hey optimo. the car is down from MAY! the reason is, I left the country at the end of june and came back only 3 weeks ago. SO THAT's why it took me so long to come to this phase fo the project. If you, or someone else does it now, MS could be installed in 2 days. I'm not sure about the tuning part since I'm onl getting started with it.

 

ahhhh ok well that makes me feel a little more comfortable with trying it out. seems like it will be soooo much cheaper then the current favorite set up on here.

did you buy your MS allready put together? or did you do it all by hand

 

okay, the latest update:
I set up my VE table pretty good so it idles around stoich, its rich when i step on the pedal, and when under light loads it's around 1.15. (i have this strange o2 sensor, it IS narrowband, but it's LINEAR. and gives me out the values from 0.5V up to 1.5 V, like in this chart: http://bagodoosh.home.comcast.net/~bagodoo.../lambda-afr.gif )
so, yesterday i went out of the garage and tried to drive it. I dont have the accel /decel settings set up, so it buckles, but only when trying to drive off from a stop. So after a couple of runs i floored it, well, not really floored, but let's say, pushed the pedal down about 20%...and IT WENT MAD!!!!!!! smile.gif wooohooo when this is gonna be set up perfectly, the car's gonna be CRAZY!!!
but, there is the problem- i know now i have the knowledge to make the car come to this level(which MS to use, sensors wiring, basic settings, VE table...), as it is roughly tuned. BUT fine tuning, that's difficult. And reliable tuning, that's even harder. And I'd need somebody to check my configuration(i'd love to post a log in here, but since I have this strange linear "narrowband" 02 sensor, it's no use, cause my logfiles dont have a AFR lambda reading), i dont wanna burn my engine after soo much efforts and wasted time.
I talked to this guy, who made 14 MS projects already and this is his profession. And he wants 500 Euros for tuning, thats 680$. I think that's A LOT of money, but he doesnt want to do it for less. I tried to convince him for 2 months now, but no luck.
So, is anybody prepared to invest a bit of money to get a perfectly set up Megasquirt configuration (spark, fuel, everything) for a FORCED INDUCTION Tiburon 2.0 beta engine, supercharged OR turbocharged?! I know I am, but i dont have 700$ on me.
I dont want to sound rude, but i think quite a few guys on here could benefit from my setup. You get yourself a MS, and input my setup files, and you're ready to go, ready to go hard from a a start! Of course this would only be okay for a 2.0 beta engines.
what do you say?

 

That picture you posted is not a linear. If you send me a log, you can extrapolate the AFR from the O2 sensor voltage if it is indeed linear.

$700 is WAY to much man.... Tune it yourself. Just keep plugging away at it - you will get it reliable. Then fine tune it on a dyno if you feel you need to after it is driveable.

 

unfortunately, the car doesnt work anymore.
SHIT.

I dont know what happened. It was okay and drivable on saturday, and on sunday I decided to put MS in charge of ignition too.
So I CUT the 3wires going from stock ECU to my double coil connector
diagram:


and connected the two MS spark output wires (through two vb921 modules), wire/pin #36 to spark A (pin#2 on connector-coil side) and wire/pin #31 to spark B(pin#3 on connector-again, coil side)
this information i got from Matt from DIYautotune.com:



I already have my CKP sensor INPUT wired up from the beginning, when doing the installation:


Looking at the provided diagram,

it looks like pins 2&3 will be your + and -
for the actual sensor. pin 1 looks like it's for shielding.

Wire 2 as - to DB37 pin 7 and 3 as + to DB37 pin 24




MS obviously got a proper INPUT signal when I used it for fuel only (i was told MS needs a tach input signal also when only controlling fuel, right? SO if it worked, i assume my input VR sensor is wired up properly!)

OKAY, now to my problem.

After I disconnected stock ECU ignition from the coils and ran 2 ignition output wires from MS to my coils,
I COULDNT GET my ENGINE TO START!!!

It was cranking, but wouldnt start or even cough!

I had all the right spark settings (posted at the bottom of the post).

The thing is, after this NON working I connected things back to where they were before, so MS running fuel only, and MS tach input wires (pin#24 and #7) split into CKP sensor wiring, and RECONNECTED stock ECU- to -coil wires.

CAR STILL is cranking, but again I cant get it to run! Not even idle!!


What could I have done wrong? Could I have fried anything? I checked resistance of my double coils and everything seems to be okay.

Do you have any suggestions on what is going on?

I'm clueless... Obviously, when I cut the wires from stock ECU to coils and run MS wires to those coils, something must have happened. It's so wierd, the car waas DRIVABLE a night before!(when only on MS fuel control)
I'd assume when I'd wire everything back to as it was, it would run again, but DOESNT!

HELP please!!
02.gif 02.gif 02.gif 02.gif 02.gif 02.gif




spark settings:


plus this:

p.s.: i checked if i have spark- i unplugged the spark cables, unbolted sparks, and cranked the car with spark outside- there was no spark. I inspected coil resistance, secondary coil resistance, CKP sensor resistance, and EVERYTHING was normal values.
Funny, when cranking with sparks inside, i thought the sparks will get wet from the fuel, but they didnt. I could smell gasoline though.

 

I think you are going to need some kind of ignitor to fire it with. Look at the prs4 diy. Jon is the only one who really has it running and is using an external ignitor since the unit doesnt have one built in. I havent figured out what hes using yet but Im hoping he lets me know soon so I can give it a shot.

 

Good thought Ericy321, but the MS has VB921 ignitors built into the circuit. No external ignitors are needed.

Kennman, I wish I was closer to come and help you out. Keep plugging away at it - you WILL get it working.

 

ok, ITS WORKING AGAIN! It was nothing a very very thin screwdriver couldn't handle so it's making 0.35 bar of boost, but i do have a problem with my leaking bypass actuator valve, it looks like this:


so, does anybody have one laying at home in the garage? I could really use it...

THANKS guys!!

 

We don't have those on ours. Where in the heck is that mounted?

 

well first off your asking for a part for an aftermarket supercharger doubt anyone will have one. More specificaly if you specify what model and make its possible that if it was a pull off supercharger from a factory car (exp pontiac gtp) than its possible somone has one without knowing. Let us know what make and model of charger and yes it possibley can be found.