rusefi.com

Hi, today i realized one thing, now im have almost 75% of the original ecu pins figured out/reverse engineered the purposes. Instead of making a new PCB, easier would be to swap the original MCU. It is a SAK SAK-C167CR-LM. (TQFP 144pins 0.65pitch, pinout in attachment) ST had a 10F27x series of chip...

Hi everybody. I was a bit busy, but i am making progress on this project. In a short time i will post here my progress.

Hi, printing on the terminal wich i use for workshop information has printing locked only to tiff, because of license. It will not print to PDFs, even the redirection does not work. So if you wait a day i will manually convert it to PDFs and rotate it.

In the wiring diags archive there are tiff files. The first page of the tiffs are abbreviations and component listings, on following pages are schematics. The tiffs are multipage, so multiple pages in one file. I uploaded only the outline for now. In next days i will upload partially drawn schematic...

Here are files from the wiring diagrams CJ920 on this ECU is routed to following ECU connector pins: The ics on the board marking: B57914 - 8x1 analog MUX 74HCT4351 with latch B57965 - 74HC14D B57566 - 74HCT32D? A1 - EV1 A2 - PIN48 EUVB catalytic converter switch valve A3 - EV2 A4 - EV3 A5 - PIN89 T...

Here are hires scans of the MEG ECU, just to make a picture of the original circuitry. Connectors are desoldered also the CJ911 and 30057 are desoldered.
MEGhiresscan.rar - 87.0 MB

In short time ill upload wirings and other materials.

I have schematics of the car, this is not a problem,also in my free time im trying to reverse the MEG ECU schematics,. Dash is CAN driven, it has an manual gearbox but it is controlled with two DC motors. Both motors have qadrature encoders. One is for clutch and the second is for gear selecting. Th...

Hi everybody, i am currently verry happy running rusefi on my Smart Roadster. But i want to integrate the rusefi in the original MEG1.1 casing and maintain all the functionality that the MEG has. But for one it is too much work. Is anyone interrested on helping with this project. When finished it co...

Many older cars do have only K line, or even when they have CAN, it is only used for instruments panel/internal backplane and can or can not output all internal variables. In K line you have a "standardized" PID set, what every or lets say nearly every engine must output, when requested. I...

One interresting thing to support 9141 is that it could act as a "reader" from the stock ECU to "clone" the original ignition and injection maps and use it as a stock tuning base for your car and engine. I think it would be pretty simple to implement eg.: Lets say we switch rusef...

I will test it, when the boards will be made. I have now I2C pins free, i will integrate 9DOF too. Hopefully sometimes this module will be supported to make some really profesional logs with acceleration etc...

Hello everybody.
I have almost ready for etching my final PCBs and i want to ask, if there is any working GPS support/logging for rusefi?

russian wrote:

nighthunter wrote:Now it works.

Please keep us posted on your progress! I would love for someone to step in and move this area forward.

Stay tuned. I am making steps forward as i will now have some "free" time to move forward with my car. Summer is near and the car must be driveable at summer.

Please elaborate, what works exacly? Does frankenso schematics have issues? When i designed my board i looked into the TPIC8101 datasheet and all SPI lines and CS have pullups, but i have not read correctly that the INT/HOLD is internally pulled low. I did not placed a pullup for the INT/HOLD. It s...

Problem is solved now. The INT/HOLD pin is not internally pulled high, but its pulled low! That was the failure. Now it works.

Yes, that is what i thinking, something in input stage goes wrong. I will test it. I have the Int/hold inputmode as default inverted, and the CSPIN input mode also. Is not that the problem? The command enable tpic_advanced_mode toggles the internal ADC reading or STM analog input? So if i use enable...

This is my output of hipinfo in console 2017-04-16 18_39: EngineState: confirmation_hipinfo:7 2017-04-16 18_39: EngineState: spi 1=No/2=Yes/3=Yes 2017-04-16 18_39: EngineState: enabled=Yes state=1 bore=87.50mm freq=7.79kHz PaSDO=3 2017-04-16 18_39: EngineState: band_index=43 gain 1.00/index=-1 outpu...

Hi,
today im trying to make the TPIC to work. Can somebody help me how to configure it in TS? I think the problem is there. What about the connection the connection is 1:1 as the frankenso .4 pcb. Im getting nothing out of the tpic, i am using signal generator 4Vpp 8kHz on input.

Hi everybody. I am continuing my project and my goal is to use as much as possible ICs from ecus i have here. I want to use the supply IC CJ910/911 used in bosch MEG1.0 /1.1s. I will then hopefully redesign the rusefi back to the original MEG casing. I already doing some reverse engineering on this ...

Hi, just to be sure on what STM 32Fxxx can be rusefi currently run, can somebody write down the list of proven chips with packages? I am asking, because i want to design my final rusefi board with some extensibility in mind, but im running out of pins. ie. STM32F407VGT6 - LQFP 100 (F4 discovery is w...

Ive compared the signal (output from LM1815) to the output on original ECU. (Inside there is CJ910/CJ911). At low rpms and deceleration 1-3 tooths were not identified.

Hi, are there any news about integrating wideband?

I have a 60/2 trigger wheel, i measured in with scope and compared with the output signal.

With LM1815 i have a lot of missdetections. It is very poorly designed. You must have very big signal in compare with noise for this IC, it is not differential.

You might get a pinch better signal from your op-amp board if you put a weak 2.5V on one of the op-amp inputs. I think the 9926 has that on the negative input. AKA keeps your signal at about 2.5V instead of allowing the overall potential to wander near the op-amp rails. Sweet, is that a STM32 runni...

Hi, ive minimized the rusefi board a little to fit an FISHER TUF94 32 100 enclosure. (with a "two floor" design). Now i only have to mod the top "logic" board to use "dualhead" configuration so a double pack of STM32s will be there. Stay tuned. Here is a little video of...

Accepting patches and monetary donations

Are you using paypal? Ill make you some donation next week. This is a good project.

Via the USB i have no problem with Burn Page 0 Failed. I had this problem sometimes on the original discovery board. In my PCB design i doubled all the blocking caps around the MCU and now i havent had this problem. So i would guess if it is not a power/transient problem? Next days i test tweaking t...

Hi. Today i populated my board with a BTM-112 bluetooth. It works, but every time, when i Burn settings (close every dialog). It gives me timeout and i must reconnect. It seems that the settings are stored, but it is really painfull everytime i edit tables to reconnect. USB works OK. Is there a way ...

Hi, a working CJ125 driver would be great. Now i am using the hardware/firmware from elektor 1/2012 but it seems to have slow response, so tuning is a little bit tricky.