Technical People of the Cento section, i need your help!

[Dragon Man]

Hey guys,
it has been a while since i made a thread in the cento section, but i wondered if anyone could help me on a little idea i have.

i want to stick a bigger engine in my panda 4x4, but i need some info on it.

please >check this link out< for the thread over in the panda classic section.. share with me your knowledge!

Thanks,
John

 

[Dragon Man]

hey guys.. i have an engine now! from a punto 75 but im having issues with the ECU/immobiliser


if you think you could help me out please check here:
https://www.fiatforum.com/punto/354826-any-free-way-remove-code-system-ecu.html

 

[Dragon Man]

hey again guys, does anyone have any wiring diagrams for any of the sporting engines?

theres a seicento sporting in our scrap yard i could take the ECU off... could i stick this on my punto 75 engine?

 

[fingers99]

My guess is that -- if MPI -- it would have a hissy fit. The Mk2 Punto and MPI Sei ECUs expect a knock sensor and a cam sensor (and etc.).

If SPI, get the ECU, key and code box.

Wiring diagrams for both SPI and MPI Sei in the Downloads section in the Seicento Technical Manual.

Once it's downloaded, look for Volume 1, Section 4, Engine Command.pdf.

 

[Dragon Man]

hmm its a sporting.. looking on parkers its gonna be a MPI..
http://www.parkers.co.uk/cars/reviews/facts-and-figures/fiat/seicento/hatchback-1998/15366/

wonder if its a sequential injection system rather than batch... and like you said if it has the knock and cam sensors.. ill have to tare into the engine and see if its all transferable.. more sensors should mean better fuel economy..

be nice to have sequential injection too. if all of those sensors are mounted in the cam cover i will be laughing.

if not, i guess ill just nick the punto 55 wiring loom and ECU + key (i already have the code box from off it )

sadly i dont have anything else to go on in the scrap yard.. maybe something else on the braking list would work?
http://www.albertlooms.com/content.aspx?id=10

sadly its all mk 2 puntos though..

 

[fingers99]

If it has a cam sensor it'll be semi-sequential.

Not sure what to suggest. As it's going in a Panda the emissions will be pretty lax: you might try the P55 set up, maybe knick a fuel pump off an MPI car?

 

[Dragon Man]

well i am going there now... so ill grab as many bits as i can afford.. i want to try to get the ECU's and wiring looms from off both cars given the sie electronics can go on the p75 block/head.

when in Rome..

 

[Dragon Man]

all of the ECU's were gone from off the cars..

i have a 6F ecu from off a 899 cinq.. im going to play with that and see if it will run it. it should do.. and no immobiliser!

 

[Dragon Man]

ok, bit of an update. the ecu is all wired in, the fuel pump is plumbed in, the exhaust is on.

the engine starts after lots of cranking and feathering of the throttle but if left alone it will cut out. sometimes it will idle but as soon as you rev it cuts out.

cant quite figure out what is wrong. i have no injector light on (it comes on with the ignition) and it never comes on when i try to get the engine to run.

engine is earthed to the body of the car in multiple points all earth for the ecu have good connections to ground.

no leaks on the intake manifold..

anybody got any tips?

ive asked around a few places to get the original ecu uncoded but because the thing is so old, it cant be done :/
and with it being an MPI ecu other people cant uncode it.

also, where is the engine number on a 1.2 8v engine? ive looked all over the block and cant find it.. (and i painted it while i was looking)

check the car out in my sig guys.. Fallout

 

[Cento186]

I can't help you with it cutting out, sounds like a strange problem... What ECU are you using?

The engine number is in the same place as the others, on the block/square above the water pump.

 

[Dragon Man]

on the flat of the water pump? as you look down on the engine? its totally blank...

 

[Cento186]

on the flat of the water pump? as you look down on the engine? its totally blank...

Yep thats the place, from what I've seen they're always hard to/impossible to read on the older engines.

 

[Dragon Man]

oh great.. hmm any other way i can get the engine number?

i have just removed all paint and checked it over again.. it is shiny metal.. but not one sign of a number.. :/

 

[Razman]

176.A8.000 is the engine number for the P75 engine, all years I do believe.

 

[Cento186]

oh great.. hmm any other way i can get the engine number?

i have just removed all paint and checked it over again.. it is shiny metal.. but not one sign of a number.. :/

Do you have the VIN of the car it came from?

What are you after the number for specifically?

 

[Dragon Man]

can anyone tell me the number structure?

how it is punched out on the block.. i think i have something

should it look something like this:

A12BC
345678

do i have all the numbers or am i missing some?

i feel like Walter white here using acid to remove the metal to find the warped metal pressured under where the numbers would have been stamped

 

[Dragon Man]

176.A8.000 is the engine number for the P75 engine, all years I do believe.

well if thats true, i got "L76AS" that could be a 176A8. i have a load of other numbers under that though

the car was scrapped, so i cant get the VIN.. the engine was removed from the dona punto 75 to put in the fallout panda.

 

[Cento186]

well if thats true, i got "L76AS" that could be a 176A8. i have a load of other numbers under that though

the car was scrapped, so i cant get the VIN.. the engine was removed from the dona punto 75 to put in the fallout panda.

As above thats the only P75 engine code, I can't really read the code on mine either.

Not that it matters as all the parts are pretty much the same anyway, just make sure you get the mpi inlet/exhaust gaskets not the spi/P60 ones - only difference I can think of off the top of my head...

Edit: I think the numbers below the engine number are random/unique

 

[blu73]

yes 176a8 is the engine code, the numbers that follow are the actual engine number - they are nearly almost impossible to make out - but just write whatever it looks like to you, as if anyone checks it, an insurance inspector for example, he will be in same boat as you except will have the number you got and that will no doubt be close enough lol.

But it will be several zero's and then some numbers, no letters

 

[Dragon Man]

hey guys, i have an ecu key and code box. its wired in but i have no idea what colour wire is the fuel pump. (the code box is wired into the grey green wire on the ECU)


i assume its the white and brown one, being a thick wire so i have connected it to that.
so anyway, i have no dash connected yet. so i have no lighting.

im flying blind here as i cant find a wiring diagram anywhere, so its all guess work. i assume that 2 wires the same colour mean they do the same thing. (with the ECU and code box)
and im not paying out for a haynes manual that i am only going to use once.. for something that should be on the internet already!

when i turn the key to ignition the fuel pump comes on for a few seconds then turns off.. as normal.

however i go to start the car and get nothing??
when the key is removed from the loop aerial i still get the pump "prime" the system.

my guess is that i have wired the pump into something wrong, and the code system is STILL giving me hell! even with all the right keys boxes and ECU!

anybody have any ideas?


and i just really want to put this out into the world:
i find it super impressive that there are absolutely NO punto 75 wiring schematics out there on the internet at all! its insane! everything but the punto 75! its kinda one of those things where you want to ask the whole world..
"wtf guys.. why dont you help another guy out and just clearly tell people what colour wire goes where.
- anyone who wants to put a P75 engine in an another car"

when i find out what wire does what i WILL make a diagram and give out what colour wire goes where.