Help with identifying a ecu and finding a diagram or at least the pinouts.

[splatacat]

Hi there Guys

Im looking to identify which 1uzfe ecu i got, and trying to find a wiring diagram for it. It runs a 4.0L v8, It from a Crown, not sure of the year.

I have now looked all over the internet and can't seem to find out anywhere. the diagrams on lextreme.com do not match.

This ecu has 4 plugs, 34p 22p 16p 28p
We are battling with wiring the transmission and overdrive, also the fuel pump and relay. Only then can we hook it up to a computer and tune it as its also overfueling heavely when warm.
Here is a pic of the ecu sticker if it will help



Any help finding diagrams would be appreciated

Thanks
Chris

 

[Tonyd]

Hi,

That pin/plug configueration is used on a 1996 4 litre Lexus LS400.

The wiring diagrams and pin outs for this ecu are within the technical information / engine specs tutorials parts of this site. Click on the link at the bottom of the page en titled "Engine specs and diagrams" and the four pages of wiring diagrams are listed under the 1996 LS400 ECU Diagram heading.

Cheers,

Tony

 

[sideshow]

over drive changes from on year to another

early 1uzs had neg trigger over dirve
later ones went to pos trigger over drive
another thing is the fuel pump might run a fuel pump ecu
this means the fuel pump ecu has funny signals from the engine ecu
i just fit a tacho relay if i get these ecus in for wiring