P0121 Description The throttle position sensor responds to the accelerator pedal movement.This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module ().In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.

P0121 Diagnostic Theory for Shops and Technicians. When diagnosing a P0121 code, it is important to record the freeze frame information and then to duplicate the code setting conditions with a test drive while paying close attention to engine load, Mass Air Flow grams per second, RPM, and road speed on a data streaming scan tool.

P0121 CHEVROLET Meaning The throttle position sensor responds to the accelerator pedal movement.This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module ().In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.

In this video I'm going to talk about how to repair a dirty throttle body that's throwing engine code p0121 step by step. Hope y'all enjoy this video. Beware...

P0121 is a somewhat common trouble code with the Chevy Silverado. It's an OBDII code and has to do with the Throttle Pedal Position Sensor. It is relatively serious problem since it leaves your vehicle in failsafe mode. P0121: Throttle Pedal Position Sensor → Switch (TPS) A Circuit Range → Performance Problem ...

OBD2 Code P0121 Definition: The Throttle position sensor is a potentiometer that measures the amount of throttle opening. As the throttle is opened, the reading (measured in volts) goes up. The powertrain control module (PCM) supplies a 5 Volt reference signal to the throttle position sensor (TPS) and usually a ground also.

Code P0122 is triggered when your vehicle's Engine Control Module (ECM) detects that your Throttle Position Sensor (TPS) circuit A is reporting an output voltage that is below its expected voltage. Depending on your vehicle, your TPS lower output voltage limit should be around .17 to .20 volts, and if the ECM detects that it has dipped below ...

Do you have a 2007-2008 Chevy Avalanche, Silverado or GMC Sierra and are experiencing an illuminated check engine light and stored code P0121 and possibly a ...

P0121 HYUNDAI Description The throttle position sensor responds to the accelerator pedal movement.This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module ().In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.

A code P0121 may mean that one or more of the following has happened: TPS has intermittent open or short internally Harness is rubbing and causing an open or short in the wiring Bad connection at the TPS Bad PCM (less likely) Water or corrosion in connector or sensor .

P0121 code definition. Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem. What the P0121 code means. P0121 is a generic OBD-II code which indicates that the Engine ...

P0121 — Throttle Position Sensor "A" Circuit Range Performance Problem: What It Means. A fuel-injected engine has a throttle position sensor (TPS) near the butterfly of the throttle body. The TPS's job is to inform the PCM of the exact position of the throttle at all times.

Deleting the P0121 from the VW Tiguan. Having put everything back together, it was time to go back to VCDS and delete the P0121 code from the Tiguan. By the way, you don't need VCDS to do this job. It's a great piece of kit for detailed diagnostics and repairs, but for this any standard OBD2 code reader would have been sufficient.

P0121 code. Jump to Latest Follow 1 - 10 of 10 Posts. P. PROCRAFT1 · Registered. Joined Mar 7, 2010 · 34 Posts . Discussion Starter • #1 • Dec 28, 2012. I was driving home today. ...

P0121 - GM; Type: Powertrain - Fuel and Air Metering - ISO/SAE Controlled: Description: TP Sensor Performance Conditions. Cause: No MAP or TP sensor codes set, engine running, ECT input over 158°F, MAP input under 50 kPa or over 70 kPa, MAP input steady, and PCM detected the Actual TP input was over the Calculated TP input with MAP input under 50 kPa, or was below the Calculated MAP input ...

P0122 code on A 2007 Dodge Ram 1500 5.7L Hemi I have a P0122 code indicating a low voltage on the accelerator position sensor. This is a new code after installing the following parts. ECM, TIPM, crankcase sensor, camshaft sensor, ignition switch, the list goes on. I have replaced ALL associated parts including a new accelerator pedal just insta...

OBD2 Code P0121 Cadillac definition: The Throttle position sensor is a potentiometer that measures the amount of throttle opening. As the throttle is opened, the reading (measured in volts) goes up. The powertrain control module (PCM) supplies a 5 Volt reference signal to the throttle position sensor (TPS) and usually a ground also. A general ...

P0101 code definition Mass Airflow (MAF) Circuit Operating Range or Performance Problem The P0101 code can often be associated with a P0100, P0102, P0103 and P0104 codes. What the P0101 code means P0101 is the general code for...

P0121 Engine Trouble Code. Meaning of P0121 engine trouble code is a kind of powertrain trouble code and P0121 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can.

Code: P0121 Definition: Throttle / Pedal Position Sensor / Switch A Circuit Range / Performance Description: This DTC sets when the PCM indicates the electronic throttle control (ETC) throttle position (TP) sensor 1 circuit is out of range in either the closed or wide open throttle (WOT) modes.

NOTE: Code P0221 is only relevant to "drive-by-wire" systems in which there are no physical connections, such as throttle cables, between the accelerator pedal and the throttle plate/body. In some applications, there may be additional sensors and devices fitted to act as back-ups should a primary component or sensor fail.

OBD2 Code P0121 Porsche definition: The Throttle position sensor is a potentiometer that measures the amount of throttle opening. As the throttle is opened, the reading (measured in volts) goes up. The powertrain control module (PCM) supplies a 5 Volt reference signal to the throttle position sensor (TPS) and usually a ground also. A general ...

BMW M3 P0121 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual.