wire set.

I think it's behind the motor inthe middle of the block. A crank sensor can set a cam code also.

There is no camshaft position sensor on a Saturn S-series. If you are throwing a code for P0340 about the camshaft position sensor circuit then there is a unusual way to go about it only because there is no sensor.

First thing is to check the plugs and wires. If anything replace everything since it will only cost about $15. The next step is to check the coils. I had this same problem a year ago and it turned out to be a bad ground. The grounding point are the bolts that bolt the coil packs to the ICM module (where the coil packs mount to). Clean the back of the heads of the bolts (there is probably some rust on there, get ALL of the rust off). Then bolt everything back on and see if the code disappears.

If that doesn't fix it then you should replace the coil packs next.

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