Programmable Ignition Only Computers ?

[discopotato03]

Hi all , I know Haltech used to market IG4 and IG5 ignition only computers but its seems they don't do so now because the Motorola processor was no longer available . Is anyone else selling anything like them ?

Cheers A .

[Guilt-Toy]

couldnt you get a normal computer that does both but only wire the ignition in ?

[r32sky_line]

Probaly better off getting a computer that does fuel and ignition, you'll need to alter your fuel sooner or later.

[discopotato03]

Its not aimed at a Nissan , my R33 has a Power FC in it . I want it for a Subie EA82T engine that uses a mechanical type dizzy with vac/pressure can sensing . It has a trap door type AFM/EFI and I can bend its signal with a Jaycar interceptor to set AFR . Later versions used hotwire AFM's and a locked optical CAS/dizzy like an FJ20 has . It would be very simple to use an ignition computer with the optical dizzy and possibly a couple of double ended coils EJ20 style .

I hate MAP based aftermarket management and until they can load sense off a Hotwire AFM they can throw them all off the gap . I can live with MAP corrections for ignition control but not fueling .

A second hand Haltech IG5 may be the go , cheers A .