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There's many sensor, O2 sensors, (Palet type ) Airflow sensor, Throttle body position sensor. Knock sensor and probably much more for brake, speedo and transmission.
The possibilities can be many. It can range from a malfunctuioning fuel pump, to a bad throttle position sensor, to faulty fuel injectors. First I would check the throttle position sensor since this is the cheapest part, and also the easiest to replace. The throttle position sensor tells the computer how much air and fuel to put in the engine. If it is messed up it can cause hesitation, stalling, transmission buckoing, etc...
If the TPI (throttle position sensor) is bad, you will have a fault code set in the computer. To check it, with a scope, graph the signal while opening/closing the throttle. The signal should be a smooth wave, if there are any dips, the sensor should be replaced. The contact can wear in the position the blades are at during normally driving, especially if you many due highway constant speed driving.
there are two wires
Many possibles. fuel pump? mass air flow sensor? Vaccum leak? timing issues? Engine Mechanical? Throttle Position Sensor? plugged conveter? or somthing else
4 wires, the black ones are the O2 heater (on the sensor side), the white and green are the O2 sensor itself
1. Engine Coolant temp sensor 2. Throttle Position sensor 3. Intake air temp sensor (IAT) 4. Manifold Absolute pressure sensor (MAP) 5. Knock sensor 6. Vehicle Speed sensor 7. Crankshaft Position sensor 8. Camshaft Position sensor 9. 02 sensor upstream 10. 02 sensor downstream 11. Vapor canister Leak detector These are only in the engine compartment. All that I could find in the wiring diagram. 11 just for the engine by my count, but I could have missed a couple.
Check Throttle Position Sensor. (if you have one) Could also be a misfire so check the plugs, wires, and coils. Check it at night too, so you can see any spark. Could also be a fould injector (if you have injectors) It could be so many more things. Need more info
There are many sensors, need to know what year, make, model and which sensor is in question.
There are many sensors in that vehicle. We need to know which sensor.
On crankshaft position sensor, one camshaft position sensor.
a bad throttle position sensor, or dirty throttle plate , plugged fuel injector, clogged fuel filter....is engine light on? Don"t overlook any vacum[hose,intake gasket,or connections]. Sometimes engine wiring connection [added and original connection]. I have found many problems with small guage [16-20] wires with fault spots because of rubbing at wire tie off's.Also check any wire location where added accesories come into present wires.