Lambda sensor data

[Rogerrust]

Hi I have a V6 Petrol, I have just checked the voltage at the Lambda sensor - does anyone know if this sounds about right;

Tick over 0.35 volts
Accelerating 0.68
back to tick over - Drops back to 0.35 but takes about 60 seconds to get back down.

I had a problem with a poor connection at the plug but this seems to be OK now.

I'd like to get a few more mpg (wouldn't we all) and don't know where else to look I've fitted new leads and plugs.

its about 19 mpg on LPG gas and a bit more on petrol but I nearly alway run on gas.

Some people quote higher figures but I don't know if they are being optimistic I drive 17 miles to and from work with a light right foot in rural bedfordshire and don't get stuck in traffic.

Perhaps I'm not being realistic looking for better than 20 mpg but it would be good!

Oh I forgot it has a side conversion so isn't travelling light.

[g8dhe]

That MPG is about what we get;




Long runs on the motorways 22-24mpg, around town sub-20mpg, we too have a full side conversion and rarely travel that light!

[mikeWalsall]

Mine is a side conversion always two of us .. two dogs .. and general clutter.. plus my A/C is generally permanently on both in winter and summer ..

I tend to drive as an auto .. but do make full use of manual / Hold when I feel the need for the extra acceleration / performance of the superb V6 engine ..

I keep meaning to check the MPG on LPG but never have .. but I am always pleased with the ££ss of LPG I put in .. compared to the amount of running around I do ..

I must say that the biggest improvement I have made to mine is fitting new plugs .. leads .. rotor and cap .. the improvement to the running of the engine was remarkable ..

[Rogerrust]

Any ideas what the Lambda should read I think 1 Volt is the max with loads of Oxygen so 0.35v sounds OK to me but I really have no idea if it's in range.

[g8dhe]

The manual states;
O2 Sensor
Warm engine,
Disconnect the o2 sensor connector,
then,
When idling 0~1.0 Volts
When accelerating 0~0.5 Volts
when decelerating 0.5~1.0 Volts

[GreenBongo]

Once its warmed up it should continuously switch between around 0.3V and 0.9V.