Automotive Diagnosis: Cars Repair &Training Guides

GDI Injectors vs Port Injectors Diagnostic | GDi & MPi Injectors Waveform with Oscilloscope

🎯 In this video I explain how to diagnose GDi and MPi Injectors using an oscilloscope. I explain how to set up the oscilloscope on two different cars with different fuel injection systems, one with MPi (Multipoint Fuel Injection) and the second one with GDi (Gasoline Direct Fuel Injection). The waveforms on these two fuel systems are completely different, so it's very important to know how we can read the waveforms and how to analyze them to be able to diagnose the injectors. This video was made on a KIA Rio 2012 (for GDI Injector) and Suzuki Alto 2011 (For MPI Injector), and oscilloscope I used was MICSIG ATO1004. Note: Please not that the waveform on the GDi injector in this video on the low-side of the wiring is showing the NO Injection timing, the high side is the same all the time though. So if waveform on the low side of the injector is the same as high-side, injector is not injecting, if it's different, it's injecting, a new video is coming up soon to explain the high-side, low side and current waveform all together. ~~~~~~ 🎯 Online Courses: 🧑‍🎓 Automotive Engine Sensors Intro, Operation & Diagnosis: https://fix-it-first.com.au/course/automotive-engine-sensors-intro-operation-diagnostic-2/ 🧑‍🎓Automotive Engine Actuators Intro, Operation & Diagnostic: https://fix-it-first.com.au/course/automotive-engine-actuators-intro-operation-diagnostic/ 🧑‍🎓 Smart Key System (Push Button Start) Operation & Diagnostic: https://fix-it-first.com.au/course/smart-key-system-operation-diagnostic-in-any-kia-hyundai/ 🧑‍🎓 Automotive Diagnostic with Oscilloscope: https://fix-it-first.com.au/course/how-to-use-an-oscilloscope-for-automotive-diagnostics/ 🧑‍🎓 CAN-Bus Network Intro, Application & Diagnostic: https://fix-it-first.com.au/course/automotive-can-bus-network-intro-application-diagnosis/ 🧑‍🎓 Automotive LIN-Bus & K-Line Inro, Application & Diagnosis https://fix-it-first.com.au/course/automotive-lin-bus-k-line-intro-application-diagnosis/ 🧑‍🎓 Tire Pressure Monitoring System Intro, Operation & Diagnosis: https://fix-it-first.com.au/course/tire-pressure-monitoring-systems-tpms/ ~~~~~ Support Us (Donation): https://donate.stripe.com/14A8wP0F1gjk3cFcHa04800 ~~~~~ Diagnostic Tools I usually use in my videos: 🎯Fnirsi Cheapest Budget Oscilloscope & Signal Generator: Amazon US: https://amzn.to/4lj9pj2 Official Website: https://www.fnirsi.com/products/dso-153?sca_ref=8503519.AG2X0jFzf4 🎯Fnirsi Tablet 2-Channel Scope & Signal Generator: Amazon US: https://amzn.to/4mrK4nP https://www.fnirsi.com/products/dpos350p?sca_ref=8503519.AG2X0jFzf4 🎯 Fnirsi Smart Digital Multimeter (DMT-99): Amazon US: https://amzn.to/4oiPnHY Official Website: https://www.fnirsi.com/products/dmt-99?sca_ref=8503519.AG2X0jFzf4 🎯 Thinkscan 689BT Bidirectional Scan Tool with "Lifetime Free Update": Amazon US: https://amzn.to/4lsJabj Thinkcar Official Website (10% off Code: AutomotiveDiagnosis): https://mythinkcar.com/products/thinkcar-thinkscan-689bt-bidirectional-scan-tool?ref=fzlivnsp 🎯 MUCAR 892BT AI Diagnostic Tool with Free Lifetime Updates: Amazon US: https://amzn.to/4oidxCg Official Website (10% off Code: AutomotiveDiagnosis): https://mythinkcar.com/products/mucar-892bt-automotive-scanner?ref=fzlivnsp ~~~~ 🎯You might be interested to watch the following videos too: ▶️ Every Fault of CAN-BUS Explained https://www.youtube.com/watch?v=acOnR40WSoE ▶️ Budget Oscilloscope vs Automotive Diagnosis | CAN-Bus, Engine Sensors, Ignition Coils https://www.youtube.com/watch?v=u3BDyY42q_w&t=30s ~~~ Join the channel for more videos: https://www.youtube.com/@AutomotiveDiagnosis/join ~~~~~ 🎯 How to find us? 🌐 https://fix-it-first.com.au/ 🌐https://www.facebook.com/AutoDiag001 🌐 https://www.tiktok.com/@automotivediagnosis ~~~~ Disclaimer: Any information contained in this video is just the understanding of “Automotive Diagnosis: Cars Repair & Training Guides” and it is not an official guide or reference, so everything provided in this video is just a share of our experience and understanding and they are provided as a courtesy for your reference only. So, if you are using any part of this video, use the information at your own risk. We highly advise you to check the manufacturer owner’s manual before performing any act of removal, diagnosis, inspection, or repair on your car to know about what you are authorized to do on your car, what the correct and legal procedure is and what risks might be involved, also viewers are strongly advised to consult a licensed person before any sort of inspection or repair. Due to the factors beyond the control of “Automotive Diagnosis: Cars Repair & Training Guides”, we cannot guarantee against improper use of information or tools or systems, or the procedure provided. “Automotive Diagnosis: Cars Repair & Training Guides” disclaims any damage, injury or loss caused by your decision to follow the steps provided in this video.