VS V6 Not Starting

[DRAGON7]

I can't start the engine.
I've had guys check everything, and replace everything like sensors, fuel rail & Injectors, Fuel Pump, ECU.
It's getting Fuel and Spark, but the Injectors aren't working.
Auto Elec said he's never seen this before.

Any help would be awesome.

I have done the same Do I Have to Worry About Timing When Replacing VS Heads???

[nathanVY]

Sounds like the immobiliser, how old is your key? If your key is old it may not be contacting it properly...

Not sure about all VS's but with mine, once you unlock it with the car, the interior light stays on for a set time then switches off. During that time you can start the car with ONLY a key (not keyhead etc), so if your key is playing up try starting it that way.

[PRAVX II S]

The ECU sends a earth signals to the injectors. Could be the actual ECU or the factory immobilizer.
Also the injectors should have constant power on one wire when the IGN is on this power is supplied by the EFI relay.
So check the EFI relay and fuse.
Also check for codes bridge pins 5&6.

[nathanVY]

Here ya go.
Checking error codes VR/VS (Revised)

[RX25SE]

Does the security LED go out when the ignition is turned on?

Does the auto elec have a scan tool?

[DRAGON7]

I'm pretty sure they have tried everything, but I'll ask.
They've said it's not the key head, tried reprogramming the BCM
It's a secondhand auto box, and reco heads

[DRAGON7]

Not sure about LED, but it has been scanned

[monkeys437]

I'm pretty sure they have tried everything, but I'll ask.
They've said it's not the key head, tried reprogramming the BCM
It's a secondhand auto box, and reco heads

Just a random though, did the problem start when secondhand box went in?

[DRAGON7]

No it ran and drove around the workshop for a while i.e moving it for space for other cars

[PRAVX II S]

Well if there is no injector trigger and everything else checks out i would be incline to go with the ECU as i mentioned above.
Has the Ecu got wet anytime did someone spill a drink or has any sort of moisture been exposed to the Ecu?

[DRAGON7]

The ECU has been checked

[PRAVX II S]

The ECU has been checked

May i ask how did the ECU get checked.
If the ECU is ok And you are not getting injector trigger maybe there is a open circuit between the injectors and the ecu wiring.
You need to check continuty from ecu to injector wire with a multimeter.Are all the injectors not triggering?

[DRAGON7]

Not sure, I'll check with them

[DRAGON7]

I'm thinking wiring harness, anyone got a cheap one lol

[nathanVY]

I'm thinking wiring harness, anyone got a cheap one lol

Yeah i've got a complete and uncut VS berlina/calais/stato main body loom.. PM me

[DRAGON7]

I read this somewhere

MODEL:COMMODORE
SERIES:VR/VS
PROBLEM:NO INJECTOR PULSE/SPARK AND FUEL OK
POSSIBLE CAUSE:EFI EARTH CAN WORK ITS WAY LOOSE BEHIND THE DRIVERS KICK PANEL

I'll have to check

[DRAGON7]

All fixed
Throttle Posititon Sensor - It was reading full throttle at start up, but no code error

[DAKSTER]

I refuse to believe any quality auto electrician couldnt work out why your car wouldnt start. Get your money back from the first one, and next time go to one who knows what he is doing.