JZA70 wont start...problem is very very wierd

[MR 1JZ]

nothing wrong with the access ecu...I think heng just wanted it hahaha

check my post in the A70 technical thread...might as well keep it all in there as thats where most of the A70 techheads hang around

[De@No]

where is your brother mang?

I havnt seen him foruming in months

[MR 1JZ]

he been overseas on a world tour...back late nov

[Jt_70R]

Global punani sampling mission right? LoLz

[MR 1JZ]

something liek that

[Hengsta]

nothing wrong with the access ecu...I think heng just wanted it hahaha

Thats correct lol

[Jt_70R]

haha, ok i thought maybe MR1J was doing a dodgy one on me! (jks)

*edit*

[MR 1JZ]

dude dont insinuate stuff like that

you drove the car friday night and then all day saturday and didnt have one issue...

[Jt_70R]

hey im only joking, hence the LOL.

i love the car, this is just a minor hickup that ill get sorted no problemos.

[spiller]

whats up sluts, im right here. have been browsing this thread, just havent posted. im still alive!

[Hengsta]

^^ LOL someone came back alive.

[Jt_70R]

Update: The problem still exists, but continues to get more strange.

This afternoon i tried a working stock ECU that Matt sent up. It wouldnt start the car at all, not a hint of spark. No engine light when ign set to 'on' either.

Put back in existing ECU, started car up fine. No engine light etc. Took car for about a 10 min drive during which it was perfectly fine, didnt skip a beat until the light came flickering back on randomly again.
I can hear the fuel pump relay randomly clicking on and off now too. Sometimes just one click, other times its going nuts.

Im stumped as to why the stock ECU wouldnt even start the car. I would assume this means its not the ECU thats the issue, rather a sensor of som variety? What could cause all this wacky elec behaviour? Faulty knock sensors maybe?

[Hengsta]

Or maybe the CAS is stuffed again.

[Jt_70R]

If the CAS was stuffed why would one ECU work and the other not? This seems rather confusing.

Can I unplug the knock sensors to see if this does anything? I can see at least 2 hidden down under the intake mani, or is there a third somewhere?

[MR 1JZ]

I drove it to the workshop with the stuffed CAS...the blitz ecu can sort of override it somehow and run in limp mode