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ofab to ofac

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Old 29-01-2008, 08:32 PM
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cossiedave
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Default ofab to ofac

anyone know what wires to change over on the ecu plug to run a ofac ecu on a ofab loom on frst any help would be great
Old 29-01-2008, 09:13 PM
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©hatter Box
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why would you want to do that ? ofab is the better one of the two
Old 29-01-2008, 09:19 PM
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Cowboi
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has this on my computer from when i done the opposite a few years back.

might be of some use to ya


Dunno if this is any use to ya. Me bro made this up when we converted Faye's (Alex's mrs) to a Fiesta Turbo engine using a MK4 Escort XR3i wiring loom...

XR3i EFI to FRST (OFAB)

ECU pin changes

Pin27 (brown) to pin8 (co adj)

Pin45 (brown/yellow trace) to pin27 (map sensor)

Pin33 new wire to amal valve

Pin28 (blue/yellow trace) cut back feed from EDIS, which is pin2

Map Sensor plug changes

At map sensor multi plug

Plug may need changing for cossie map sensor
Numbers marked on multi plug

Pin1 (brown/yellow trace) feeds back to ECU on pin27

Pin2 (brown) Ground

Pin3 (brown/black or green trace) feeds back to ECU on pin26
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