Ems 8860 wiring diagram
IMO, the main problem AEM have had with their EMS is that anybody can buy one and install it, and has full, unrestricted access to all the maps and settings. It sure wouldn't be on my short list of ignition boxes to consider.Ĭoncerning the AEM EMS, I've had mine installed since 2004 and have had no issues with the quality of construction, etc.
Remains to be seen whether the next revision will cure its ills or not. The AEM CDi ignition has had serious QA/QC problems, both in its initial form and 2nd revision. These aren't the only considerations, however an ECU with these capabilities should have the other requisite I/O. Personally, I would choose an ECU that has full sequential (8) injection outputs, and at minimum (4) ignition outputs so you can get rid of the 1UZ's distributors and do a crank triggered, waste spark ignition. So nearly any ECU which can accommodate variable reluctor (VR) type pickups should work. There are also single tooth cam trigger wheels which also use reluctors. The UZ has the firing order of a Chevy, and uses a 12 tooth crank trigger wheel with a reluctor pickup. Obviously, if there are no AEM's in SA, it probably wouldn't be a good choice for you, regardless of how popular it is elsewhere. I think the more important decision to make is to find a tuner that you can have complete confidence in, and who will be there when you need him, then go with the ECU that he knows and recommends.
One of our members here is a former factory engineer for AEM and is developing a PnP application for the SC400. Can't comment on any of the ECU's you mentioned, however several of us here are using the AEM, as well as the Link G3 Plus.