LLY Ficm
- Thread starter mplecha
- Start date
Someone may have written the Injector #'s in wrong pin positions on our new PCB..?
He was running the AF Cam version on a stock engine, and reported she was a bit smokey.... But on a good note, the plugNplay AF Cam release is now done if anyone needs it.
Hay, I gave the updated pinouts to compensate for the labeling issue. Someone on your team goofed in writing them downSomeone may have written the Injector #'s in wrong pin positions on our new PCB..?
He was running the AF Cam version on a stock engine, and reported she was a bit smokey.... But on a good note, the plugNplay AF Cam release is now done if anyone needs it.
. I wonder how clean the cylinder walls are now with all the wash down 
You're third person I've witnessed run a Duramax with the plug wires crossed up. Luckily the first one was me, which makes that telltale white smoke an easy call.. It's all good.
So that data I sent was useful then... LOLSomeone may have written the Injector #'s in wrong pin positions on our new PCB..?
He was running the AF Cam version on a stock engine, and reported she was a bit smokey.... But on a good note, the plugNplay AF Cam release is now done if anyone needs it.
opps.... Well at least you know now...That wasn't the issue. I created it when messing around trying to figure out the issues. We had a mismatch in input vs output. Took a lot of hair pulling to figure it out and even more hair loss to find the correct pattern.
My test board that has the switches to swap around inputs on the fly locked up and stuck some injectors on. Only takes a few seconds like that to burn one up.
But have no fear, I have a handful of injectors on my bench setup that I can rob
For me it was. Reverified our early hastey work on that part. Thanks for the support.
Neither of us are down 3 sticks on this venture at the moment, so please, keep up the good work.. lol
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As the code progresses and new capabilities are needed, new boards are built to provide such needs. This new board will have the ability to directly control the injector turn on spike duration. It will also be able handle PWM on the injector hold current to better control the current. The current code is running clean and pretty smooth. A few bugs to work out and CANbus needs to be added. Then we can start implementing the error checking and injector shutdown protocols
Latest board with no more electrolytic capacitors. I feel we are getting close
Latest board with no more electrolytic capacitors. I feel we are getting close
I'm blown away by the capabilities of some of the members here. Really impressive, guys!
Some debugging tonight. This is what you guys are making me do on a Sunday night
Could be worse... Went to pick up that Ford today, Looks like I am sucking air on the low pressure side now. Didn't want to start after I Dropped the trailer back off. Primed the Filter head back up and it started leaking. Guess it's going to be a busy week of fixing stuff...
No. She bone stock except the stupid K&N CAI and the AFE Blade runner mouth piece that was on it. Also has Banks Cat back. I believe it had a lift pump or possibly they had a work bed on it because the filler neck was cut and spliced back together with a piece of tubing exactly where you would do it if you installed a lift pump with the return.
I think the Filter head needs a rebuild and I noticed the low pressure lines are all cracking so probably need to do those as well. when I went to prime it back up she started leaking a bit then stopped. The filter head was scorching hot when I tried to prime it.
Trying to figure out if I should get OE hoses or one of those kits from Merchant or DHD?
Found this most elusive creature, camouflaged in decades of dust. Has many a hard mile on it, but let's see what's left.. Will I cook it?
Talking about the bone stoc LLY FICM of course... The rest of the truck is only on loan. A fine surviver example, that I first borrowed to tow a boat to Vegas on straight B100 over a decade ago. We have history.
Plus, the owner insisted I use it for our beta testing. It's survived 10yrs ownership by a GM tech, what's worse I could do to it??
Thank You Dustin.
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Talking about the bone stoc LLY FICM of course... The rest of the truck is only on loan. A fine surviver example, that I first borrowed to tow a boat to Vegas on straight B100 over a decade ago. We have history.
Plus, the owner insisted I use it for our beta testing. It's survived 10yrs ownership by a GM tech, what's worse I could do to it??
Thank You Dustin.
Sent from my SM-S901U using Tapatalk
Capturing crank pattern live running in digital format to fine tune our glitch filtering. Replicating the uneven tooth gap times on the bench with arduino code, doesn't yield true real world results.. Maybe tomorrow I slap our board on it.
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Expanding on what Ken is saying. With the combustion events, there is a momentary increase in speed of the reluctor wheel and thus a faster tooth count. Then the speed slows down . This creates a flast and slow capturing of the RPMs and time between the teeth. The current code didn't really take this into account as the bench setup doesn't have any real combustion so the reluctor is unrealistically smooth and easy to read and calculate RPM, start point or gap and counting teeth or crank angle calculation. But when the teeth or signal speeds and slows so quickly as it does on a diesel engine it can look like the teeth are bouncing back and forth creating a false impression that the RPMs are much higher then they actually are
The code is being revised to deal with this. We are trying to capture more data on the live crank signal so we can analyze it, calculate time between pulse signals, figure out minimum and maximum times and such. All to help build coding that can read this more varied pulse signal with better accuracy. After all it's integral to calculating the delay of the injector firing. So it has to be robust and fault tolerant
The code is being revised to deal with this. We are trying to capture more data on the live crank signal so we can analyze it, calculate time between pulse signals, figure out minimum and maximum times and such. All to help build coding that can read this more varied pulse signal with better accuracy. After all it's integral to calculating the delay of the injector firing. So it has to be robust and fault tolerant