Stage 3 mods

I dont have any photos for this one but there are a few things to bear in mind when embarking on this job. All the other things I have done to this point have been reversible to sort them out but this job requires fitting a new ECU chip, Injectors and Air Flow Meter. Fine if it goes ok but if I cock it up then I am in trouble.

 

Firstly I fitted the chip, as I already had the chip holder soldered into place it was just a case of removing the old chip and refiting the new one in it’s place.

Next came the AFM old one removed instantly a problem presented itself. AFM will not bolt onto the Apexi fitting for the air filter. solution was to remove the pipe part of the apexi kit and just fit 2 screws into the filter. I then soldered the wires onto the AFM socket according to the instructions on the SXOC site and documentation available from Horsham developments.

Still no way to test the job though, wrong injectors are fitted, so get on with it.

To change the injectors over you need to first release fuel pressure, start the car and remove the fuel pump fuse. then crank it for about half a minute to remove all fuel.

then get a copy of the manual and look at the page related to this job. You basically have to remove all of the bolts that are in the way also I have to remove the valve on the side of the plenum.

there is a small bolt hidden under the fuel pressure regulator which is a right biatch to get to so make sure you get that one undone.

Once the fuel rail is removed you then need to pull the injectors out and carefully swap them, avoid contact with the tips as they are extremely sensitive and contact and ruin them.

Then reassemble the fuel rail and connect back up your fuel pipes.

reconnect the fuse and fire her up.

 

TIP: if you leave the car for any length of time then you must release the pressure in the fuel tank if the weather is hot, I left mine all day while I was waiting for a part and when I got in from work fuel was bubbling up the pipe and spitting all over the road, after 6 hours there was quite a lot of it !! This was done in November so it wasn’t that warm but the sun was out.

 

good luck.