Building a MS1 ecu for a Punto GT

[hobizoli]

Wich pin is on the GT loom connector the injectors 1-4 and wich is 2-3 (16-17 and 34-35?)? What sould be the problem, when the 2-3 spark plugs are black, and the 1-4 are brown? Overfuelling, but why only that two only? Output defect?
When i solder the 2-3 injectors on the 1-4 injectors output, it should be OK only not working in semi-seqential mode, just in batch mode, but it would be working in OK, right?

Injectors are now RC 440cc/min High-Z, spark plugs are brand new NGK's, and have brand new spark cables too.

[munkul]

I have ran into a problem with mine.

I have built it mostly all up now, but when i got to the 2nd coil driver mod, there is only one extra 330k resistor in the modkit?!!! I bought it all from DIYAutotune, so have they forgotten to put the second one in, or am i expected to just have them lying around like any normal person obviously has?

Ive built it up as a single coil driver kit now, with the current overload protection circuit as well, but when it comes to putting the second coil driver in, can i leave the overload circuit in and only short one of the big resistors - say, R38 - so it still has some semblance of overload protection?

[birdraceruk]

IIRC correctly I had to buy an extra resistor when I built mine from DIY Autotune.

[munkul]

thats a bit **** then. I hope Maplin carries them.

[birdraceruk]

I can't remember if I got mine from eBay or Maplin they cost pence.

[munkul]

i know, its a tiny cost so i dont know why DIYauto didnt chuck an extra one in if they know you need it.

[DR_EVIL]

I used one of the ones for the LED, dont need the lights anyway.

[munkul]

a trip later to maplin and im back in business.

Well, two trips to be honest, because the numb f**k in there sold me a 3.3k instead of 330 and i drove 10 miles home before checking it.

[DR_EVIL]

They dont even know what a resistor is these days, Lol. I went in for a 1k and they gave me a 10k after using a multimeter to work it out.

[munkul]

pete, did you get the jimstim?

I am trying to test my 2nd coil driver circuit but it is showing nothing, and i wondered if it was because it is set for single coil (basic trigger) in my tune. If i want to set wasted spark, it needs a different type of trigger, which the megastim isnt able to provide.

Do i need the jimstim to test it properly? or is there another way?