i have got pics of pink hearts and blue diamonds on my ecu, can anyone shed some light on this, also i found what looks like a fuel regulator below the fuel metering unit that has a bit for a vacuum pipe but theres no pipe,!!!!!! is there supposed to be a vacuum pipe on this if so where does it go to

 

U say your ecu has coloured hearts/diamonds on it??

pre 90 spec ECU's have coloured sqaures, 90 spec have heart, diamond, hash symbols printed black on the front.

Your fuel pressure regulator, a standard car doesnt have one, its sprung loaded inside to give a preset pressure, i believe tuning companies however do run a pipe to this to increase fuel pressure at high boost.

I'd speak to a tuner before you try it however (if you are going to)

 

the ecu you have has a knock sensor built in which retards the timing,seeming as most cvh engines tap etc youd be better off getting an early type ecu as it could reduce your power.

 

Or just disconnect the knock sensor

 

on the s2 most of the ecu's with the coloured squares on have a knock sensor!!
a series 1 does not have a knock sensor

 

This man speaks the truth

 

Early s2's didn't have em either m8.

 

That would make sense ive seen a Series 2 manifold that doesnt have the hole tapped for the knock sensor.

 

Mine didn't have the sensor but the green plug was on my loom.

 

thats why i said most

 

I know i never said u didnt I said you speak the truth

 

safechav i know mate it was ksa-cossie that said it