Dead VG Ute

[Pete O]

Black thing is map sensor..has vacuum hose & 3 wire plug & probably go into limp mode if disconnected,run rough.

Green wire looks like air compressor wire

Ecu earths are in wiring harness to block.

Have you checked for fault codes?

I’d worked out the green wire was probably aircon wire by it’s proximity to the aircon mount. I’ll have to suss out the earths to the block & no I don’t have anything to check codes with. I was sitting in the cab today when it was idling high then low then almost stopping before picking up again & the engine light was coming on & going off. I’m starting to suspect the MAP so I ordered a new one today, along with an oxygen sensor & air temp sensor. I’ll get the right one eventually....

 

[gtrboyy]

Should always check codes first...saves heaps of time & arsing around.

 

[Pete O]

That's the MAP sensor, 3 wires the light green one, a blue one and a green & yellow one.The engine harness should be earthed to an earth on the module mounting stud. If you can find it in a photo Holden call it "location E". If the ECM's not earthed that may be your problem, but I'm not a V6 expert.

I’ll check that earth next week when I’m home again, gotta hit the road for work in the morning.

 

[Pete O]

Should always check codes first...saves heaps of time & arsing around.

If only I had something to check them with....

 

[Pete O]

What sort of code reader would I need for a VG ute?

 

[gtrboyy]

Small split pin or stripped wire.

Cheaper than buying parts not needed................................

 

[Pete O]

Small split pin or stripped wire.

Cheaper than buying parts not needed................................

Ok just did a search & found how to do it, Will suss it out when I’m home next. Thanks....

 

[MikeC]

Sorry, I assumed that you'd done these ALDL tests. The tests using the old diagnostic connection next to the glove box are a good place to start but no where as comprehensive as a modern OBD2 code reader will achieve on later cars. I hope they pinpoint your problem or at least narrow down where you should be looking.

I carry a paperclip in the glove box & a printout of what the flash codes mean for doing any analysis on the road if needed.

 

[gtrboyy]

For vn/p easier to rig up a permanent earth switch in glove box to (diagnostics) white/black trace wire...flick switch codes come up.

Vr/s split pin,old speaker wire or anything that will bridge pins 5 & 6....then teach owner how to check fault codes themselves.

 

[Pete O]

Sorry, I assumed that you'd done these ALDL tests. The tests using the old diagnostic connection next to the glove box are a good place to start but no where as comprehensive as a modern OBD2 code reader will achieve on later cars. I hope they pinpoint your problem or at least narrow down where you should be looking.

I carry a paperclip in the glove box & a printout of what the flash codes mean for doing any analysis on the road if needed.

Thanks, I have a copy of the codes now & will do the checks when I get back home. Thanks for the help with it.