Hesitation and idle problems from a bad TPS (OBD1 Eclipse)

In this video I’ll show how to retrieve trouble codes from an OBD-I vehicle, a 1991 Eagle Talon (which is a Mitsubishi Eclipse), and how to test a throttle position sensor with a graphing multimeter. The TPS testing shown will also work on all three-wire potentiometers, and can be applied to any vehicle. The code retrieval procedure shown is make/model specific, so consult your service information for your application. Engine Performance Diagnostics chapter 7 Symptoms - intermittent check engine light illumination - hesitation on acceleration - surging idle Fix - replace faulty throttle position sensor Tests shown - retrieving trouble codes manually from an OBD-I vehicle - using a graphing multimeter during trouble code retrieval - how to test a 3-wire potentiometer without a wiring diagram (all types) - performing a TPS ‘sweep test’ using a graphing multimeter - using heat and vibration to expose electrical faults Tools used - graphing multimeter Playlist - (Chapter 7) Potentiometer-position sensor tests TPS, EVP, APP, VAF etc https://www.youtube.com/playlist?list=PLAFYVCyenqcoHHRsegwvlLd0MYKazby99 Related videos - How to test TPS wiring with a scan tool (any car) https://youtu.be/VhyNp7IsfQM - How to test throttle position sensor wiring with a resistor (any car) https://youtu.be/oZiroWQRgEc - Throttle Position Sensor test (voltmeter and scope) https://youtu.be/8KfKfImoIXg - How to test a throttle position sensor (P0121, P0122) GM wiring integrity https://youtu.be/h17kYyFrExE For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium right here on YouTube. There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!

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How to Test a Throttle Position Sensor (TPS) - With or Without a Wiring Diagram
Here is a video on how to test a throttle position sensor with a basic multimeter, I also show you how to do this without a wiring diagram. Multimeter used in this Video: http://amzn.to/2aWpN8E If you liked this video you may find these other videos useful as well: Should you replace the head gasket or transmission: http://youtu.be/sqB7HwkjwUU How to Test an ABS Sensor: http://youtu.be/fAdMPh9UvC0 How a turbo Charger Works: http://youtu.be/D0PpUrVozjw How to test an O2 Sensor: http://youtu.be/NKsS6AELPuM How to diagnose and fix no heat issues: http://youtu.be/eai_tFzltLc How to test an alternator: http://youtu.be/5DdCNzge_s0 How to Test a Car Battery: http://youtu.be/Km6MNRYeEEY How to Find a Parasitic Draw: http://youtu.be/eXX8TfzRAKk How to Replace an Alternator: http://youtu.be/VaquYn944aU If this video helped you out please don't forget to subscribe, give it a thumbs up or if you are feeling generous leaving a tip by clicking the " i " button on the top left corner of the screen. Thank you very much for your support! Disclaimer: Due to factors beyond the control of Ratchetsand Wrenches, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Ratchetsand Wrenches assumes no liability for any property or personal damage that may arise from doing a repair on your vehicle after watching any of my repair video's. Due to factors beyond the control of Ratchetsand Wrenches, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Again Any injury, damage or loss that may result from improper use of tools, equipment, or the information contained in this video is the sole responsibility of the user and not Ratchetsand Wrenches.





MAP Sensor Code P0106 caused by a dirty throttle body
In this video I’ll show you how to use scan data and service information to diagnose a P0106 MAP/BARO Pressure Circuit Out of Range code on a 2005 Chevrolet Trailblazer. Reading and understanding the code information, as well as the Snap-On Troubleshooter, were key in repairing this fault. I also demonstrate how to safely clean an electronic throttle body, a very common feature on modern vehicles of all makes. This false MAP sensor trouble code caused by a dirty throttle body in not unique to the Trailblazer. I have also seen this problem with other model GM vehicles as well. Engine Performance Diagnostics chapter 20 pages 2 - 4, 12-14 Symptoms - check engine light - possible low idle, stalling Fix - cleaning and relearning the electronic throttle body Tests shown - using service information and flow charts to understand PCM code set criteria and diagnostic strategies - using scan data to identify a dirty electronic throttle body - inspecting and cleaning an electronic throttle body - causes of a false MAP sensor trouble code Tools used - scan tool - shop rag and carburetor/intake cleaner Playlist - (Chapter 20) Idle Speed Problems and Testing https://www.youtube.com/playlist?list=PLAFYVCyenqcrqC1WhVE1LTzQSn4mbMjdu Related videos - Chapter 20 “Idle Speed Controls - preview (an SD Premium video) https://youtu.be/DYmW3W_E1KQ - P0506 IAC System RPM below expected (vacuum leak) - Ford https://youtu.be/Sqpelz3aTNQ - False mass air flow/idle control system codes - vacuum leak - Pontiac https://youtu.be/1Ea0Sjx_ZXE - How to test an idle air control valve (IAC) using a Picoscope - Ford https://youtu.be/WoFt3uzQd44 For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium right here on YouTube. There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!





tps gone bad sputters
How to tell if your tps has has gone bad mine was doing it at about 1800 rpm hope this helps someone





How to test TPS wiring with a scan tool (any car)
To test a sensor circuit for an open or shorted wire, a manufacturer will have you use an ohmmeter. Ohm testing always involves isolating the circuit in test, meaning you must disconnect the computer and sensor for accurate measurements. This is a ridiculous method to confirm wiring integrity. (too time consuming) In this video I will show you how to test the integrity of a TPS signal wire with just a scan tool and a paper clip. These procedures can be followed for any other potentiometer or pressure sensor circuit on any car. As an added safety, to protect the 5v reference circuit from a shorted sensor signal wire, use a 1k to 5k ohm resistor instead of a paper clip. Tools: - scan tool - digital multimeter - jumper wire Related videos: - How to test throttle position sensor wiring https://youtu.be/oZiroWQRgEc - Power Steering Pressure Sensor Test (P0550) https://youtu.be/WLLxcfC-zeQ - How to troubleshoot an EVAP Pressure Sensor (P0452) https://youtu.be/CkgrMasd57s - Ford 4-wire MAF sensor wiring tests (integrity testing) https://youtu.be/ejh_ZCntFkE - How to test a throttle position sensor (P0121) - wiring integrity https://youtu.be/h17kYyFrExE For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium right here on YouTube. There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere! Playlist: - (Chapter 7) Potentiometer-position sensor tests TPS, EVP, APP, VAF etc https://www.youtube.com/playlist?list=PLAFYVCyenqcoHHRsegwvlLd0MYKazby99




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