I've fitted a fiesta rst engine into my efi xr3i and I jus can't get the thing to start I have spark I have fuel I followed a guide on RS-Bible site but it jus will not start I'm using OFAC like it said to use jus want to take it to someone to get that thing running

Can anyone reccomend somewhere that's not goin to rip me off don't want to spend a fortune when i could jus convert to aftermarket managment

 

Jano at oddkiddcreations

 

Gonna call him in abit

 

Right unfortunatly jano did not want to help as fiesta turbo managment is a nightmear (which I kind of knew)

So anyone else? I'm gonna try mark at grove garage but have a feeling its goin to be similar story

 

silly question..... when you turn the key to start it in the engine running position do you hear the fuel pump prime then STOP?

also you have got the correct crank position sensor and plate to make it pulse ?
I had to make one when I upgraded to a steel flywheel!

 

Yep I replaced the pump I've got fuel that's not the prob and yes as far as I no I have the sensor that came with the engine I no the engine worked because I drove the car lol

 

Think its just gonna be a case of going through all the sensors but I don't have and spares at all or any idea what voltages etc the sensors need so just want to take it to someone with Abit more knowledge

 

ok, grove garage is good I have used them but a long time ago! as regards the "silly question..... when you turn the key to start it in the engine running position do you hear the fuel pump prime then STOP?" if it goes continuously the ECU is functioning but in limp mode, if it doesn't go at all the ECU can not control the engine (for a variety of reasons) so will not start it up!

not going to be in London till the last half of august so if still stuck let me know! I can however email you the wiring diagrams for the fiesta RST.

 

Where abouts in Essex are you? I can maybe pop by and have a look if your local to me...

Matt

 

im sure theres a few subtle differences between fiesta rst and xr3i efi management looms. aside from the obvious i think theres maybe a connector where the pins need switching or one of the sensors is different. i dont know why but im sure ive seen something along them lines in relation to ofac/ofab compatibilty when searching info on going efi. youll get there hth

 

i did the exact same conversion, xr3i efi to ofac. i changed no pins on the ecu, all i wsa cut a wire on the edis moudle as i can remember, mine started first time. i take it you got the lolliepop ofac map sensor as well?

 

If i cant get my car going (and me and my mate know spanners, Power Engineering look after my Fiesta RS turbo the 2 times i couldnt get it to work, they also set it up on the RR for me, wouldnt go anywhere else, top service, top prices, top lads and i travel from Bristol each time!.

 

im in tilbury in essex would the cool if anyone would like to lend a hand on a sunday

i had a diagram from rs-bible it said thees a pin change if your using ofab but its jus plug and play for ofac

pump runs and stops as it should jus wont actualy fire

 

this is thre info i had

A list of parts required for Converting a S2 ERST to EFi, using the XR3i Loom method:
OFAC Fiesta turbo ECU. (OFAB can be used but takes a little bit more work, and will be discussed a bit later)
Ecu related MAP sensor. (OFAC ecu will need an OFAC MAP sensor)
Fiesta turbo engine, or mixture of adapter plates and a trigger for the CPS.
EFi inlet manifold, throttle body and charge carrier
ACT sensor, from the fiesta turbo
Throttle body to charge carrier pipe, still available from Ford at the moment!
EFi flywheel, Fiesta RS, XR2i, XR3i (EFi)
XR3i EFi whole loom
XR3i Throttle cable and pedal
EDIS Module and coil pack etc from XR3i (or Fiesta RS)

NOTE: All of the below assumes you have the XR3i loom fitted, along with all associated EFi items, such as coil pack, VSS (vehicle speed sensor) ect:
Fuel Tank/Pump & Supply
The standard S2 fuel tank and pump can be retained. If your using the XR3i loom, you will be able to just adjust the wiring at the rear accordingly. And connect the fuel lines in the engine bay, using suitable connectors for the supply, and return on the fuel rail.
Personally I used a new 1990' XR3i fuel tank and fuel lines. I took this opportunity to upgrade to an Escort Cosworth fuel pump, as it is a direct replacement with this tank. It also meant all the fuel lines at both ends marry up perfectly to the tank and the fuel filter and fuel lines.

 

The XR3i is fitted with the ECU '1AFA'. This ecu has all the correct pin locations for the ECU OFAC. With one exception, the AMAL valve. This can be added if you wish, but is generally left out. When using the OFAC ECU on the XR3i loom, you must change the ACT (air charge temperature) sensor located on the inlet runner, and the MAP (manifold absolute pressure) sensor, located on the blower box on in the engine bay. Pin 2 on the E-DIS unit is disconnected on the FRST loom. So cut this, and tape it back into the loom.

 

as far as i no i got what came on a large metal bracket on the fiesta? on the 3i its mounted on blower box?

 

right jus been on there havin a play swapped every back to as if it was xr3i and still didnt go some im thinking it could be the TPS as i dont think its a gen ford item as i swapped with with a member on here who was using mega squirt

 

I mean cps

 

dude i have loads of spares you can try for free, see if it helps.

 

your a legend mate sorry for late reply been doin up my house if the offer still stands I can pop down the weekend?