rusefi.com

Hi!

Small introduction:
I am an electrical engineer for a semiconductor company, living in The Netherlands and currently 25 years old.
My skills are:
-PCB design
-PCB manufacturing
-Embedded C developer (PICs,AVRs,STM32s,NXP LPCs)
-And some basic mechanical skills (by hobby only)

My most interesting past project was building a Hydrogen Fuel Cell kart / formula student car.
This is me driving it:

I have built multiple PCBs for this car and also wrote embedded C code for the car.

Cars then:
My first car was a 1991 Daihatsu Charade 1.3i TX as I could not afford much more as a student.
This Charade was a nice start, only 800kg and with 90 bhp it was quite quick.
Went to the track with it and it all started there. Brakes and suspension were upgraded after the first trackday, but the Charade did not feel like a brilliant track car so I developed a desire for something a little better.
Still being a student I bought this project car:

Started its life a standard Civic 1.4s, but during the years I modified it with my student budget.
Currently it has:
-D16Y7 engine with D16Y8 (SOHC VTEC) cylinderhead - 120 BHP
-D13B2 gearbox (from a carby 1.3)
-Integra Type-R brakes with Hawk HPS pads
-Civic Type-R EK9 springs and dampers

Makes for a very low cost and reliable track car.
This is me steering it around the Nurburgring:
[video][/video]
I still have this vehicle and it runs reliably and well on the remapped OEM OBD-I ECU.
No real need for an aftermarket ECU in this car, but it may be a very nice test vehicle.

Now the Civic was built very low cost during my student time, but with me working for some time and having more money to spend I bought a MX-5 as a next project car:

Bought the car with a blown engine for cheap.
Now when I started on the car it showed it had a lot of rust.
At the moment the car is taken completely apart and everything is being fixed.
The rust is already fixed and I am currently freshing up the suspension.
Plans for the engine are to put some decent rods in it and turbocharge it.
I already bought the turbocharger: the TD04HL-16T.

Now this car will need an aftermarket ECU. At this moment there are a lot of options, but rusEFI has a lot of potential so that is why I am here.
I am sure I can help with my skills!

Hello DaWaN! That's a pretty impressive introduction

DaWaN wrote:This is me steering it around the Nurburgring

I'm jealous. Bragging mode on: I've driven a Miata @ http://en.wikipedia.org/wiki/Mazda_Raceway_Laguna_Seca Bragging mode off.

All this can use more help then you have time. Please help us a bit, hopefully we will make something cool

Does your Civic use this 64 pin connector? Does your Miata use the same or that 72 pin connector?

Very nice and welcome along. I seem to recall a DaWaN from some where, perhaps we have meet in other forums.

Have you found Frankenso yet? http://rusefi.com/wiki/index.php?title=Manual:Hardware_Frankenso_board It's Miata friendly. If you have seen it, have you had a chance to review it? Do you have any suggestions, abuse, or other feedback? Does it meet you needs?

Again welcome along.

Thanks for the warm welcome, lets not brag any further and get down to the business

First the Honda:
The Honda runs a OBD2a engine wiring loom with a OBD1 ECU (P06 w/ VTEC circuitry added by me). The way I connect the OBD2a loom to the ECU is by use of a Chinese OBD1 -> OBD2a conversion harness
The car used to run a 1.4 wiring loom which is specific to the EUDM Civic, very little information about this available, but I completely swapped the loom with a OBD2a loom from a 1.5 VTEC-E.
Now I am not sure about pin-outs and connector but Honda's run different ECU connections through the years:
1986-1991: OBD0
1992-1995: OBD1
1996-1998: OBD2a
1998-2000: OBD2b
2001 and onwards: K-series based ECUs, I do not know much about them (but this might be a very interesting target for rusEfi as there is no real low-cost tuning alternative for Honda K-series engines)

So essentially all the Honda guys running a pre-K series engine (D-series, H-series, B-series, F-series) want to run a OBD1 ECU as this is the ECU which can run 3th party binaries and allows for remapping and extra features.
This is why you can buy conversion harnesses so you can run a OBD1 ECU on the wire harnesses of other model year Hondas from 1986 till 2000. All the sensors and actuators are basically compatible between 1986 and 2000 (some exceptions though, but not informative to list them all in this thread)
I run a OBD1 ECU (code name P06) with CROME tuning FW.

If I want to run rusEfi on this car I think I can just buy another conversion harness, as they are only 20 bucks and then I can solder the wires directly to a board.
I also have a salvage OBD1 ECU laying around where I can reuse the connector and housing, but that would require a custom PCB (not sure that is worth the effort).

The plans for the Miata are not yet written yet. For now I want to add sequential ignition (I have bought Toyota COPs for the thing) and some extra sensors: MAP, oil pressure, oil temperature and fuel pressure.
The engine of the Miata is also going to run 620cc EV14's. I really wanted to have the VVT engine, but I did not manage to source one for a reasonable price yet, so plans for now are just to run my '99 cylinder head.
I have already bought a spare bottom end for 30 euro's (40 USD) from a 323, so most likely it is going to run that bottom end with forged rods and OEM pistons together with the '99 Miata cylinder head and sump.
For the turbo manifold and downpipe I will ask Sturovo (you all know him I guess) to build me some nice parts soon.
I have not yet dived into engine and electronics of the Miata as I must finish brakes / suspension / rust work first (I do not really like that kind of work so it has to happen first, otherwise the thing will never get on the road again).
As far as I know the Miata ECU have changed during the years, not all NA miatas are equal and also the NB '99-'00 differs from the later NB-FL '01-'05. I have a NB 1.8 BP from 1999 so that makes my engine loom identical to Sturovo's car.

