Yes, you can tell a lot from the scope waveform, such as injector pintle lifting from it's seat (actual opening), current draw, pulse-width and max current draw. It is by far the best way to analyze an injector's complete health. This will become even more important with the new GDI engines hitting the market now from all the auto makers. Thanks for posting.
The P0758 is a transmission code. Yes, a vacuum leak can do the other codes. Get a hose, stick it in your ear (clean hose) and slowly browse at the engine intake and related hoses. Listen for a high pitch hiss. Good luck.
@doobryfingy Hi doobryfingy, thank you for posting. Well not really, but we do listen to you folks and always try to make our videos better. We're also a full automotive help service right here on this YT channel. If ever any car issues, let us know and it's free. Keep posting.
@fiverrgigler Ok, the ECM triggers the injector by providing a ground. Your next step is to check the injector wire (pulsed) for continuity to the ECM connector. Search the web for a wiring diagram. Remember, check the wire opposite to the 12 volt steady power. ID the wire and go for the check. Post back afterwards...
@fiverrgigler On the inoperative injector, with Key On Engine Off disconnect and check for power at one side of the injector (any side). One side has to have steady power. If it's a Dodge that it's different then post back. The other side has to pulse a ground when engine cranked. You may use a NOID light to check for pulsation. Post back after you check these points. Good luck...
If injector 4 does not open, the CAM sensor won't do much. Cylinder 4 injector is triggered by ECM. DO the following: Key On Engine OFF then disconnect your #4 injector. One side is 12volts the other is the trigger from the ECM. Disconnect ECM, using wiring diagram find #4 trigger wire and ground it to chassis (ECM disconnected). Use DMM continuity setting and probe for ground at #4 trigger wire. Post back with findings...Good luck.
@fiverrgigler OK, this is what you can do: Just swap the injector connector of the faulty one with the one next to it. It's fine the injectors will pulse out of synch, but the fuel stays in the manifold runner. If its the injector then the same inj. will continue to fail. If it's wiring or the ECM then the new injector (swaped one) will also start to fail. Post back with more.
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@Semmy4tube Thank you... All we ask in return is that you keep posting and participate. I also encourage you to watch our new series, "Stories from the Road" right here in this channel. Let me know what you think. Good luck to you...
Muchas gracias por enseñar. He visto todos sus vídeos, pero hace falta el video del sistema de limpiabrisas Le agradeceria mucho si lo puede hacer. GRACIAS
Just flush it. Some places remove the side and stick a metal flat rod through the conduits. Metal rod like an oil stick. Then the side is reassembled either welded or plastic-clamped and if the radiator metal is still good then you set. If replacing radiator don't just go from aluminum to copper. It won't work.
hey man,what exactly drive injectors to inject fuel at the right time,i saw in one animation injectors work under pressure but i think that is imposible..my enlish is not perfect so explain to me here
Can u help me with this I have problem with injector 4 in my Hyundai accent they have power but they not grating signal and the injector don't open I change the cam sensor and the injector
Hi im having trouble starting an engine, perkins 1106, the engine turns over as quick as normal, batt voltage is 12.92, fuel system has fuel to the pump, engine turns over and over but never fires? no smoke from the exhaust give it a sniff of ether and it fires and then runs fine. please help
I am having the same trouble with the same engine in a massey ferguson tractor. Starts first time in morning but will not restart after being stopped for a short period of time. Give it an hour and it starts again. Had the dealer put their computer on it everything tests ok. strange