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Just gone through the power supply area deliberately leaving the solder through parts until later. One thing to watch here is that it is easy to slightly scorch the LEDs with the hot air gun, a couple of mine have gone a bit yellow where I got them a bit warm so I might have to change them out. Powe...

Next off put the knock sensor interface area in, few substitution questions on this one. U161 - D161 - TPIC8101 - Knock sensor interface http://www.ti.com/lit/ds/symlink/tpic8101.pdf https://live.staticflickr.com/1972/43399907450_42e4d69bd6_b.jpg R172 R172 - Do not populate R167 R168 R163 R164 = 390...

Thanks, thought so.

Just to check, the parts marked DNP are not to be populated by the board manufacturers, I assume this also applies to us home building?

Next I did the 8 channel high/low drivers This meant that I had to do a few additional parts from another circuit due to limited access later on. U601 U603 = TC4427 https://www.mouser.com/ds/2/268/20001422G-967549.pdf dot = pin 1, check orientation on board by ID pin 3 as ground using multi meter. C...

My board arrived on Friday (after some battles with parcel force, apparently you cant pay customs the same day as it clears customs and I mysteriously asked for a later delivery. :?: ) I have started populating the board so I will start dropping details into this thread, for now each post is going t...

It does but only really if you have a solid base line for engine to know what is a high or low temperature. For example we have 2 engines on different dynos at the moment, one is hitting a max of about 800 degrees EGT and the other hits 1080 Degrees C regularly! If its possible to base line the engi...

I said I would do a kit and materials round up so I had better get on with it as I just discovered my board has now cleared UK customs. Also this is going to be take 2 as I just lost a ~1000 word post due to being signed out. :o First off solder and flux: https://www.rapidonline.com/warton-metals-mi...

Are you thinking for frequency MAF sensors? It's a fair point, at the moment things look to be set up for just simple voltage MAF sensors like most 80s and 90s cars have. 100% the Bosch and Siemens MAF sensors used on BMWs up to about 2000 are simple voltage units. Take a look at the attachment, pre...

Having had a look through that page the current method is: fuel_squirt_duration = injector_lag_curve_lookup(V_BATT) + warm_up_curve_lookup(COOLANT_TEMPERATURE) * intake_air_correction_curve_lookup(INTAKE_AIR_TEMP) * fuel_table_lookup(RPM, MAF) Which means to shift to a pulse width based load system ...

OK, so looks like the 5v thing was my fault, sorry about that. :D No problem on the limited time, I know the feeling bouncing back and forth between several projects. I had not seen that page, I had been picking through the source code to see what was and wasn't there. I will take a good look as the...

Indeed your correct, there's no way a MAF can create this voltage at low RPM, hence the need for a load based algorithm. Can you point out where I said 5v at 800rpm as if I did its a mistake made from working late at night while watching TV. If you look at the first fuel map up the top of the post y...

Ok, no problem. I wanted to be sure I was not treading on any toes or duplicating work already done before doing anything. The obvious issue with the current method is the use of the voltage on the main fuel table, the MAF voltage will only increase with total airflow and the engines airflow will on...

I'm planning to run with the MAF on a this car is mostly a road car and thus the pros/cons of the MAF system make sense for day to day driving. I was looking at tuner pro and a little at the code and it seems that at the moment when the ECU is in MAF mode it only works off the raw voltage from the M...

I want to make an update to this as its been a week but from the tracking details my board is still stuck in customs (@Russian - I must post the tracking details, they are hilarious, it crossed the Hudson twice going to queens to end up flying from the airport less than 8 miles from where you live :...

As there is no real guide to putting together the Frankenso board in kit form I thought I would start a project thread for my kit build which can later be edited into a Wiki page for the board assembly showing the pitfalls of being brave and cheap and building the kit yourself. I will add to this th...

Just ordered a Frankenso Kit with LCD and SMD bundle from the Tindie store.

Now have to prepare myself for the customs charges.

Thanks, My plan on that side is to prototype something up that holds the ignition IGBTs and the connector in a single interface board, idea being it can be wired to a standard Frankenso board and provide the required additional bits for the BMWs with minimal messing about and it will keep the high p...

I picked up a discovery as it seemed to be the default option. That way I know anything I do is not working because of botched code or soldering and not the brain board. Once I have done my E30 I have a friend that wants to run a 2JZ off one of these and then later I may try to use if with a BMW N52...

If the Max9926 is the toughest one then I should be ok (prepared to eat those words later :lol: ) Looking at the spec sheet its a 0.635mm spacing .3mm width lead so about the same size as the 0402 bits I was messing with (1.0mm × 0.5mm). My trick for some of those was to tin the pads using the solde...

Thanks guys. I guess the first question is how hard is the soldering of the board really? I noticed most of the components are 0805 packages which for resistors, caps and LEDs were a piece of cake, the practice boards I picked up used these two packages http://uk.farnell.com/texas-instruments/cd4017...

Something that might be worth mentioning here is that a lot of the cars that use that kind of idle valve have hybrid idle control strategies that use the valve for slow/course control of the idle speed and then use the ignition timing as a fast control. The idle valve control is not fast enough to s...

It appears to be the same board they sell here: https://www.ebay.com/itm/Open407V-D-Core407V-Development-Board-Standard-STM32F4-DISCOVERY-ARM-Cortex-M4/172740399220?var=471521948086&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D53210%26meid%3D24a63b9531f648ea861aa957e2a5c3de%26pid%3D1...

Morning All. I Have been looking at this project for a few weeks now after stumbling across it while looking for higher performing open ECUs and I think I'm ready to jump in with both feet. I have been going through the wiki, hardware and software forum and have just started digging through the sour...