Jonathan Kay

As Myles says. Done any recent work on it? Check inertia switch and connections including earths and trace feeds with a multimeter. If you get to the point where you have the ignition light on but the fuel pump doesn't run then check the feed voltage to the pump or run a jump lead to it to test. Jonathan

On my R400D I put a 1000ohm and 2000ohm resistor in parallel with the fuel gauge wires from the sender (giving 667ohms of parallel resistance to the sender unit). With this value the gauge gives both a slightly better indication of full and is on zero with 7 litres in the tank (which seems to be about the minimum to avoid fuel starvation at the track). Due to the sloping bottom of the tank, a completely different float position and design would be needed to get the gauge to read zero when fuel in the tank is also zero. This sounds like the best approach to me. Would people be interested in a general-purpose circuit that allowed recalibrating the gauge display? I think someone has already published the resistance-level map. I suppose there may be more than one type of map. I'm surprised that more people who aren't happy haven't done the following: 1 Empty tank. 2 Mark gauge with a Letraset line or similar. 3 Add 5 litre of fuel. 4 Mark gauge. 5 And so on until full. 6 See if using those marks works out better in practice. Jonathan

Anyone else like one as part of their winter modifications? Jonathan

Doh! Jonathan

Not sure about that. I think the same fuse usually feeds both sides so it can't be that. Could be where the wires diverge but faults around the bulbs, lampholder and earths are so common that I'd put my money on two of those. (Bayes rather than Gilbert of Occam.) Jonathan

It's one of the best examples of the configuration of power units and drivetrain that is currently optimal for many owners/ vehicle niches. But the fuel tank on the range extender engine is too small. Jonathan

Yes, I don't understand it and have asked the same in another thread. When we do understand it... are all 3 needed? Jonathan

That's a bit unusual. Check the bulbs. Do you have a multimeter already? Jonathan

What does "Active Topics" and "New and Updated Topics" mean? And then... do we need both? Jonathan

If I create a link by typing the link text then adding the URL it works. If I do the URL first then the text the URL is only linked to the first charcter of the text. I'm using Safari on OX X. Please could others test. Thanks Jonathan

Test 2

Legend

How about organised by general location (e.g. rear suspension, front suspension, steering, mounts, front brakes, rear brakes) and then within that by head size to minimise the fiddling? Does anyone use dabs of paint to help? Multiple colours? Jonathan

Quoting anthonym: I do wish there was a spanner check listWhat should that look like? There is a very useful listing of what's in each fastener pack. Each chapter of the Assembly Guide has a table giving the torque settings for the relevant bolts. Jonathan

*arrowup*I don't understand. How will recalibrating affect your range? How about marking the glass on the gauge with gallons from empty using something like Letraset or bits of tape? Jonathan

With that sort of wiring and dash what happens to the ignition and the warning light if the immobiliser is set or the inertia switch is tripped? (Crossed posts.) Jonathan Edited by - Jonathan Kay on 22 Sep 2014 19:27:01

BlatMail sent Jonathan

Thanks, Paul. Does the ECU fuse going live help to pin it down beyond that? Jonathan

Hmmm... Bad ECU or bad connection between that fuse and the ECU or bad earth somewhere that affects ignition but not lights? Where does the ECU get its earth? Check the engine earths. Is there a convenient connector close to the ECU that you could open to check what's getting to it. We'd need a pin diagram for that to work. Jonathan

OK. Is that fuse going live when you turn the ignition on? ... I'm not familiar with master switches... can anyone spot what I'm missing... Jonathan

Check the fuse to the ECU. Is it blown and what rating is it? Jonathan

Quoting Erngor: Went to use the car today, turned on the battery master switch and nothing. I have checked out the master switch using the LC7 fitting instructions as a guide and I have 12.96 volts at the respective terminals when the switch is on the OFF and ON position, and a earth connection from the resistor It didn't start... but did anything electrical work? Ignition light? Lights? Fuel pump? Jonathan

:-) Jonathan

It's good to know that someone's keeping up! :-) Jonathan

Will the new website make it easier to manage threads? Jonathan