{youtube}jsl531-6q-A|615|345|0{/youtube}
2001 Dodge Grand Caravan 3.3 with a #5 injector control wire shorted to ground. This is a common issue on the Caravan and Town and Country models. The wire harness right above the exhaust crossover pipe will melt together and cause multiple problems. MAP sensor codes, injector codes, TPS and IAT codes etc. This problem can also damage the computer ground circuit as well as any other sensors on the 5v reference circuit. (Injector control voltage will spike into the sensor ground circuit of the computer).
Engine Performance Diagnostics chapter 18 pages 3-10
- P0205 trouble code (Injector 5 control circuit fires improperly)
- hard staring (long crank time)
- start/stall
- excessive fuel consumption
- poor gas mileage
- white smoke from tailpipe
- fuel odor
- low power
- misfire
- repair melted computer harness connector near exhaust manifold crossover pipe (common problem)
- how to test a fuel injector
- how to test for a short to ground on a fuel injector
- how to test for injector control
- scan tool
- lab scope
- digital multimeter
- test light
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{accordionfaq faqid=accordion15 faqclass="dotluvfaq help2 aligncenter headerbackground headerborder contentbackground contentborder round7" active=item0}Playlist
(Chapters 17, 18 and 19) Fuel Injector Testing
Related videos:
How to test a fuel injector circuit with basic tools:
{youtube}kQUtAs-VrDY|615|345|0{/youtube}
Lexus Fuel injector failing when hot, misfire (fixed with snow):
{youtube}b8ww7lMMpZ8|615|345|0{/youtube}
How to test a fuel injector (open winding case study) Nissan:
{youtube}mmRhcVkJdeQ|615|345|0{/youtube}
Stuck Closed Fuel Injector (how to fix) GM:
{youtube}NXrd1fYwj1o|615|345|0{/youtube}
end faq
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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!