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Throttle position sensor out of range.
Throttle Position sensor out of range
Trouble code P1120 means: Throttle Position Sensor A Out Of Range Low (Ratch too low)
code po121 means Throttle Position Sensor/Switch A Circuit Range/Performance Problem . it is usually indicative of a faulty throttle position sensor or faulty wiring harness in the engine bay.
A Throttle Position Sensor (TPS) reports to the ECM how open the throttle is. The signal is sent as voltage to the ECM, and the amount of voltage reports how open the throttle is. The throttle is what allows gasoline to get to the engine, and in a car that is the gas pedal. We would think fo the value as 0% to 100% and any range between.
P0121 - Throttle Pedal Sensor Switch "A" Circuit Range/Performance. Most common fix is to replace the Throttle position sensor.
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...
According to my factory service manual the throttle position sensor voltage on a Chevrolet Celebrity should be between 0.5 V and 5.0 volts as it moves through its range of motion.
P0121 Throttle/Pedal Position Sensor A Circuit Range/Performance IvryJade writes: Yes, but how do I fix it?
ANSWER: Need make, model and year to be able to tell you how to reset the throtle position.
p0405 EGR position sensor input below the minimum acceptable voltage range (shorted low) *Clean or replace the EGR *Replace the DPFE *Clean the throttle body *Clean the MAF - use electrical contact cleaner and be gentle
PO336---Crankshaft Position Sensor A CKT Range/performance