Autosport Labs

It's not something as basic as a loose connector, or a dry joint? Perhaps engine vibration is causing a disconnection. Try waggling the wires and connectors while measuring the voltage on the TPS wiper (white wire). Also check the Molex connector, as they can cause problems if the pins aren't crimpe...

Brent, Have you thought about how the V3 unit will be modified to cater for the new Aux input functionality? The reason I ask is that I am just about to wire in a wideband AFR sensor controller (JAW), and it would be useful if I could make the mods while I've got the dashboard off, even if the firmw...

Ah - I understand - so it could adjust the ignition setting depending on the current AFR reading, for example? Sounds useful - but it'll be another complicated thing to set up!

Well, it's colourful!

Could you explain what you mean by 'Advance Correction', and how it would apply to the engine's ignition? I'm not sure I understand what it's there to achieve.

Cheers,
David
(surviving in ignorance, as usual!)

I'd be more interested in putting it inside the MJ box to supplement the data logging - and to drive a row of LEDs!

Following on from Brent's announcement regarding the next firmware upgrade, some folk might be interested in this device . The designer of the JAW Lambda/AFR unit is planning to produce a very small sensor management unit that will give a 0 - 5v output. I'd guess that it could be used as an analogue...

I believe that reliably detecting knock is the hard part - noticing when it's happening, and not triggering on false events. It's all down to tuning the filters to match the engine. Might be beyond us mortals!

Actually doing something with the knock signal is the easier part.

MartinM wrote:...plus, on some engines, a rather entertaining set of noises (aka explosions) and flames when the sparks come back, as the unburnt fuel in the exhaust manifold/pipe ignites

Sounds like fun!

brentp wrote:Very cool, David! Excellent weekend project.

How about mounting those buttons on the steering wheel?

It had crossed my mind...

I've been tinkering this weekend, following on from something said in another thread... When I'm driving along I want to be able to start, stop and mark logs without having to muck about with the laptop keyboard - not a good thing to do when you are supposed to be concentrating on your driving! :D R...

Looks good. Just 1 comment - it's a shame that it doesn't have a USB interface, considering all the issues people have had with serial-USB adaptors. However that's only a "wouldn't it be nice" observation!

I look forward to the new software with the external input stuff...

cheers,
David

I think I'll try and find a broken keyboard at work (we have many PCs!) - one that functions properly but has keys missing, that sort of thing. The key control circuit board is usually tiny, and it shouldn't be too hard to work out how to replace the keypad with a few special buttons; it's only a ma...

I suppose that it wouldn't be too hard to make up a little box that sends the space character to a PS/2 or USB port... time to Google, methinks...

Brent, It's probably far too late, and probably too awkward, but I thought of another useful enhancement in a similar vein to this one: At the moment, if you're logging data on a run, you have to find and (hopefully) press the space key to register a 'point of interest' on the log - not a good thing...

I'd suggest that you fit a small petrol trap - a little air-tight pot with 2 pipes in the lid would be fine. Any petrol would fall into the pot and not get into the MAP sensor. If you can find the right sort of pot, you could unscrew the base and empty it now and then. I'd also consider putting the ...