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Dochka

Toyota 2JZ-VVTi Running on 2 Cylinders :(

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Hi,

Today I've got a car powered by a Toyota 2JZ-VVTi engine managed by a Link Storm Blue G4+ 1 Plug ecu ;

Engine was running normal before we shut it down, I Reset the ecu to factory settings and upgraded the firmware to the latest;

Set up all the Inputs/Outputs,StartUp.pclr

Engine is wired Semi-Sequentially, Inj-Coil 1 run Cyl 1&6, 2 Runs 2&5 & 3 runs 3&4

Started the engine, but 4 cylinders are dead... Turns out Injectors number 2, 4,5 & 6 are not pulsating

Checked wiring continuity and no issues there, but when I test Injectors individually, only 1 & 3 Pulsate...

Coils work fine

What could be the issue ? This is driving me nuts, tried running the engine 36-2 mode on Trigger 1 only but same issue..

Elios_X Trigger Scope Log 2020-02-24 8;42;59 pm.llg Elios X.llg

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If you are running the injection test function and only get 1 pair operating then check the power supply to the 2 pairs that are not working and check the continuity back to the ECU. 

Are the injectors off all the time or stuck on? If they are stuck on then likely a damaged injector drive

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Hang on, you said injectors are paired 1&6 etc, but then you say injector 1 is working but injector 6 isnt?   If injector 1 is firing then that proves the inj drive is ok, if they are both wired to the same drive then they should both be working - it could only be a wiring issue or seized injector or similar?  Can you confirm if that is what you are trying to say?

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7 hours ago, Adamw said:

Hang on, you said injectors are paired 1&6 etc, but then you say injector 1 is working but injector 6 isnt?   If injector 1 is firing then that proves the inj drive is ok, if they are both wired to the same drive then they should both be working - it could only be a wiring issue or seized injector or similar?  Can you confirm if that is what you are trying to say?

Yeah,

I first thought so,

But I got shocked when I tested the Voltage on Injector 1 and 6 Plugs while testing them and found out that Inj 1 Output Voltage is 0.60V and returns to 0.20V when I stop testing and that Voltage on Injector plug 6 is at 0.20V all the time even if i test it...

Injector 3 plugs is the only other one that works (0.20V to 0.60V) , while all the others left don't work...

Checked the connector, wiring... 

Strange thing is that engine was running normal before I updated the firmware...

Tried restoring the old firmware, and the same issue persists...

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16 hours ago, Adamw said:

Hang on, you said injectors are paired 1&6 etc, but then you say injector 1 is working but injector 6 isnt?   If injector 1 is firing then that proves the inj drive is ok, if they are both wired to the same drive then they should both be working - it could only be a wiring issue or seized injector or similar?  Can you confirm if that is what you are trying to say?

Tested the output directly from the ecu plug

All of the injector outputs are working

Did some detective work on the wiring loom and found out the problem...

Thanks

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