Ankle Joint Anatomy Pdf, Marthoma Sandhya Namaskaram, How To Make A Red Burlap Poinsettia Wreath, What Does Fennel Taste Like, 2012 Honda Accord Coupe Interior, Uninstall Cassandra Centos, " /> Ankle Joint Anatomy Pdf, Marthoma Sandhya Namaskaram, How To Make A Red Burlap Poinsettia Wreath, What Does Fennel Taste Like, 2012 Honda Accord Coupe Interior, Uninstall Cassandra Centos, " />

how to test a throttle body

NOTE: All multimeter connections are done on the male spade terminals of the electronic throttle body itself. Disconnect the throttle body from its electrical connector. Tools  |   Connect one multimeter test lead to terminal A and the other to terminal G. NOTE: All connection are done on the male terminals of the connector of the throttle body itself. Throttle Actuator Control (TAC) module. The carbon will build up and cause problems with the throttle flap shutting correctly. Follow the fuel line to the housing mounted over the block of the engine. As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. Drive it around a bit so the engine is warm. This makes diagnosing the throttle body much easier. You can find this tutorial in Spanish here: Cómo Probar El Cuerpo Del Acelerador Electrónico (2002-2007 4.2L Chevrolet TrailBlazer) (at: autotecnico-online.com). Turn the car off again, and interpret the codes sent to the scanner. A Typical Throttle Body . Don't worry, once you get to the site, they'll make sure it fits. Is it possible the Throttle Body could be causing the other two be intermittent? Connect one multimeter test lead to terminal B and the other to terminal D. NOTE: All connection are done on the male terminals of the connector of the throttle body itself. Turn on the car, and let it warm up. You notice a lack of power or poor engine performance: An engine needs air and fuel to make power. Resist the urge to press on the gas when it begins to buck and fail. Throttle Body Test-4150 vs 4500 (Mast 427 LS3) As is evident by the power curves, the Mast-headed 427 LS3 was in dire need of additional flow. Allow the scanner to read the car computer and confirm whether the problem lies with the throttle body sensor. Throttle body. If you're using a digital multimeter you're going to see the letters OL displayed on your multimeter's screen. Both of these terminals belong to TPS 1 circuit within the electronic throttle body. This tutorial will explain how to test the electronic throttle body on the 2002-2007 4.2L Chevrolet TrailBlazer and GMC Envoy. Put your car keys back in the car ignition, and turn it to the "On" position. Since 2009 Tom Lutzenberger has written for various websites, covering topics ranging from finance to automotive history. Ford  |   The following links will help you comparison shop for the electronic throttle body for the 2003, 2004, 2005, 2006, and 2007 4.2L Chevrolet TrailBlazer Or 4.2L GMC Envoy: Not sure if the electronic throttle body will fit your particular GM vehicle? Electronic Throttle Body Tests (2002-2007 4.2L Chevrolet TrailBlazer), Symptoms Of A Bad Electronic Throttle Body, Electronic Throttle Body Terminal Pin Out Chart, Where To Buy The Electronic Throttle Body And Save, TEST 1: TPS 1 Resistance Test (Part 1 Of 2), TEST 2: TPS 1 Resistance Test (Part 2 Of 2), TEST 3: TPS 2 Resistance Test (Part 1 Of 2), TEST 4: TPS 2 Resistance Test (Part 2 Of 2), Cómo Probar El Cuerpo Del Acelerador Electrónico (2002-2007 4.2L Chevrolet TrailBlazer). So, the absolute best way to find out if the TPS has failed on your Nissan is by manually testing the TP sensor with a multimeter (while it's still on the throttle body and connected to its electrical connector). And Accelerator Pedal Assembly. You'll be able to find out if TPS 1 or TPS 2 is defective or not. This tutorial will explain how to test the electronic throttle body on the 2002-2007 4.2L Chevrolet TrailBlazer and GMC Envoy. If it doesn't, they'll find you the right one. NOTE: This tutorial applies to the 2002, 2003, 2004, 2005, 2006, and 2007 4.2L Chevrolet TrailBlazer or 4.2L GMC Envoy only. In addition to keeping fuel flow to the engine restricted to only what it actually needs, the throttle body also houses sensors telling the car computer how the fuel-air mixture is working. The throttle position sensors within the throttle body are tasked with informing the fuel injection computer of the throttle plate angle. The trouble codes that are stored in the computer can tell a lot about what is actually going on. In this section, we'll focus on the Electronic Throttle Body. You'll be able to find out if TPS 1 or TPS 2 is defective or not. Honda  |   After connecting everything, start your engine and test for the new throttle body; Throttle Body Replacement Cost. We're getting 0.81 volts fully closed, so that's good. Connect PicoScope Channel A. to the throttle position sensor signal circuit. As you have probably already observed, there are 8 wires sticking out of the Electronic Throttle Body. Since the electronic throttle body is a critical component of the engine's management system, when one of its throttle position sensors fail you'll see one or more of the following