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VL Commodore

fuel economy

Started by stck3L · 23 June 2004 · 145 replies

Preserved from CalaisTurbo (partial recovery). Original authors and dates are shown; archived members are not current Holdcom accounts.

chrizArchived member
does the afm thing work on n/a's? i also want to change my fuel filter... i know people have mentioned a book that tells you how to do all these type of easy maintenance things, anyone know what it's called and where to get it? thanks. i get about 350-380 in my n/a :P
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stck3LArchived member
Quote: Originally Posted by Lazza78 yeah that was the vl, and i still dont know how he survived, hit the gutter on the other side of the round a bout and straight into a tree, the vl was a mess, lucky there was no passengers with him i'm pretty sure there was a passenger coz he ended up in tim's lap.. scary **** though i've seen pics of the car.. shattered 3 mags
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stck3LArchived member
Quote: Originally Posted by JuZi i guess the afm thread was deleted then, here's what you do: - unplug ur afm - test the resistance @200ohm (i think, it might be 2000 though so just see what kinda nubers come up) between the 1st and last pin on the afm - the stock resistance should be 382 - if its not that poke that thing sticking out with a screwdriver and turn the screw in there till you get the right reading - although 382 is the right reading i found that my car run much better at 320 without losing any fuel economy at all were is the Afm... is it easy to get at??
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Lazza78Archived member
AFM is bolted to the top of ur air box, very easy to get at
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vlt-dreamerArchived member
Heres A Pic Of The Afm
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AtticusArchived member
What do you check it with? Where can you buy the thing to check it with from?
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TREVAArchived member
you can pick one up from **** Smith, or any places like that, im gonna give it a go aswell cuz im only getting 400km to a tank if im LUCKY.
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Holden_ManArchived member
I have a VL Wagon 3ltr and get about 380km's per a tank, thats driving pretty crusie as well. What about the fuel mixture? Do you have to check that too if you change the airflow setting?
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MattisArchived member
i just replaced my AFM...already seen a massive improvement in petrol..looking at getting atleast 500..with the old one in i was lucky to get 300.. next i need to clean me injecters..
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lebroconArchived member
Quote: Originally Posted by JuZi i make around 600-650 per tank (63 litres) no matter how hard/gently i drive it, and it was 550-600 wen i got it, btw this is running ULP, if i ran pulp it would do better i changed: -ignition leads -spark plugs -hi-flow panel (old one woz paper) -put in cai and took out+blocked up stock snorkel all of the above should slightly help your fuel efficiency just incase you are wonder a stock vl fuel tank is 63 litres, the wagons came with a 68 litre tank stock. lol where you getting 63 litres a tank, my tank is 50 litres i think yours should be too
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its.not.aliArchived member
whats teh easiest way to find out if ur AFm is dead or not??
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NZ_BT1Archived member
mine holds 61 litres from dead empty as in run out of fuel lol the fuel gaudge broke a while back but its fixed now.
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Holden_ManArchived member
I adjusted my AFM today. It was reading 398, so i'v changed it to 382. Hopefully it makes a difference.
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CalaisRidaArchived member
Quote: Originally Posted by lebrocon lol where you getting 63 litres a tank, my tank is 50 litres i think yours should be too I think he's right. VL fuels tanks are 63 litres (aprox). I've had 3 VLs, and i've never come accross a 50 litre tank...?
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notorious_vlArchived member
my first calais had a 50 litre tank, but my others had 63.
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Ice009Archived member
hey guys, i'm wondering if i should try all this stuff as i'm only getting about 350km's a tank using PULP. The reason i ask is my n/a VL has a been fitted with a Chiptorque HP3 chip and cam package. would that be affecting the fuel economy much? should i just go ahead and do all the stuff 'vldude'03' listed? anyone know anything about these Chiptorque chip and cam packages relating to fuel economy?
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poida24Archived member
lol standard fuel tanks from vb to vs are all the same 63L
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gmhvl6Archived member
I am usually lucky to get 300km. The funny thing is, to test my economy I filled up my tank and drove it like a granny, not going over 3000rpm, and I still only get about 300km WTF!!! This is 50/50 higway and city driving. The car has been serviced - new spark plugs, leads, dizzy cap, rotor etc. I have noticed when I flat stick it I can see the fuel gauge moving down, then when I ease off it goes back up. If I was to keep the car I would want to get to the cause of the excessive fuel comsumption, but as I am getting rid of it soon, I can't be bothered wasting my time.
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TREVAArchived member
i will be trying the afm adjustment tomorrow, just wondering what fuel do people use that get around 600km per tank, premium or reg unleaded?
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SmokeyDArchived member
whats the easiest way to find out if ur AFM is dead or not?? and how can you adjust it urself ?
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