4AGE smallport > 4AGZE (smallport, MAP, etc.) wiring compatability.

[matt99]

Car - KE70

Motor / part in question - Engine loom.

Problem - I have currently got a smallport 4AGE in one of my KE70s and it has incredibly low compression (so low it wont run). Now I have been looking for a replacement smallport, however people want drug money for them these days. I have however found a smallport, MAP sensored GZE complete car quite cheap. Now I dont want to have to extend and modify ANOTHER loom, so basically my question is, can I use my current smallport loom on the GZE with the GZE computer? I know the CAS will be different, however apparently the wiring for the plugs correspond and its just a matter of swapping them, will I have any other issues?

Also, having a hard time finding a pinout diagram for a 4AGZE in a smallport map sensor model, if any one has a link, that would be appreciated so I can compare it to a regular smallport.

Thanks.

[Skylar]

All I can think of off the top of my head is:

ignitor has more wires going to it.
No supercharger relay or supercharger control functionality.

Both are banked injection. Both have knock sensor. Why do you say the CAS is different? I thought they were the same.

is it an ae92 or ae101 gze?

[matt99]

Damn, sounds like the ignitor might be my only downfall here. The super charger relay wouldn't be an issue as it would be used with a turbo instead.

I think the wiring for the CAS IS the same as the dizzy, I just thought they had a different plug maybe?

Motor is currently in a AE92, I can only assume it was originally a AE92 one.

[Skylar]

Huh, you're gonna turbo it? In that case, just leave the distributor and ignitor. Wait, turbo on stock ecu or a plug in adaptronic or something?

Re: CAS I thought they all had the same 4 pin rounded square plug.

Oh and I forgot last time but MAP sensor is different. 1 bar vs 2 bar. I don't know if the plug is the same.

I think they ran resistor packs too. The smallport loom probably doesn't have provision for this. Won't be hard to wire in.

[willa]

May have an ignitor of some sort in the shed ratt mussell, I'll let you know

[Hen may possibly be a nut]

1- Check whether ECU plugs are the same GE vs GZE
2- If so then you **should** be able to reuse your loom with some minor repinning and splicing

The dizzy pickups are the same across smallports (can't comment on plugs). But on a GZE you have a different ignitor and twincoils rather than a single coil and distributor. That will probably be your biggest conversion issue.

[matt99]

Thanks for your input guys. I think the GZE that I was considering has now been snapped up, although ill use this information incase another pops up.

In the mean time, back to looking for a regular smallport.