Do you need an extra module for Megasquirt (any version?) to use a wideband lambda sensor? Or will it just plug in, in the place of a narrow band but give you the full scale?

Also a bit un related, but I was looking at the circuit boards and some of the soldering on the chips looks very fiddly, is it that hard? Im not bad at soldering but it looks like you need a surgeons hand for some of it!

Don't know about the module, (yet). The soldering of the bits is a little tricky on a few of the items, especialy the little three leg transistors. I found that I had to sharpen my iron tip to a long fine point, ( to mean to buy a new tip ), and not use too much solder, as you can bridge the connections. But in the main spent an enjoyable few hours putting it together. Regards, Ray

You can't connect a wide band sensor direct to Megasquirt. You need an intermediate box to decipher the signal.

If you buy an LC-1 type it comes with this additional hardware wired into the main lead.

If you're a bit worried about your soldering then make sure you get sockets for all the IC's (chips), that way it's only the socket you'll be repeatedly heating up when you solder 3 legs together and not the chip itself Most of the kits do come with sockets for most if not all of the chips, but if you're short they're cheap enough from somewhere like maplin.

And for god's sake never ever try to solder electronics with one of the 'chisel' type tips on the iron, get a proper point tip (most irons have interchangeable tips, again cheap from maplins).