trouble codes. The device attached to the throttle body with the wires running to the engine control unit --- ECU --- is the throttle position sensor. TEST 1: Testing The Throttle Position Sensor Voltage Signal. Start the engine and allow it … The largest component of the throttle body, which regulates the airflow, is the throttle plate. Plug in your OBD-II scanner to the connection. If you’ve replaced your GM electronic throttle body or you’ve disconnected the battery, you must do a GM throttle body relearn to establish a new baseline idle. Listen to the car operate to determine whether the engine is struggling to maintain a constant idle (rpm will fluctuate in idle). To measure the throttle position voltage check between the brown wire and the black/white striped wire on the TPS with the TPS still connected and the key on. Connect one of the test leads to the center connector, the computer output connector, and the other lead to either the +12 volt or … 1. The check engine light is one of the most common symptoms of a bad throttle body in your Patriot. We'll also test the throttle actuator motor. The throttle body in car a provides one of the modern features found in today's cars to help with fuel efficiency. Reach underneath the steering wheel, and open up the OBD connection panel. GM throttle body relearn procedure How to do a GM throttle body relearn procedure. Poor-quality gas will contribute to a dirty throttle body. Terminal G is the terminal that receives 5 Volts from the fuel injection computer. Lower the idle if necessary by manually adjusting the throttle cable if your car has one. With this test result you can conclude that the electronic throttle body needs to be replaced. Turn off the car when the "Check Engine" light comes on if it happens before the car dies. At this point I have gotten about 3 K Ohms from a good TPS 1. Jeep  |   You may need to run the scanner test more than once. Use the data from the scanner confirming the problem lies in the throttle assembly, and take the car to a mechanic. Terminal C is the terminal that receives Ground from your Chevy Trailblazer or GMC Envoy's fuel injection computer. I checked the Ross Tech Wiki on the actual codes, so i have an idea what is wrong, but is there a specific test where you can check the throttle body alone? Copyright 2020 Leaf Group Ltd. / Leaf Group Media, "Popular Mechanics"; Cleaning Throttle Bodies; Mike Allen; 2001, Minimopar: Idle Problems On Fuel Injected Engines, Volvo Club UK: Engine Tune and Performance. Connect the red multimeter test lead to terminal C. Connect the black multimeter test lead to terminal G. Your multimeter should read continuity. His education includes a Bachelor of Arts in English and political science from Saint Mary's College and a Master of Business Administration in finance and marketing from California State University, Sacramento. Your check engine light is on: In an ETC system, the control module constantly monitors throttle body performance. Lutzenberger works in public finance and policy and consults on a variety of analytical services. The average replacement cost of the throttle body is between $480 and $710. CASE 1: The multimeter registered continuity between terminals C and G. This is the correct test result. Have the mechanic clean the throttle body to remove all burned carbon residue and dirt in the assembly. Put your car keys back in the car ignition, and turn it to the "On" position. The throttle position sensor is a power resistor located on the throttle body, and it carries out the function it has the purpose of feeding data to your engine control unit despite the level at which the throttle valve is open. 2. What we're looking for is to make sure that this circuit hasn't suffered an open-circuit or short-circuit problem. The trouble codes that are stored in the computer can tell a lot about what is actually going on. NOTE: You can find the TAC system wiring diagram here: If you need to test the APP sensor assembly (2002-2003 TrailBlazer and Envoy only), you can find the tutorial here: How To Test APP Sensor 1 And 2 (2002-2003 4.2L Chevrolet TrailBlazer). The TPS is mounted on the throttle body and converts the throttle valve angle into an electrical signal. In some instances, the electric signal is disrupted, whether due to a loose electrical wire, a relay control issue, or damage done to a sensor. As you're probably already aware, the electronic throttle body is made up of three components. Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem! All Rights Reserved. All of the tests in this tutorial are done on the connector of the throttle body itself and this connector has male spade terminals. A simple multimeter will suffice and in this article I'll take you thru' the whole diagnostic process step by step. Terms of Use These are TPS 1, TPS 2, and the throttle actuator motor (for the sake of our testing discussion I'm leaving out the throttle plate).

Ankle Joint Anatomy Pdf, Marthoma Sandhya Namaskaram, How To Make A Red Burlap Poinsettia Wreath, What Does Fennel Taste Like, 2012 Honda Accord Coupe Interior, Uninstall Cassandra Centos,