VN L3 Calibration - How To!

[88GreenVN]

This is a scan from the good old Holden hand book.

So people driving a VN with the L3 dash this is what you use to get the trip computer spot on.

Good luck its worth the effort.

[TVR-161]

On this topic does anybody know how to reset the total fuel used and trip time. I can only manage to reset the trip distance

[88GreenVN]

Originally Posted by TroyRulz007

On this topic does anybody know how to reset the total fuel used and trip time. I can only manage to reset the trip distance

To reset computer:

Hold down the Reset button and press the Mode button.

Also DTE is calculated every 2 minutes.

[88GreenVN]

Here is the test mode to show fuel flow rate per hour. Should be between 1 - 5 Lts/Hr.

[TVR-161]

I had the book for my lexcen, whic included all this stuff, but i left in the lexcen when i sold it. should have made a copy....

[88GreenVN]

The second scan if from one of the proper Holden service manuals.

I want to know if the flow rate is at 5 instead of 1 or 2 does this mean the car is going to use lots more fuel or not.

On looking at it if the cars hourly flow rat is 5 litres instead of say 2 - it's gunna use lots more fuel.

Now does the hourly flow rate at idle say how the regulator is operating - like if it's 1 regulator is good - and 5 = buggered regulator?

[NickVR]

Well to give you an idea, a VE Berlina has a rate of about 2.3ltrs/hour on first start up. After it's warmed up it sits around 1.1-1.3ltrs/hour. Not sure if this info is relevant

[88GreenVN]

Originally Posted by NickVR

Well to give you an idea, a VE Berlina has a rate of about 2.3ltrs/hour on first start up. After it's warmed up it sits around 1.1-1.3ltrs/hour. Not sure if this info is relevant

Thanks - I'll check mine tomorrow & hope it's close to 1.5 ish

[Haydz]

Will this work on a vr level 3 ???

[88GreenVN]

Originally Posted by Haydz

Will this work on a vr level 3 ???

Should work - it's the same trip computer

[kniever]

can you please explain this better to me? sorry im shocking at maths sometimes

cal.(new)=cal.(old)x fuel use(trip computer)
---------------------
actual(service station pump)


and also why is it 625? once ya do that calculation will it work out to be a number say like 638?

[88GreenVN]

Originally Posted by kniever

can you please explain this better to me? sorry im shocking at maths sometimes

cal.(new)=cal.(old)x fuel use(trip computer)
---------------------
actual(service station pump)


and also why is it 625? once ya do that calculation will it work out to be a number say like 638?

This is how I read it.

Lets say you fill up each week for 5 weeks 50 Litres each time = 250L

251.5 (TC)
250.0 (Pump)

251.5 div by 250 = 1.006

1.006 x 625 = 628.75

or

255 (TC)
250 (P)

255 Div by 250 = 1.02

1.02 x 625 = 637.5

or

249 (TC)
250 (P)

249 Div by 250 = 0.996

0.996 x 625 = 622.5

or

245 (TC)
250 (P)

245 Div by 250 = 0.98

0.98 x 625 = 612.5

Fuel flow balances the fuel put into the car to the amount the trip computer says been pumped out.