How to replace the throttle controller

The throttle controller uses data to open and close the throttle. Common failure symptoms include poor performance, stalling, and rough idle.

Most modern cars do not have a traditional throttle cable. Instead, they use what is called an electronic throttle controller, or throttle actuator control. This system usually consists of a control module, sensors (such as a throttle position sensor and an accelerator position sensor), and a throttle actuator. The control module receives data from these sensors. It then uses this information to determine actuator control to open and close the throttle. Common symptoms of a bad throttle controller include poor performance, rough idle, engine stall, and a check engine light that is on.

Part 1 of 2: Removing the Throttle Controller

Necessary materials

• Brake cleaner
• Free Repair Manuals - Autozone provides free online repair manuals for certain makes and models.
• Protective gloves
• Ratchet and sockets of the right size
• Throttle Controller Replacement
• Safety glasses
• Screwdrivers

Step 1: Locate the throttle controller. The throttle control is located at the top of the engine between the air intake and intake manifold.

• Attention: Some throttle controllers need to be initialized with an OEM level scan tool after replacement. Before replacing, check the factory repair information for your vehicle.

Step 2: Disconnect the negative battery cable. Disconnect the negative battery cable and set it aside.

Step 3: Remove the air intake tube. Loosen the clamps at each end of the air sampling pipe with a screwdriver. Then move the air intake tube.

• Attention: In some cases, hoses and electrical connectors may be connected to the air intake pipe, which must also be removed.

Step 4: Disconnect the throttle controller electrical connector(s).. Remove the throttle controller electrical connectors by pressing the tab and pulling it out. In some cases, the connectors may also have tabs that need to be pryed off with a small flat head screwdriver.

Step 5: Remove the throttle body bolts.. Using a ratchet, remove the bolts securing the throttle body to the intake manifold.

Step 6: Remove Throttle Controller. Remove the throttle controller from the vehicle.

Step 7: Remove the throttle controller gasket.. Carefully remove the throttle controller gasket by prying it out with a small screwdriver. Clean remaining gasket material with brake cleaner applied to a rag.

Part 2 of 2: Installing a New Throttle Controller

Step 1: Install a new throttle controller gasket.. Install a new gasket and install the new throttle controller in place.

Step 2: Install the throttle body bolts.. Install the throttle body bolts by hand one at a time. Then tighten them with a ratchet.

Step 3: Replace electrical connectors.. Install the connectors the same way you removed them.

Step 4. Replace the air sampling tube.. Insert the tube into place and tighten the clamps with a screwdriver.

Step 5: Connect the negative battery cable.. Reconnect the negative battery cable and tighten it.

Here's what it takes to replace the throttle controller. If you feel like this is a task you'd rather leave to a professional, AvtoTachki offers a qualified throttle controller replacement anytime, anywhere you choose.