Hi all,
Not long since I brought the car - some may recognise it from PF/FF last month. I have been having some trouble with it on the engine management side. Its a fiesta RST engine in an f reg orion - which was mfi but then i assume the car had an EFI escort loom used in the conversion (as im told this is simple), which was done by Matt Lewis, well MLDevelopments.
Sorry long story coming up:
The chip was removed im told when the chip was knocked out by an mot centre and the car wouldnt cold start. He was told by engine advantages the chip was fried so he took it off and it starts and runs fine bar some boost cut due to the knock sensor. It also seems to be a very rough idle so i suspect the POT isnt wired in correctly. espeically as my fault finder keeps flagging it up and its a brand new POT i brought from Ford. Oh and please note it has NO AMAL VALVE - which i am told causes no really problems as i have a -31.
When i got the car i took it off down to Power Engineering for a tune up and 165 Superchip. They thought it might have a few wiring problems as the xr loom had been used but all seemed well and it made 171bhp on the rollers, I then drove home with no problems with the car. Then the next morning i came out to it and it wouldnt start and everything was clicking on and off. i.e. Injectors and fuel pump kept priming. The starter turns fine and i have got it to start before after lots of cranking, and the hotter the engine gets the easier it starts and clicking reduces.
I took the chip of and all the clicking went away and it started on the key much to my surprise. So i took it back to PE and Iain cleaned up the ECU and reflashed the chip. He took it for a test drive and said it seemed lazy with the chip on so to leave it off until i fixed the few wiring problems. I did try the chip again the next morning and the same thing occured so i have left it off. I was sceptical of the wiring being the problem as its fine without the chip so i decided to try and new ECU. The ECU makes no difference unfortunatly so its not that either.
I thought id try swapping a few wires around to the ECU pins today using a guide i have, but on double checking it with a post of FiestaTurbo im abit lost. As there guide contridicts what i have in mine and i dont want to do any damage to the car as it does run at the moment.
This is the thread that confuses me:
http://www.fiestaturbo.com/phpBB/viewtopic.php?t=77331
And this is the guide i have (although its seems to contridict itself anyway when it comes to the MAP sensor):
Converting an 8v 2i loom to OFAC
1) At the ECU, pin no. 27 (marked on the multiplug, brown wire) needs moving to pin 8, which is empty (this is the CO adjuster signal wire).
2) Pin no. 45 (brown/yellow) needs moving to pin 27 - this is for the MAP sensor.
3) EDIS Module pin 2 (blue/yellow) may now be disregarded as it is not used by the 0FAC ECU (pin 28 on ECU).
There are no MAP sensor pin changes as the OFAC MAP sensor is the same plug as the 2i MAP Sensor, so just plug and play.
Does anyone know for sure what changes need to be made?
Has anyone come across these problems before and know a solution?