Withyour LS1 throttle completely at the closed position, you should read a signal voltage range between .5 to .9 Volts. This represents your base TPS voltage in your Chevy Corvette. Now manually deflect your LS1 throttle so that it's fully opened. Measure the Corvette TPS sensor signal with the throttle opened fully.

Thetrouble codes that are stored in the computer can tell a lot about what is actually going on. This makes diagnosing the throttle body much easier. P0121- Throttle position sensor "A" circuit range/performance is the most likely code you'll experience if your van has a throttle body issue. Rough or Unstable Idle, Stalling
Pooror High Idle. When your throttle body is operating below its normal effectiveness, one of the tell-tale signs is a poor or low idle. This includes stalling after coming to a stop, a low idle after starting, or stalling when the throttle is pressed down rapidly. Dirt causes airflow into the system to be turbulent and leads to a fluctuating
Itcould be faulty wiring leading to the TP sensor. To check whether your vehicle's TP sensor is faulty, you're going to need to check it with a multimeter. The TP sensor is typically mounted on the throttle body and is connected to the throttle body with screws. The sensor also has a plug and connectors protruding from its side.
Oryour Throttle Position Sensor: The Toyota 22R-E and 3VZ-E engines are electronically fuel injected. As such they lack a mechanical carburetor and instead split the function of the carburetor into three parts, namely the Air Flow Meter in the air cleaner box, the throttle body and the fuel injector. The air flow meter uses a flapper vane and Thethrottle position sensor (TPS) detects the position of your throttle and sends this along to the car's computer. If the sensor's mechanical parts become worn, then bad data is submitted, causing the computer to make incorrect decisions and, in turn, leading to poor fuel economy and other issues, some of which could mimic problems with the fuel delivery system. DODGECHARGER CODE P0222 P0223 THROTTLE POSITION SENSOR B, CHECK ENGINE LIGHT Dodge Parts here: More Specific Parts Bellow If you h Thelast positional test of your 2JZ throttle position sensor is to take a feeler gauge and widen the gap between the throttle blade stop and the throttle blade to 0.45mm. With the throttle blade closed and the bump stop adjusted to 0.45mm, measure the resistance between PIN 1 and PIN 2, you should see 0 - 2.3 KΩ with the correct clearance.

1 Place your multimeter in Volts DC mode and with the red multimeter test lead probe the DK BLU wire of the sensor's connector. 2. Ground the black multimeter test lead on the battery negative (-) terminal. Have your helper turn the key ON, but don't start the engine (this will power up the TP sensor). 3.

Expert 147 Answers. This is a picture of your throttle position sensor. It is located on the throttle body, where the air inlet tube enters the intake manifold. Simply unplug the wires, remove the bolts holding it in place, and replace it with the new unit. Hope this helps!

Step1. Pull trouble codes. Using a scan tool, read all the trouble codes present in the car's ECU memory. Make sure the vehicle is in ignition key on, engine off (KOEO). If you see any throttle position sensor code, proceed to the next step. It will almost always come with the Check Engine Light (CEL). Step 2.

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    • how do you know when your tps sensor is bad