Had a further look into this yesterday started the car warmed it up found cylinder 4 wasn't doing a large amount of work i unplugged the ht lead going to cylinedr 4 and it makes a very slught difference to the idle, i swapped the injector for another one i have and find the same problem i also changed the plugs to eliminat this, then i switched it back to 1afa ecu and cylinedr 4 sems to wrk properly....? is this down to my act sensor being n/a...also i have a ofac map sensor matched to the ofac ecu, my co pot doesnt respond to any adjusments aswell......how much control does the act have over ignition timing and fuel mixture?

OFAC 1, Red -- +ve
3, Brown/Yellow – octane / idle adjust
4, Brown/White – speed sensor
7, Brown/Green – engine temperature sender
16, Brown – current return & 40
17, Brown/Green – diagnostics connector
20, Brown – current return
21, Brown/Yellow – idle speed valve
22, Brown – fuel pump relay
23, Brown/Red – octane / idle adjust
24, Brown/Blue – octane / idle adjust
25, Brown/Yellow – air temp sensor
26, Brown/Black – throttle sensor & co adjust pot & map sensor
27, Brown – CO adjust potentiometer
28, Blue/Yellow – Pin 2 on edis (disconnected)
33, Brown/Green – Boost control valve
36, Blue/Red – Pin 3 on edis
37, Black – idle speed valve & injectors & Speed sensor & Boost control (tbc) & 57
40, Brown – current return & 16
45, Brown/Yellow – map sensor
46, Brown – map sensor & engine temp & air temp & throttle & CO adjust
47, Brown/Green – throttle sensor
48, Blue/Green – diagnostic connector
56, Blue/Yellow – Pin 1 on edis
57, Black – idle speed valve & injectors & Speed sensor & Boost control (tbc) & 37
58, Brown – Injectors
59, Brown – Injectors
60, Brown – current return


This is the guide i followed for the wires i found mine are exactly the same this is off rsbible someone mentioned changing pin 27 to 45 and pin 8 to pin 27 when i did this the car wont hold revs-(im doing this becasue i converted my xr2i into a rs turbo using the original loom..