Injector control questions
Thread Starter
Teching In
Joined: Sep 2024
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Injector control questions Are the pulses timed anybody know the times for a gen 3 5.7 aluminum or anyone with info on what tells it time to spray and are these times consistent or do they change is there a way to make a driver ground out to trigger at correct time or could you regulate pressure to drive not only do I know they are triggered before the spark are the coils I know have 2 grounds is it possible to ground the wires to injectors as behind per cylinder firing ppl I know I'm crazy but I just like to build my brain with badass things is there such standalone driver or way to do this with injunuty or a timed grounded device lol any secrets out there ppl
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Joined: Oct 2016
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From: PDX-OR-USA
The injection opertes sorta like the ignition BUT!!!
The ECU tells the injector when and for how long to open.
Your explanation of what your trying to do needs more meat in it.
If you think your going to make it better than the factory or a standalone ECU
with a hack, just remember the thousands of engineers that already worked on them for the last 20 years.
The ECU tells the injector when and for how long to open.
Your explanation of what your trying to do needs more meat in it.
If you think your going to make it better than the factory or a standalone ECU
with a hack, just remember the thousands of engineers that already worked on them for the last 20 years.
Are the pulses timed anybody know the times for a gen 3 5.7 aluminum or anyone with info on what tells it time to spray and are these times consistent or do they change is there a way to make a driver ground out to trigger at correct time or could you regulate pressure to drive not only do I know they are triggered before the spark are the coils I know have 2 grounds is it possible to ground the wires to injectors as behind per cylinder firing ppl I know I'm crazy but I just like to build my brain with badass things is there such standalone driver or way to do this with injunuty or a timed grounded device lol any secrets out there ppl
TECH Enthusiast
Joined: Aug 2021
Posts: 507
Likes: 190
Injection Instant Hi 93, 93* or 453* would be a good time to open the injector AT LOW RPM.
I would need to know WHEN you believe the cycle begins ?
I then advance that point as RPM is increased.
AS the inventor of the FIRST MODERN EMS ( DIS & FUEL), I state "0" is when the intake opens to start a cycle.
Lance
I would need to know WHEN you believe the cycle begins ?
I then advance that point as RPM is increased.
AS the inventor of the FIRST MODERN EMS ( DIS & FUEL), I state "0" is when the intake opens to start a cycle.
Lance
TECH Senior Member
Joined: Jun 2016
Posts: 22,293
Likes: 3,617
From: Central Cal.
Hi 93, 93* or 453* would be a good time to open the injector AT LOW RPM.
I would need to know WHEN you believe the cycle begins ?
I then advance that point as RPM is increased.
AS the inventor of the FIRST MODERN EMS ( DIS & FUEL), I state "0" is when the intake opens to start a cycle.
Lance
I would need to know WHEN you believe the cycle begins ?
I then advance that point as RPM is increased.
AS the inventor of the FIRST MODERN EMS ( DIS & FUEL), I state "0" is when the intake opens to start a cycle.
Lance
With all respect, I doubt OP would have ANY clue as to what you are talking about.
Your thinking above is about 3 planes (or more) higher than his frame of thinking.
Read his first post.
Thread Starter
Teching In
Joined: Sep 2024
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Now we're talking with tinkiers Lance this is kinda what I was thinking if I had it a phase to be timed a phase behind like perhaps I'm on a odd cylinder if it grounded on a even cylinder don't mind them some ppls mind isn't made for THIS SECTION OF THE FOURM I reported him rude so .... but yeah exactly he won't be getting hired by Ford any time soon haha but u lance ur on to the next post bud .. names jacob
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i'm not too sure about what you're trying to do with your post. but, to understand how gen iii and gen iv ECM's handle injection timing, these threads might help you. fyi, EOIT is "end of injection target."
https://forum.hptuners.com/showthread.php?12605
https://forum.hptuners.com/showthrea...njector-Timing
the ECM uses sensor data as well as the values in the calibration to calculate this. crank/cam sensors are needed, obviously, to judge the location of each piston in crank degrees as well as if it is on the proper stroke for air/fuel intake. from what i can see, engine coolant temp and rpm are also factors.
EOIT values can't be changed with hptuners in the p59, but in gen iv ecm's it can be edited.
injection timing boundary value can be edited in the P59 ecm.
https://forum.hptuners.com/showthread.php?12605
https://forum.hptuners.com/showthrea...njector-Timing
the ECM uses sensor data as well as the values in the calibration to calculate this. crank/cam sensors are needed, obviously, to judge the location of each piston in crank degrees as well as if it is on the proper stroke for air/fuel intake. from what i can see, engine coolant temp and rpm are also factors.
EOIT values can't be changed with hptuners in the p59, but in gen iv ecm's it can be edited.
injection timing boundary value can be edited in the P59 ecm.
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Verdad Gallardo TECH Enthusiast
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Cps and eoit Hi Jonny, yes GM did try to "PiRATE" my 60-2 (GM 58x) Target Wheel decode. The patent circ 1986 expired in 2006 allowing ALL cars, the engines, made on Earth to use this method. I taught the GM engineers how to use the accurate 1/4*@2500 RPM Acceleration accuracy. THIS allows the Crankshaft Position Sensor ONLY to know the piston position that is then sent to the EMS. THEN THEY FORGOT, "lets use EOIT for fuel". BIG MISTAKE, the reason was LOW CPU performance. THUS the GENIII carryover.
I state that the engine should be fueled WHEN port air flow is high, NOT at VALVE OVERLAP ("on a CLOSED valve").
Thus TAU fuel will be LOW, the fuel will mix well with the air in the port. LOW Emissoins, good mileage, best power.
NOW lets talk about the Injection Instant (MY term)
Lance
I state that the engine should be fueled WHEN port air flow is high, NOT at VALVE OVERLAP ("on a CLOSED valve").
Thus TAU fuel will be LOW, the fuel will mix well with the air in the port. LOW Emissoins, good mileage, best power.
NOW lets talk about the Injection Instant (MY term)
Lance
