rusefi.com

I've used needle-nose pliers. Not pretty, but: so far, so good.

Miata CRANK which for current rusEfi trigger logic is "secondary" signal is perfect for cranking. With CRANK signal only on the one hand there is no way to know current shaft position while on the other hand there is enough data to start fueling and sparking! At the moment rusEfi does not have the ...

I just realized- I think with NA Miata 10 ticks on the CRANK portion of the CAS means 5 full revolutions of the crank, not 2.5. So 17 ticks would mean 8.5 revs. Ouch. Or, I may be wrong.

While experimenting with this, I also noticed two things I thought worth mentioning: 1. Charge Angle under cranking dwell settings: This basically defines how many degrees before TDC to start dwelling the coils. I would advise AGAINST using that setting, unless you're certain you need it. Usually, a...

I've built a few rusEfis that run/ran approx 5 Miatas of differing generations. A recurring complaint by the drivers is the slow start. It appears that others andreika ? experienced a similar problem, since he improved the code in this area a little. So, today I sat down with a rusEfi, a Jimstim and...

Since it's a Saab, it will likely be reborn as a marital help for menopausal single women.

Many people entering the aftermarket ECU-world are worried about the complexities. The don't want to have to hack up their car's wiring harness, swap parts and make it difficult to go back to stock. What they want is as plug-and-play as possible. If we can provide a true PNP solution, the initial th...

TLE7368 (3E) is actually only $6.45 on Mouser. It is a fairly complex chip that should be able to fulfill all our power supply needs. But the complexity also makes it a bit of a pain to implement. It will require a fair bit of external circuitry to work.

So maybe keep the long-term trim in sram and have a manual option to apply it to the VE values? I guess that would have to be done in TS somehow.

One more idea: backup power? There's always constant power available on vehicle connector, let's use this for backup sram/rtc. We could potentially store some data such as long term fuel trim. I think long-term fuel trim should be stored in non-volatile memory. SRAM would be for logged error codes ...

[...]We want output wire holes to be bigger like on https://github.com/rusefi/rusefi/tree/master/hardware/low_side_tle6240 [...] We also want holes under the heat dissipating belly of the chip like on https://github.com/rusefi/rusefi/tree/master/hardware/DDPAK_breakout - these are solderable holes ...

That should help- thanks!
@: Installing KiCAD 4.05 now.
For the breakout board: Do we want two rows of single pin headers for easy breadboard installation, or something more creative to minimize real estate needed?

Alright- I sent inquiries to "Espeed" and "Kinkong". They seem to be the Chinese ECU case guys.

How about mounting the ECU on an aluminium plate, then potting what ever shape we want. Basically make a silicon mold, assemble the board, place it in the silicon mold. Then pour in something like technomelt, and wait for it to cool down. https://www.technomelt-simply3.com/en/pcb-markets.html It se...

There are a bunch of cases on Alibaba. Don't look too expensive. Maybe $10 or so. Should I inquire?

I can take a stab at it, but it looks like this new Infineon package DG-PSO-36 is not available in the KICAD package repos. So I'll have to design it. It's been a while since I've done something like that.

From a VERY general standpoint, the best solution with the highest adoption-rate would be one where we have a custom solution for every car in that car's original ECU case with the stock connector in the stock location. Most rusefi users will want to have an installation in their car as easy as poss...

That's the unit I set up for Joe about 2 years back. The new owner [nowski 1991] has been trying to sell the unit on NJ Miatas. Not sure if he ever did.

I think 115200 is the safe max.

There are no Dollar stores in France

Thanks for doing the research on this. However, I think, this idea has been abandoned a few board-generations back and we should purge it from the Wiki immediately and decisively. The 64 pin connector works for all the cars that the 48 pin connector works for and then some. Cases are cheap and plent...

NA Miata is pretty much plug and play. You just solder the standard 64 pin connector to the board. All the jumper-ing is done on the board. Then you just plug in the stock ECU connectors from the harness. There are two things you may want to do right away though: Install a Wideband O2 sensor- tuning...

That should be a no-brainer for you then. Are you planning on getting a pre-soldered one (my personal preference) or are you an SMD-champion who wants to populate the board himself?

Hi! Thanks for the pictures and welcome to this (still fairly exclusive) club of rusefi-istas. 92 Miata should be about as easy a project as can be. The standard setup for your engine is worked out pretty well and the standard maps should have you driving in no time. A few questions: - Are you runni...

That idle valve behavior during cranking is weird and wrong. Mine doesn't do that. See attached picture. I do seem remember, however, that I had a similar problem a few firmware revisions back. Are you running the latest and greatest? I noticed that you are using a pretty high value-75. Maybe you're...

Found it - it wasn't even all that well hidden

More "D" improved the oscillations a lot, especially on a warm engine. The "P" term is still going a bit crazy, essentially dithering around the target, but since our control is fairly slow to react, this seems to work quite well, especially at higher rpms. One thing I noticed, running the board on ...

I'd forgotten about that driver. TTL works now.
Why only 38400 baud though?

My latest Frankenso board has three spots for mini-USB ports. Two of them are populated with a connector. One is labeled TTL and when I plug this into my computer, a friendly little green LED comes on. Nothing else seems to happen though. One is labeled PROG, but not populated. (Even though I believ...

It appears that we still have an issue that we saw last year on my '03 as well. VVT target does not get interpolated when we're outside the boundaries of the table. With the top row set at 85kpa, under full throttle (MAP around 95 or so), the target values (red line in the second graph window below)...