YASVT (Yet Another Sixteen Valve Turbo) - now 16V Whiteblock (LS)

[vwbusman66]

Originally Posted by JohnMc

Speeeeeeaking of eejits, I drove it the other day. Somewhat cooler weather, and it was acting all glub glub rich, too much fuel! So of course I set about driving it around some, doing a bit of autotune, doing a bit of smoothing, got it all running nice and clean again. Then... I happened to notice I'd left the IAT sensor unplugged after removing the cold side piping to refit that BOV. So basically it thought it was -100 bazillion degrees air temp.


*SIGH*

That did remind me though, the IAT has always unwaveringly said '70 degrees' - and I'm pretty sure it's not a wiring issue - because if I unplug the sensor it goes full cold, and if I touch the wires together (briefly, hopefully that's not bad, ahem) it goes waaaay hot. So it seems like the fixed resistance is coming from the sensor itself. I bought another one, we'll see if that works.

What are the odds it needs a pull-up resistor? Is the sensor meant for 5v or 12v? What does MS want to see.
Dumb questions and I'm sure you've already considered that, but worth asking.

[JohnMc]

Dunno. I was lay as hell when doing that part of the LS swap, I just got a DIY Goldbox and a prebuilt harness. Not the cheapest thing in the world, but it was ridiculously easy to slap together. Just had to add a few wires to the harness for things they didn't include (gauge sensors, starter, alternator). Started on the first try. w00t.

I'd like to think it's configured properly for the IAT sensor, but maybe it's just some small detail that escaped their attention?

[vwbusman66]

Originally Posted by JohnMc

Dunno. I was lay as hell when doing that part of the LS swap, I just got a DIY Goldbox and a prebuilt harness. Not the cheapest thing in the world, but it was ridiculously easy to slap together. Just had to add a few wires to the harness for things they didn't include (gauge sensors, starter, alternator). Started on the first try. w00t.

I'd like to think it's configured properly for the IAT sensor, but maybe it's just some small detail that escaped their attention?

This sounds like a Kenny question.

[linuxman51]

if it's 70 all the time it's in failsafe mode, i.e. the sensor is bad or the wiring has an issue. ms2 stuff has that baked in, I thought ms3 didn't though. I'd have to go look at one of the cars to see, perhaps post hurricane tomorrow if I think about it.

[JohnMc]

*lamest update ever*

All I did was start it up and back it out of the garage. Lol, I'm late getting it out of winter storage this year. I've been busy doing random other things.

Oh, I did get another toy:

(not my garage, my garage is a ****ing mess)

It's sort of a (somewhat) 'turbobricked' Miata. An '04 Mazdaspeed (factory turbo version) with a bored block, forged Wisecos, H-beams, bigger turbo, 3" exhaust all the way back, running on MS3 (A PnP DIYAutotune box). Running conservative low boost (10 psi), dynoed at 220 at the rear wheels. Sways, coilovers, Wilwoods up front. Loads of fun. It came with a hardtop and no soft top, I got a soft top frame from the junkyard and a new canvas top and wrestled that on today.

[Harlard]

THANKS FOR STOPPING BY AND SAYING HI, JOHN.

[JohnMc]

I've been making a little stack of parts to bolt onto it.
- Wilwood brake kit for the front (waiting on the last bits)
- boxed front lower control arms
- pondering something else other than the stock perches/IPD springs/Bil HD's... but probably won't right now

The fuel map shows it's currently at the limits of what the DW300 can feed on pump gas (ski hill forming in top right corner, not a good thing for sure)
- new gas tank
- dual pump setup
- hose/fittings/filter/etc for AN10 fuel supply (using the old AN6 supply line for the new larger return)
- so I can start running E85 and raising the boost