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Vt V6 3.8L trying to stall

Regularmaintinence

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Vt commodore V6 3.8l base model
Fuel trims run fluctuation between 2-4% equally both banks
data shows well maintained never thrashed , good for mileage But obviously not a new engine.
no difference in banks or individual cylinder.

service every 6 months or 10,000kms
main service
oil, oil filter, air filter, fuel filter, sparks
AND one main thing for mileage (maybe brake fluid flush, maybe coolant flush, maybe trans service maybe diff fluid depending on workshop manual recommendation for mileage)
ignition leads with heat shields etc…

mid year service
oil, oil filter, air filter.

last 5 years repairs.
starter
altinator
power steering pump
key fob keyless entry.
radiator and all hoses
full underbonnet air conditioning replaced compressor, condenser and all hosing.
bushes front back
rear brake rotors.
intake manifold hose
all 3 coils
oil pressure switch
 

Lex

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VT Executive S1 V6 6 speed Auto Wagon
replaced ALL coils 3 years ago. One was bad replaced all 3 to be sure.
When l was having problems with dfi or coils, l discovered that a bad coil would take out a good dfi or a bad coil would take out the dfi.

For above reason when getting a bad coil or dfi, l would change both with one from the wreckers.

I had bought a few delphi dfi & coil packs new. I never had any luck with them. That's the reason for getting them from the wreckers.

Also check the dfi plug, whats the pins look like?

Then there is the dfi wiring?
 

Regularmaintinence

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Vt commodore V6 3.8l base model
Yeah, thanks ill check DFI module not changed but worth a look, wiring is clean, and in google condition,
I regularly use DEOXIT and then LITHIUM grease on electrical connections under the hood.
and the engine relay.
just trying to keep the “parts cannon” to a minimum.
so getting a list of the most likely culprits.

I’ll remove the things and DEOXIT and LITHIUM grease the insides see if that makes a difference , hopefully it does, and they just need maintenance and not replacing (just yet)

thanks
 
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