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w00t! once it builds up pressure, it will basically dead stop the drill and jerk my hand holding it.. but you can see some voltage difference.. whatever it equates to, on the purple line (lowers from the ~5v) Looks like the green line (signal 2) raises.. half.. scared?.. to hold onto the drill and t...

so, rigged up the gauge to an injector feed outlet on the rail, and given the gauge only gets up to 140psi I was trying to go slow.. with the electric pump on, and using the drill to crank it, it would wobble possibly up to 60psi (once air was bled out) but bleed back down.. The rail pressure regula...

gauge + new pump arrived a day late.. the first pump wont even register pressure past the fuel filter (registers about 7psi pre .. did I introduce air into the line that never cleared out?).. hand pumping the filter I can easily get it to above 30psi (with no noticeable strain beyond pressure on the...

Ordered a pump that will get up to about the rating of the tubing, and a pressure gauge kit that I do no have high hopes for due to the connectors/whatnot, but I may be able to get a reading of old, new, and hand pumping, which should give me some aim.. Of course if the pump that is coming is still ...

so, looks like the priming pump is able to get fuel to the pump, visible by fuel flowing through the return lines.. but not at a pressure it needs.. no fuel comes through the high pressure side when I hand crank - even when the new electric priming pump is on. but if I hand pump the fuel filter (so ...

Viscosity is not an issue at room temps, and bio-diesel is actual more lubricant than dino-diesel. The flow bench isn't sploching around (as in a car) neither, so I haven't witnessed any foaming. the BD I got is 99.9% - I forget what additives are in it but possibly a surfactant and something to low...

picked up 4 gal of biodiesel.. I could only get flow through the return if I was prime pumping.. so I had to same day ship (on sunday no less) a small lift/priming pump, but now with it installed I get flow when I crank the pump so it may just be the check valve as I doubt it built up that much back...

Everything delivered. I actually had to order a Die (and another plug) because although the measured -06 ORB of 18TPI was accurate, the diameter was wrong (and I chewed up the threads on the plug). It was actually 1/4 NPT/FIP ( which is odd because NPT does not have O-Ring dimensions as part of the ...

I would be pretty careful with this stuff, even if I have some extra on hand.. wall thickness of ~0.3mm, for an overall dimension of a little more than 2.4mm.. I measured about 2.5mm for the orig injector overall and 1.5mm for the conductor itself so, to go from 0.5mm wall thickness to 0.3mm (and in...

not sure why I said "Looks like Mouser doesn't have a lot of 18 AWG (=0.75), and would say 16 AWG is also needed (=1.5)" ... 0.50mm =~ 24 AWG 0.75mm =~ 20 AWG 1.50mm =~ 14 AWG 2.50mm =~ 10 AWG I was trying to use some charts but they were not consistent.. anywho, glad I didnt order any wir...

95PP3-1 common rail pressure sensor
from a 2018 chevy cruze 1.6L diesel (LH7 engine code)

Delphi-UK said they cant give any datasheets for commercial applications, only aftermarket - and this was obv under contract w/ GM..

afaik they havent played any sharknados.. I've only seen clips here and there but it's as good as it sounds........... I'm working on specing out the connectors for the fuel system.. I'd like to use a different size of quick connect for the inlet vs outlet of the filter, to ensure to never mix up th...

The plus side of deciding to use the Smart as the shell - it has a tiny tank. This will basically enforce more frequent fillups and less "growing" (I'll likely call it "spoiling" or "oxidizing" if I am in a chemistry mood) - I just should not store much of it for too lo...

fuel filter arrived.. it's actually a fuel/water separator - which is good for biodiesel, especially homemade. Since it is "only" 10 micron I may look into a separate, primary, 2 micron fuel filter. I need some adapters and fuel line and such.. Also looking up when a fuel heater (to move t...

Sad to say, but I didn't have much on hand.. I haven't been doing much on-hands electronics as much as my other hobbies the past few years.. I really only had two other projects built out specifically for them without much spares.. the 1K's actually came off a trashed electronic board.. I am looking...

Spent some time identifying components and ports and whatnot.. using standalone engine without the stuff that was used to run it certainly has it's challenges.. The high pressure pump is a Denso HP3, ID'd by pictures The rail pressure sensor is a Delphi.. no datasheet found but it's a good start - I...

Oh, also looking into the microcode more.. the given example makes it so both "fuel pumps" cannot be on at the same time - would be a nice first step of learning/modifying the code to get them both to work at once.. but what to do with the single feedback between them? possibly tie it in w...

I am waiting on the fuel filter (finally shipped) before I try to generate any pressure - I really dont want to put possibly dirty fuel through the injectors. I have hand cranked with the socket wrench a few times - more with the feed line off the rail of which I got a few spurts - but even when on ...

checked the schematic for the rail pressure sensor (vs the drawing/whichever of the connector) and it stated "5V4".. attempted to get a reading from it by increasing the voltage by 0.4V (variable DC PSU, up to I think 30V and 5A?) but no reading on the scope on either two of the signal out...

Neat, thanks for the links, I have yet to really search the forums for more than diesel related topics.. the service manual was somewhat interactive/link driven via some javascript & svg.. saving it to disk was more manual, required saving as PDF and losing the linkability - but each wire has a ...

I read EL wire gives +2HP, but no peer reviewed scientific journals have published this fact, yet.. The idea of using the label maker is there, my Epson LW-400 is compatible with LK-4WBA5 heat shrink tube amongst others.. the aesthetic of all B/W would be interesting, but reading "BU/BK" i...

After some thought on the wires.. I'm actually liking the marker idea w/ white wire... to a degree. The thought is to use color coded identification bands on ea wire at both ends/terminals. I dont think people really care tracing a wire half way through a harness that is bundled up anyways, though i...

Got most of all the remaining connectors.. quite a few.. around 30 including individual injectors and glow plugs

Label Everything - And Make Sure You Can Read It

I believe both solenoids use PWM to keep the valves open a certain degree.. not just open/closed That higher connector (pump regulator solenoid) has 20 AWG (0.75mm) vs 22 AWG (0.5mm) for the 4ohm rail pressure regulator solenoid, so it clearly is designed to take more energy. I think I am going to r...

Fuel Filter + Assembly (including hand primer pump, Cummins/Fleetguard) ordered.. may take a week I saw one that I liked and had to hunt down the part number, got a brand new item for fairly inexpensive.. not sure what micron the filter is, I was really just wanting the head since it seemed 100x bet...

The screws are actually for exterior use, possibly for decks. I orig got them for connecting 2" rigid exterior insulation to sheathing. the head is the square-2.. I had these on hand what I actually bought was nuts.. the end of the pump has the sprocket nut screwed on, and I have the socket res...

Got the flow bench mostly built.. missing fuel inlet (hopefully through a filter with a hand primer built in) missing wiring (and subsequent interfacing to the sensors/valves) missing connection to the socket to drive the pump via hand drill I am going to be using amber glass bottles, because they t...

and sort of making a mental note.. I would likely want to setup a line with a filter.. these modern injectors dont like any particles in the mix and would prefer to be on the safe side, so need to scout out what all is out there I'll attempt to make the flowbench jig out of 2x's that I have on hand....

and I thought of how to drive the pump...

put the sprocket nut on it, and drive that (with a hand drill)