VP Fuel Economy and Temperature gauge :(

[no idea]

My 1993 VP executive V6 gets 16.4L per 100km at best, it idles a bit rough and the temperature gauge is always saying its cool.

Anyone reckon these problems are all linked?

wheels are aligned and balanced

also most people think i should replace the O2 sensor but i dont wanna replace it if its not gonna do anything

any ideas?

[TVR-190]

its a VP what you expect, ive owned 2, thats about what you get. i get 16.7 in my calais

[no idea]

its a VP what you expect, ive owned 2, thats about what you get. i get 16.7 in my calais

i was expecting to get closer to the factory figures (12.5L) instead of figures similar to that of a hummer

[TVR-190]

haha factory figures, ur kidding urself, theres already a heap of threads about this, do a search and find what others got

[excalibur]

i was expecting to get closer to the factory figures (12.5L) instead of figures similar to that of a hummer

dont forget your car is also 15 years old

[88GreenVN]

I put a post on this thread in the VR section for you

http://forums.justcommodores.com.au/...ure-gauge.html

[90holden]

I had this same problem with poor fuel economy and a temp gauge that was barely reading anything. I changed my thermostat and now I can get 10lt per 100km doing 120km per hour on the open highway....before I was using 11-12lt per 100km doing 110kmh....I have a V6 VN ute with no modifications

[LightningVP]

I get roughly 12.5lt/100km doing normal street driving (not freeway)

[One Bored Pickle]

Hmmm.
Thats a tough one.
Maybe you should hug Lozum?
That solves everything

Just another helpful tip from yours truly [:

XoXoXoX

[savage1987]

I had this same problem with poor fuel economy and a temp gauge that was barely reading anything. I changed my thermostat and now I can get 10lt per 100km doing 120km per hour on the open highway....before I was using 11-12lt per 100km doing 110kmh....I have a V6 VN ute with no modifications

x2

Thermostat is stuck open. Put a properly working one in and your car will actually make it off the cold map.

My VN V6 s1 auto makes a flat 10L/100km, hills driving. I still think it can do better. Ask greenfoam how much I complain about my fuel economy My fuel breather hoses are completely rooted (chunks missing) so I'm losing fuel that way, the motor has 500,000km on it and it's 17 yrs old now. Still does 10L/100km, every tank, without fail.

Here's what I'd say.. one by one, start at the top and keep going until your problem's fixed:

thermostat
plugs
leads
coil packs


Actually that should do it.

Sam


ps haha 90Holden, me and a mate were crossing Australia a couple of years back (Canberra to Perth) and we ran 3 or 4 whole tanks at 140-150kph, sat on a flat 10L/100km that was before I had it tuned as well.

[xtreme_sony]

its crazy to hear people are getting the litres/100km that they say, im gettin bout 7.7-8.5l/100km doin 110km/h and average about 12-13.5l/100km around town, car has just gone the 230,000km mark, stock engine besides redback extractors, 2.5" high flow cat, 2.5" lukey cat back, its also an auto.

[greenfoam]

Well they should be well under 10L/100 (when new) on the highway but not many are still in that kind of form

[Pub247]

the beige did good last week got 600ks out of a tank of mainly hghway driving average around town is 350ks lot of short trips and cold starts though

[savage1987]

Mine should be back down nicely with a diff that isn't seized... (ref: Huge power drain - spool) and a freshly built VR V6

[jakewaze]

i get about 420ks out of a tank mainly around town, its S1 VN Auto

[ve safari]

Just replaced the oxygen sensor in my stock 180K VP. Went from 15l/100km down to 11.5l/100km the very next tank, no changes to anything else or how I drive.

[savage1987]

Mine should be back down nicely with a diff that isn't seized... (ref: Huge power drain - spool) and a freshly built VR V6

WIN!! back down to cruising at just under 7L/100km @ 110kph; around 5L/100km @ 50-60kph

And that's without your update installed yet greenfoam, and the TCC not working at all

[rob drag racer]

Mine should be back down nicely with a diff that isn't seized... (ref: Huge power drain - spool) and a freshly built VR V6

hahaha good call