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2001 vu v6 problem

G.nuts

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can anyone help..
2001 vu v6 auto
when cold is ok
As it worms up has a miss and bad under load in gear. In park it will revs out just fine.
just coasting is ok but i put my foot down its bad..
I have done
fuel pump
Fuel filter
Leads
Plugs
Coils
Coolent temperature sender
CAS
fuel pressure regulator today with no difference...
Injectors
I have had a code reader on it but no codes come up..
What to do next.
Please help me
 
Last edited:

Immortality

Can't live without smoky bacon!
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Only one thread required!

Have you tried cleaning the MAF?
Checked fuel pressure? It could be a problem with the fuel pressure regulator.

May also be an O2 sensor problem.
 

G.nuts

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Only one thread required!

Have you tried cleaning the MAF?
Checked fuel pressure? It could be a problem with the fuel pressure regulator.

May also be an O2 sensor problem.
Havent done o2 yet but everything else looks good and is new
I have orded a new CAS from super cheap and might do o2 when waiting for that.
 

G.nuts

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Have swaped o2's from my vy had no difference. It starts up good but as it worms up its missing bad...
Just wait for the CAS i guess
 

G.nuts

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Did you happen to take any notice of the dfi plug? Any carbon or crap on the pins?
What is the condition of the wiring like?
Wiring looks good , pins where bit like Dusty
 

G.nuts

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Did you clean them?
When refitting, where they a good tight fit? (dfi plug).
Yes cleaned with contact cleaner and was a tight fit .
I have started taking of the harmonic balancer off today so just gotta wait for the CAS now
I will report back when that is done ;)
 
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