Seicento Monster Cento/ECU Master Thread

[Honeymonster]

Well here is my preliminary wiring diagram based on the Sei manual and the ECU master documentation for FIT.



Not sure why the don't use the 5v supply from No. 12 as a refference for the map, but if it aint broke don't fix it I guess. There are clearly several ways of doing this. I could do away with IAT and use it for another function for example, however I'm fairly pleased with it how it is. I will probably use No.2 for a 2 stage switch as I'd like a "fast" and "faster" switch on the dash.

I'm sure I can get a fairly decent tune without the need of NB or WB interfearing and "cough cough" we don't have an MOT .

These are the two diagrams I used as a base:

 

[centoproject]

updates ? and useful diagram

 

[Honeymonster]

The front end will start mid day tomorrow and be finished Sunday morning.
And then guess what happens after that...
As for the diagram I've added a few notes to make it clearer, but other than that can't fault it. Calibrating the sensors will be fun but once I've done it, no one else will probably ever need to.

 

[ycming]

The front end will start mid day tomorrow and be finished Sunday morning.
And then guess what happens after that...
As for the diagram I've added a few notes to make it clearer, but other than that can't fault it. Calibrating the sensors will be fun but once I've done it, no one else will probably ever need to.

View attachment 103205

Just a quick question, see things like injector and TDC sensor, they still all get plugged to the original ECU right ? So do you just splice into the wires?

Thanks
Ming

 

[Honeymonster]

Everything apart from the TDC Sensor wires (you're intercepting these).

One wire from the TDC sensor goes to ground and the other goes to the DET3.

Then the 2 wires from the DET3 go into the original ECU TDC sensor conections as numbered on the diagram.

Everything else just piggy backs on to the existing cabling.

The original injector cable has a resistor put across the output so it thinks the injector is still there.

And for a turbo conversion a Zener diode needs to be added to the MAP as a FCD.

FIT Instruction manual is very clear on this and good bedtime reading.

I will take pictures and list colours when I install the ECU, can't see it taking more than a few hours.

Setting up however will take just a bit less time than a SA as the only advantage as the timing base is already there for you.

 

[ycming]

I am liking this , as i can just just understand it from your diagram, do a guide for dummy please .

Thanks
Ming

 

[Honeymonster]

No problem I will do it step by step with photos during the ecu fitting.

 

[Brin]

Very nice and useful diagrams I maybe going for a stand alone ECU for my next attempt not sure which to go for though atm...just depends on the simplicity of the wiring haha...im liking the thought of a P75 inlet manifold I maybe going down that route also and fabricating an adaptor plate to hold a cable throttle im not liking this restrictive plastic manifold haha

EDIT: with with det3 can you use any injectors you wish for example you won't have to use extra injectors like MF2?? You just use one set of injectors and map the ecu to give correct fueling??

 

[Honeymonster]

EDIT: with with det3 can you use any injectors you wish for example you won't have to use extra injectors like MF2?? You just use one set of injectors and map the ecu to give correct fueling??

Yes Brin, the manual is here:

http://www.ecumaster.com/download/DET3/Digital ECU Tuner III - FIT Manual English.pdf

The unit has 2 sets of fimware one has stand alone fueling, the other runs like most Japanese piggy backs and works by modifying existing signals so you can run bigger injectors etc. I will be using the Stand alone fueling option (FIT) and have to be honest am not keen on the other method which the manual for is here:

http://www.ecumaster.com/download/DET3/Digital ECU Tuner III - Manual English.pdf

Still Brin since you will need to have yours set up on a rolling road you might be better off discussing with your tuner what brands of ECU they are prepared to map for you. I doubt all will be willing to setup something they are not familiar with.

 

[Honeymonster]

Small update.​

New wishbones, powder coated hubs, wheel bearings, front lines, rod ends, top mounts etc. fitted.​

Sorry for rubbish pics only had my by then oil covered phone with me LOL.​

Anyway front right hand brake disc was binding against the caliper carrier. Nearly ended up having to ride the little pedal bike home in the corner of the picture as it was making a dreadful noise. ​

Turns out one of the carrier tabs on the powder coated hub must be bent. I've had to shim it out so I can use it and will get the hub I took off powder coated which is no big deal as I 'll have to take most of it apart again to fit the GT calipers, vented/grooved discs and new shocks. Did have me scratching my head for the best part of an hour though. Thought it might be caused by thick coating at first, however thicker coating would have helped not made it worse so it's definetely being caused by a bent carrier mounting tab.​

FItted the Magnex back section too, forgoten how hoooooj it was. LOL
Still it's not noisy and it won't rust.​

So much more to do...​

 

[centoproject]

looking good nice clown bike

 

[gazzaman2k]

hope the engine gets put to use it has never been fiited in a car since i built it it lived its life on the engine stand in my shed lol

subscribed to this should be a best when done

 

[Honeymonster]

hope the engine gets put to use it has never been fiited in a car since i built it it lived its life on the engine stand in my shed lol

subscribed to this should be a best when done

Indeed some of the bits you had fitted new had seized up due to lack of use. It seemed odd changing cam belts, water pump and tensioners on an engine that hadn't even run.

Don't worry though Gaz it will be put to good use real soon.

 

[Honeymonster]

Some new shiny things arrived today:





Very large difference between the price in their ebay shop:

http://www.ebay.co.uk/itm/160632283937?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

And on their website:

http://www.lkperformance.co.uk/brak...scs-drilled-grooved-front/344710?carId=149888



Anyway I obviously got them from the ebay shop and they only charged me £5 postage which is a miracle for Jersey.

I now have a set of Uno turbo brakes and Grooved/Vented/Drilled discs spare but due to their rarity I'm going to hang on to them for a bit incase I go back to 13" rims.

My header tank cap blew off yesterday as well, rather annoying but it was a really hot day. The car wasn't over heating and I only changed the cap a few weeks ago, although it was a Firstline cap and these seem a bit soft. I think the threads are fooked on the tank as the caps just dont seem to sit right, I've ordered a new tank and cap from Eurocare for a permenant solution. I was convinced the head gasket was gone on this motor as it has a lumpy tick over, is a bit down on power and uses a cup of water a week. However we did a sniff yesterday to see if that was why the cap popped off and it passed with flying colours.

It seems like Blu isn't the only one with a mysterious water leak however since the motor will be coming out in a few weeks I'm not going to put anytime into resolving these issues. If the engine dies tomorrow I really couldn't care less as long as it gets me home. I just hope it's not the damn heater matrix.

I put a big jubilee clip around the tank cap and just lightly nipped it, problem solved for now.

 

[woj]

Well mate, you are not the only ones with mysterious water leaks. I have one too. For two years It makes about a medium cup of water disappear every 3-4 months or so. I even know where the leak is (occasionally I see the drips under the car in the morning), just that I can't be bothered to fix it as it requires lots of "access work" in my case

 

[Lecook]

Any linkys to where you bought your ecu from??

Lee

 

[centoproject]

if you are after the det 3 here's the link
http://www.ebay.co.uk/itm/ECU-Maste...arts_Vehicles_CarParts_SM&hash=item3f155a41c6

 

[Lecook]

Your a diamond

 

[Lecook]

Would it be possible to use this to convert spi to mpi without too much wiring?? And thus be able to fit a p75 engine into a spi ecu running the injectors via the piggyback?? Without the turbo

Lee

 

[blu73]

pretty sure for a NA all you need to do is splice the injector wiring into 4 for each injector and that'll work fine.. But wires not my strong point lol