Hey I got this issue with my 90 TII RHD. Bought car and put it all back together. Was torn apart. Everything in engine bay stripped out. I finally get it all put back together and got it cranking fine. But won't fire. Car previously had a mega squirt in it. I have no idiot lights in the centre cluster. None at all. I'm really hoping that this is the reason it's not starting.... Any ideas. Good spark and fuel pressure. Injectors don't seem to be firing. ECU is brand new...

 

The ECU should have 4 Light Green wires clustered together which trigger the injectors. W/key to on they should all have 12 volts. W/key to start two of these wires (primary injectors) should have voltage in the 6 to 8 volt region (indicates the ECU is trying to fire these injectors). At each injector the Black/Yellow wires should also have 12 volts w/key to on.

 

Ok. I'll check those. Furthermore which wire is power in for ECU? Want to check and make sure power is coming into the ECU itself.

 

With ignition on, spin the CAS. Do you hear clicking?

You're back to a stock ECU?

Replaced harness? (I take it the one with the megasquirt was hacked up)

Some wiring is different between JDM and US spec., including harness wires/colors/function IIRC. There are a couple guys that can help more than I for that.

 

Pin 1B (B/W wire) has power w/key to on.

 

Car is RHD n I put a used RHD harness in car. I got a stock 374 ECU that i sent out to rtek and had chipped for 4 720s. Injectors are brand new 720s