Ae92 fxgt won't start - help needed

[lunacy]

Hi guys
I apologise in advance for the long winded please help post, but am out of ideas with this.
I recently bought an 88 fxgt corolla with a bigport tvis 4age engine.
It had been overheated, with a suspected blown headgasket.
Could still turn crank over with socket on the pulley.
I replaced the rubbish radiator and re filled coolant...went to change spark plugs and noticed water in top of #2 and 3 pistons.
So head came off, gasket hadn't blown between 2 and 3 but head was bent.
Had it shaved flat, new bolts and head gasket - reassembled and tried it...cranks continuously but won fire. Since then I've tried and checked the following:
Cam and crank timing marks checked
New distributor rotor, cap, plugs, wires and ht lead plus a different distributor
Sparks on all 4 leads with spark plug out
Tested coil and ignitor all ok
Fuel pump runs when jumped at diagnostic and cor relay
Won't start with engine start in intake or individual cylinders
Eng main relay was missing when got it but replaced
Ecu board looks gd no leaking caps
TPS tested ok
Only thing I can find that may be odd is with the IGN on and while trying to start, all injector pins are showing 12v. Not sure what may cause this.
Also after cranking with new plugs in afterwards they don't appear to have had any combustion near them but not sure if this is lack of spark in the cylinder or lack of fuel due to an injector issue
Could something with tvis be a problem?

Any other checks I could make or any ideas why she won't catch please let me know...it's doing my head in now!
Cheers
Bryce

[Xauterus]

Sounds like you have an ignition issue if you are not getting anything by adding fuel past throttle.

[jondee86]

Won't start with engine start in intake or individual cylinders

Does it cough, fart or sneeze when you try it with engine start ? Any sign of life inside at all ?

Only thing I can find that may be odd is with the IGN on and while trying to start, all injector pins are showing 12v. Not sure what may cause this.

All four injectors are wired in parallel on the supply side, and I'm pretty sure that while they appear to be wired in pairs on the ECU side, they all get connected together inside the ECU. This means that as long as there is one clip still connected to an injector, you will have 12V on both pins. Try taking all four clips off and then test both pins. Now you should have 12V to ground on one pin and nothing on the other.

After you have been cranking on it for a while, are the plugs wet with gas ?

Cheers... jondee86