hey guys and girls im after a few answers about the D4 connector on the sei sporting,

basically im going to swap the engine out of my 899 (i know it doesnt have the D4) for a punto 1242 8v and eventually a 1.4 16v engine.

firstly i wanted to find out what the d4 plug actually is, is it a block to connect the engine loom to the car loom (ive had peugeots in the past ant they were just one connector to connect the engine bay loom to the rest of the incar loom) or am i totally barking up the wrong tree

i understand that i dont have to have this plug for the 1242 8v but it will make life easier when doing the 1.4 conversion

please any help will be great as i really dont have a clue about engine electrics and need to learn as much as i can ready for the 1242 conversion


cheers guys

Lee

Not sure which connector that is. You'll find everything you need to know in the Seicento Technical Manual in the downloads section.

If you're looking at an eventual 1.4 transplant it makes sense to go for an aftermarket ECU now.

eventually it will be ran from a standard 1.4 ecu(i think lol) my plan is to learn along the way, from what i understand aftermarket ecus are fairly hands on and as i have no idea on anything about them i will just use a standard sporting ecu for the 8v conversion and whilst collecting the bits for the 1.4 i may meet more people that know more about aftermarket ecus (i hope)

i just want to find out exactly what this connector does and if its an essential part of the 8v conversion and if i were to wire it in now would it save me some hassle when the 16v engine is finally fitted???

cheers guys

Lee

eventually it will be ran from a standard 1.4 ecu(i think lol)

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No it won't! The 1.4 ECU is canbus and Fly By Wire. At least one of the 1.4 ECUs can't be remapped (which is exactly what you'd have to do as you need to run a different inlet and exhaust (if, that is, you could overcome the canbus/FBW problem). There are lots of threads by J333EVO/foxyemz, Arc, Kripit, and even a guide, I think, in the guides.

my plan is to learn along the way, from what i understand aftermarket ecus are fairly hands on and as i have no idea on anything about them i will just use a standard sporting ecu for the 8v conversion and whilst collecting the bits for the 1.4 i may meet more people that know more about aftermarket ecus (i hope)

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Aftermarket ECUs are only hands on if you go along the build it yourself, map it on the road route. Otherwise, you just buy it, wire it up and take it to the nice man with the Rolling Road who will set it up for you.

Note that this only makes real sense for MPI engines. Why not go for a 1.2 MPI?

i just want to find out exactly what this connector does and if its an essential part of the 8v conversion and if i were to wire it in now would it save me some hassle when the 16v engine is finally fitted???

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Not really. If you go SPI, you'll have to re-do a lot of the wiring when you go MPI (as you'll have to).

cheers fingers so i dont actually need the d4 connector will i need the punto loom for the 8v conversion ive seen on here somewhere recently that a 899 was converted to 1.2 by just lengthening some of the wires, is this the case??

cheers

Lee

anyone got a picture of the connector so i can go and take a look down my local scrappy to have a look into it

i think if you cant find the info thats already out there maybe a engine conversion is not for you

my car didnt have a D4 connector, now it has and changed the whole in car loom


Ash

Lecook said:

cheers fingers so i dont actually need the d4 connector will i need the punto loom for the 8v conversion ive seen on here somewhere recently that a 899 was converted to 1.2 by just lengthening some of the wires, is this the case??

cheers

Lee

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Depends on the Punto engine! If you've an SPI engine, the loom you have will be fine (compare the diagrams) but you'll have to lengthen some wires. If you have an MPI engine, get the engine side harness off a late MPI Sei and the ECU (wing mounted). Mid period MPI Seis and all MPI Punto 8v cars have the horrible micro ECU (not wing mounted) which can't be re-mapped and is very prone to failure.

Incidentally, Peter (used to be on here as Oldschool) of GSR and others say that the early 16v 1.2 ECU is very robust and easy to remap -- that might be a better choice than any of the other FIAT ones. It should be possible to remap that for the 1.4s. If you find a 1.2 16v in a scrappy, I'd be inclined to use that rather than an 8v engine............. at least, pinch the alloy inlet mani -- you'll need it later for the 1.4!

cheers fingers

ive found a spi 8v engine in the scrappy round here ive managed to get a deal with the engine box ecu loom and shafts for £200 what else will i be needing as im starting with a 899

ive also seen a gt in the yard thats still go the brakes so that might be my next investment

will i need the shifter assembly ??

cheers again

Lee

Punto shafts won't be any use on a Sei (too long, surely?). Take em and flog them. The ECU should be the same (only the chip is different -- talk to Gazzaman2k). For box do you mean codebox or gearbox?

The gearbox will be OK (will have lower gearing than a Cento, though), not sure about the cups. You'll need the selector box out of a Sei Sporting, and cables from the same (or a Cinq Sporting). The remote selector (the bit that's in the car) should be OK, but you won't have a reverse detente.

fingers99 said:

For box do you mean codebox or gearbox?

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was referring to the gearbox

fingers99 said:

The gearbox will be OK (will have lower gearing than a Cento, though), not sure about the cups. You'll need the selector box out of a Sei Sporting, and cables from the same (or a Cinq Sporting). The remote selector (the bit that's in the car) should be OK, but you won't have a reverse detente.

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what do you mean by the selector box is that IN the gearbox??as iive never had a gearbox this will be a learning curve

will have to find out about the cento sporting shafts and cups but for what i am paying for the lot im quite happy if there th only bits ill be needing

i plan on getting the chip from gazzaman aswell

things are looking up finally
i got a job too lol:slayer:

cheers

lee

I'd be inclined to just use the ECU that's in there and a new chip. It may even be possible to burn the immob code onto the new one. Talk to Gazzaman, it'll save you time and maybe make the car a bit more secure..

On the very top of the gearbox is a selector box (the bits the cables go into). I've not tried it, but you may just find that the 899 selector box will fit fit the Punto gearbox, in which case you can use the 899 cables. 10 minute job -- old selector box unbolts, line up the slots, pop new one on.

Congrats on the job.

Would the ecu in my 899 run the 1.2 without a remap ???

Hopefully have the engine by next Friday so will start stripping it down for the rebuild what should I buy for it as it has 116000 on it would it be smart to do the rings ect???

Cheers

Lee

At 116k I'de look for a new engine.
Even Hondas are getting worn by then.
The 899 ecu will run like an 899 ecu as that is what it's mapped to do....

Lecook said:

Would the ecu in my 899 run the 1.2 without a remap ???

Hopefully have the engine by next Friday so will start stripping it down for the rebuild what should I buy for it as it has 116000 on it would it be smart to do the rings ect???

Cheers

Lee

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You can't remap the SPI ECUs, only chip them. The chips are so cheap it would be plain barmy not to.

As to the engine, the mileage is high. Rings, inspect the main and big end shells, check the oil pump, change water pump, check the valves and guides, crank and cam seals. Have a good look at the gearbox oil seal and bearing -- Puntos seem to knacker these, while Centos don't. New fastners on the rods and cylinder head.

Problem is, you'd struggle, I think, to find an 8v 1242 with substantially lower mileage unless it was an MPI engine. Which is almost where I came in..........

That's what I thought I can't seem to find a engine that cheap with all the ancillaries ect plan was to check the big ends and do the gaskets and seals, may have the head machined ported ect flywheel lightened new clutch and thrust bearings, it's not going to go ahead until I know exactly what I need, I have a good friend that will help me strip and build the engine chances are the conversion Wont be started until march next year unless the 899 dies before hand (rattly chain and thrust bearing getting a bit worn now and I gathered the new engine would be better than replacing the bits that are worn

Cheers

Lee