New toy WILL play :-D

[grinder]

cheers prof

the ECU will be with you today - although it will need signing for i think ??

the PO woman said it will be dinner time

can you let me know when you get it - i did insure it for £500 just incase

Stu

[grinder]

prof : they tried to deliver it already and have a left you a "you wasnt in" card

[Prof]

I know - wife just MSN\'d me to say the cheeky bugger didn\'t ring or anything - she knew they were coming today, so she was waiting. :2Mad

The parcel bloke is different from our normal letter guy, he is pretty good normally.

The post sorting office is on my way home, the problem is I will be back later tonight as we have something on at work.  This means I will be picking it up Tuesday afternoon.  Should be ok, as I can get it fitted up Tuesday evening and posted on Wednesday - so should still make the weekend for you ! :cool

[grinder]

i hate it when that happens !!

its strange - sometimes they dont ring or anything

then other times they do daft things like leave it behind the bin ??

if its here for the weekend then thats superb - but dont go out of your way for me though Dave

i will picture your face when you actually look inside the ECU - me and my mate laughed for about 10 mins when we saw it

Cheers

stu

[Prof]

I was guessing your pictures didn\'t tell the whole story !

That thing with all the rust on it was once a resistor of some sort, looking at my ECU.  I will post up pics tonight of the donor one - it looks a lot cleaner! :rollin

Did you find anything alive in there?

Cheers,

Dave.

[abmunro]

I really find this amazing. As I\'m suprised I had it running 6 weeks before you bought it.

The pics of ecu look like they have been like that for years.

Lets hope it runs after you have sorted this...

[Prof]

Water contamination is a funny thing.  It could have been like that for a while, but it\'s only when the water / water mixed with flux from the soldering process begins to corrode or elctrolyze the components and tracks on the board that the problems start.  Some capacitors will absorb moisture, and go from a relatively non conductive component to a conductive state, which is less that ideal, as they are normally wired across all the sensor inputs acting as suppressors.  This means the sensor values will be all over the shop.  Likewise, current passing across the board into areas where it shouldn\'t could produce all sorts of undesirable effects.  If outputs are feeding back into inputs, then basically the whole thing starts acting like a metronome - flipping between 2 unstable states.

From the pictures Stu posted, there is a white / orange bloom around the components, which suggests the water was contaminated with iron oxides (rust) and some sort of salt deposit - possibly from the flux left on the board.  Both of these will make the water a lot more conductive - and try putting a couple of leads from a 12v battery into water with a little salt or something in it - you will see what electrolysis is all about !

There is normally a protective spray on lacquer layer on the PCB, but it won\'t last long under that kind of chemical assault.

[grinder]

dave - there was nothing alive in there no

tony - im also shocked that it did run - maybe when you reved it and it went to a different map - then it shorted itself out

fingers crossed this fixes it

Stu

Dave - if you get chance tomorrow - can you take me a pic of the knightsport sticker - i might email them and see whats been done to it

[grinder]

the footwell is very rusty down there - so all what you say makes sense

like you say - need to find the leak next ( although would like to hear the car run first before i go mad on it )

wonder if the ECU will fix the head lights

Stu

[Prof]

Dave - if you get chance tomorrow - can you take me a pic of the knightsport sticker - i might email them and see whats been done to it

Will do !

Would be interested to know as well !

[grinder]

cheers matey

there is some guy on here has done it - so its worth a shot

[grinder]

its ref this thread :

http://www.mazdarotaryclub.com/forums/showthread.php?t=30318

so would need the info from the top sticker ( not sure what it said - but it said something )

they may beable to check on the computer to whats been done

fingers crossed for

.9 bar
increased fueling
9K rev limit

LOL

[Prof]

more likely they took the rev limit off - but buzzer still sounds, and populated the missing part of the map above 8.8 PSI with the removal of the Fuel Cut to rear rotor - basically built in FCD, but with the mapping to go with it.

Also probably tweaked the maps lower down for more torque at the expense of emissions / fuel economy (not much change), based on after market exhaust and intakes.  It will make quite a bit more power with a boost controller to lift the boost limit.  I never got mine dyno\'d when it was running 12-13 PSI boost, but it felt a hell of a lot quicker than it does now, and it isn\'t slow now

you\'ll have to have a play when it comes !

[grinder]

i have sent them the pic off page 5 - i think that has most of the stuff they will need

although a little bit of checking around and a lot of guess work

0.8kg = 11.37psi = 0.78 bar

the car is running stock intake and exhaust though - so still not sure why its got the knightsport ECU ??

oh well eh - the plot thickens

Stu

[grinder]

got an email back from knightsports :

The spec of #310767 is as follows;
 
Type Advance
Mazda Stock Turbo.
Exhaust : All parts is Mazda stock.
Boost : 0.8kg/cm2
Rev limit : canceled.
 
Best Regards

not to keen on the rev limit removed - although not sure what that means ??

i have mailed them back asking if the fuel map will have been altered to cope with the boost

could be an interesting car to drive to be honest !

Stu