1uz starts and dies :/

[Zuffen]

The ECU tells the injectors to fire by earthing the circuit from the injectors.

This means all the injectors need 12 volts at all times the engine is running regardless of which injector is firing.

Double check you have 12volts at the injectors with the ignition turned on.

 

[DirtyOldMan]

excuse my newbness but how do you get 12v to each injector?
is there one 12v wire you have to splice into 8? one injecotr box that control power to all? etc. i havent looked at my 1uz in awhile but thinking i might run into this problem also.

 

[George_R]

you have 1 wire, it's spliced into 8 in the loom

 

[jkb_and]

This car ruined my nerves so I gave it up for few months.
Error code for throttle position. I replaced it (used one from supra) but no effect.
I can tell for a try I used ECU with immo and the engine did not start even for 1s. So you`re right immobiliser is not the reason.
Now I asked electician to check every single wire and sensor. I should know the result in 1 or 2 weeks.
Alternatively I am thinking about running it on stand alone computer. What is your opinnion?

 

[jkb_and]

Thank y`all for your help! The engine is runnig good finally. The problem was immobiliser. UK cars manufactured post 1993 have it! The moron who took the engine out of my Lexus cut it off. Take care and may the force be with you!

 

[Lillebror]

Thank y`all for your help! The engine is runnig good finally. The problem was immobiliser. UK cars manufactured post 1993 have it! The moron who took the engine out of my Lexus cut it off. Take care and may the force be with you!

i have the same problem how did they do to fix it? please send me a email: [email protected]

 

[Jacogrlng]

Goodday gents i have the same problem my injectors only pulse once its not the ecu as i have put it into my other vehicle and it starts up first time round.

 

[blackdemon_tt]

Maybe start a new post? explaining a bit more. what car is it? is your car swapped? or is it non swapped. Would make it easier to help you.

 

[Oskido]

Hi I`ve got problem with my 1uz-fe after swap.
I put it into nissan 200sx. Now for some reason after start id dies.
Troublecode says : airflowmeter, air temperature, throtle position sensor.
I replayced them and code says the same. I have no idea why.
the engine stops by itself after 2sec 15 or half a minute - no rule can be made.
Can anybody help me out?

Hi, I'm no specialist but had a similar problem.

Take your ECU unit out and plug into another 1uz-fe motor and see if you have the same problem.

If so it's problem the immobilizer that needs rewiring/redone.

My Immobilizer failed (replaced) and PC board rewired and walla - problem solved.

Good luck!