Originally Posted by safechav
Are you sure about that wiring, the Ford diagram suggets different...
His ECU is a Heart Diamand Hash, so your saying with the knock sensor plugged in the power would raise even more?
Thats a good point on the ECU, thats why i dont remember seeing anything about it
At least someone is on the ball
I am 100% sure I am correct.
Not only do I have the Ford wiring diagram for the Series 1, I have 3 of them and also wiring diagrams for the S2 86-88 spec and 90 spec wiring diagrams. The S1 diagram confirms that my experience with my own car and MJC's car off here and the RSOC is 100% correct.
Unless his ECU has been modified to exclude knock control, he may well increase his power just by removing it from his manifold and plugging it in, then having it set back up again. It may have been possible that static ignition timing may over come the retard in the ECU by having it run excessively advanced at idle..