I took a quick look at the Frankenso ECU and on first glance it looks nice. I will have some feedback w.r.t. schematic and layout, but I will save that work for this evening.

As for seeing me around, this can be true. I have been lurking around DIYEFI.org for years and I always review their HW designs. I think the 5V sensor supply clamp thingy with the TL-431 and a transistor on some of the FreeEMS HW designs was my idea

Also as you might see from this post I have no problems with writing long stretches of text, so maybe I can help writing tutorials/documentation for the wiki as well.

Sounds good. Also perhaps worth mention, on several Honda's they used the same connector as the Miata. Currently russian has a Honda Civic which uses Frankenso. There is a re-mapping section of the board that allows either jumper wires (or preferably an add-on board) to re map the pin out. If you harness connector happens to fit that connector, you can do the remapping in the ECU with out modifying the harness.

About the clamping, could be from you in part or fully. I forget, and it has been designed from many reference designs. If you want credit or something, let me know and I can add a note some where.

About long posts, that can be good, or bad. So far you have been writing the way I like skirts. Long enough to cover what's important, short enough to be interesting.

I'll look forward to you feedback. Again welcome along.

I ran the Civic into a concrete wall yesterday.. Painful experience: both for my body and wallet. Car is beyond repair, right front wheel went into the passenger foot well, passenger door is next to the car, roof is bent, the whole floor seems bent and the front of the car has moved like 20 cm compared to the rest of the car. Looking from the side the chassis beam points 45 degrees upward..
Physically I feel OK, apart from the strained muscles, but I guess that is normal. Cycled 15 kilometers today and that was no real problem.
Note sure what is going to happen next, I might try living without car for some time. In the meantime I will work on the MX-5, but I do not expect that car to run within 3 months.
So I will not host a RusEFI test bed soon I guess, for which I am sorry.

KB1GTT: can you contact me by Skype or something like that ? Peer reviewing hardware is no problem, but it needs some peer pressure to make it work

Both sorry to hear about the car, and good to hear you made it through. Cycling is good exercise, so that's a + side of the issue.

I'll try to remember to peer pressure you. That will probably happen next week. I'm reasonably busy this week, so it would be kind of hard to get done this week. I'm in the Eastern Standard Time zone, what time zone are you in?

kb1gtt wrote:Both sorry to hear about the car, and good to hear you made it through. Cycling is good exercise, so that's a + side of the issue.

I'll try to remember to peer pressure you. That will probably happen next week. I'm reasonably busy this week, so it would be kind of hard to get done this week. I'm in the Eastern Standard Time zone, what time zone are you in?

I am used to cycle around 7500 kilometers a year anyway, so I was already doing most of my transport by bike. It is the advantage of The Netherlands: everything is close by and the cycle roads are one of the best ones in the world. It was more of a relief this morning I had no trouble with cycling because of the crash, because I do not want to depend on public transport.. I do not miss the car on a day-to-day basis as my commuter transport is by bike anyway (2x 16 km a day )

I am located in The Netherlands, Europe, so I am at Central European Time. Usually available from 20:00 till 23:00 and for emergencies / small stuff during office hours (8:00-17:30).

Ops Was it on a track? Sorry to hear that.

I've dive-bombed and hit another car yesterday, but hopefully the damage would be limited to just the bumper beam.

Yes it happened on track, on the road I like to keep things safe.
Nevertheless I think this was a lesson on safety, I do not want to know what would have happened if I had crashed it in the Füchsrohre (foxhole), because this car would have peaked 195km/u at that point.. This impact was only at about 60km/u, but the damage is already quite massive.
Picture time:




As for now it seems I will be buying another car soon, now I have to make up my mind... So many choices

At least there is the joy of buying a new car

Do you know if your insurance would pay you anything? Since it was on the track, but on the other hand it was not racing?

Nope, no insurance whatsoever..

Anyway I have bought something else:
A Lexus IS200 Sport with Torsen LSD.

It has the Toyota 1G-FE engine which is a 2.0L DOHC VVT-i Inline-6 with 155 BHP.
The car drives really nice and it goes sideways very well (which is why I really like the "TCS OFF" button now ).
Performance is not brilliant compared to the Civic, the engine only comes alive at 4500RPM and fun ends at 6500RPM already. Still the gearing is quite close (6spd) so it is not unbearable.
As for performance upgrades I have to think, this car is not really suited to the track anyway. I will check how easy I can get a 1JZ / 2JZ and a R154 first, if I can get such a combo at a bearable price it will be my choice.
Otherwise it might be interesting to turbocharge this 1G-FE, but focus has to be on the MX-5 for the next few months.

ECU lives under the bonnet:


Not sure this ECU can be easily replaced as it uses some sort of bus to control the instrument cluster. I think it also takes care of the aircon through the bus and I do not want to loose that either !
Anyway: something to research in the next week

What year is this beauty? I can ask my guy for the schematics

We might have this connector part number but not a source for new, but used could be good enough http://rusefi.com/wiki/index.php?title=Hardware:OEM_connectors

Year is 9-1999, so one of the early ones. Mine is a manual, I avoided the 2JZ IS300 because they were never sold as manuals in Europe
I will be looking for one of these on a scrapyard as I have some broken interior bits I want to change, maybe I can get hold of an ECU too.
Are you aware of any other Toyota's running the same ECU plug ? I did a quick Google search and I think the 3S-GE JDM Altezza RS200 seems to use the same ECU connector, maybe more Toyota's run this ECU Being in the Netherlands this will mean most scrapyard Toyota's will be: Yaris, Corolla / Auris and Avensis. A Lexus, MR2, Celica or anything alike will be quite rare..

My source of information is eBay. I look for used ECUs from different years and models and look at the pictures.

Also AEM harness extensions application notes.