That is one possibility for that complaint
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.
it can cause the car not to start.
It is a part of the throttle body. You have to replace the throttle body if faulty.
Yes, my grand am had that problem a week ago, changed out the sensor and it runs like a champ!
I had a similar problem with a Toyota where it was sending the code for Throttle Position Senser I replaced it twice It ended up being the computer that was faulty [[Hope this will help
The throttle position sensor determines the amount of throttle used when the engine is running at various speeds. If the sensor is faulty, it can be replaced by ordering a new part.
faulty throttle position sensor?
PO122 indicates the throttle position sensor (TPS) is faulty
It happens in my grand cherokee. somone told me its a loose ball joint in your transmission. A: IF THIS CONDITIONS OCCURS WHEN THE ACCELERATOR IS IN ONE POSITION (STEADY THROTTLE) THE PROBLEM IS MOST LIKELY TO BE A DEFECTIVE THROTTLE POSITION SENSOR.
In a 1994 Ford E150 van, the overdrive feature is controlled primarily by the transmission control module (TCM) and the throttle position sensor. If your overdrive keeps kicking in and out, it could indicate an issue with the TCM, a malfunctioning throttle position sensor, or a problem with the transmission fluid level or condition. Additionally, a faulty vehicle speed sensor may also affect the overdrive operation. It's advisable to have the vehicle diagnosed by a professional to identify the exact cause.
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 a Mercury Topaz is revving while driving without shifting, it could indicate a problem with the transmission. Possible issues include low transmission fluid levels, a failing transmission, or a malfunctioning shift solenoid. Additionally, a faulty throttle position sensor or other engine-related issues could also affect shifting. It's advisable to have the vehicle diagnosed by a professional mechanic to identify and address the underlying problem.