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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
- check engine light (code 26)
- no driveability complaints
- replaced engine computer and all 6 fuel injectors
- 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
- scan tool
- Picoscope (labscope)
- digital multimeter
- inductive low amp probe
- back-probing tools
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(Chapters 17, 18 and 19) Fuel Injector Testing
Related videos:
How to test for shorted fuel injectors (1987-1994 GM Cars):
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Lexus fuel injector failing when hot, misfire (fixed with snow):
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Rough idle, false MAP codes intermittent no start (shorted injectors) GM :
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For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available as an eBook or paper book.
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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!