This overhead cam 3.0 Mitsubishi engine was used in many different Chrysler platforms. (Plymouth Acclaim, Chrysler LeBaron, Dodge Caravan, Chrysler Town and Country etc). The vehicle being tested is a 1990 Chrysler's TC by Maserati, which is really just a LeBaron with different tags on it.
Engine Performance Diagnostics chapter 18 pages 9-12
Symptoms
- check engine light (code 26)
- no driveability complaints
Fix
- replaced engine computer and all 6 fuel injectors
Tests shown
- how to scope test a pair fired injection system
- fuel injector current and voltage waveforms
- why amperage was so much higher during initial start up
- how to identify main computer powers and grounds on a wiring diagram
- how to test computer powers and grounds
- how to perform a proper ground to ground voltage drop test
- how to determine if you voltmeter has a good connection
Tools used
- scan tool
- Picoscope (labscope)
- digital multimeter
- inductive low amp probe
- back-probing tools
Playlist
- (Chapters 17, 18 and 19) Fuel Injector Testing
[ Ссылка ]
Related videos
- How to test for shorted fuel injectors (1987-1994 GM Cars)
[ Ссылка ]
- Lexus fuel injector failing when hot, misfire (fixed with snow)
[ Ссылка ]
- Rough idle, false MAP codes intermittent no start (shorted injectors) GM [ Ссылка ]
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 [ Ссылка ] 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!
Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.
