The new radiator is installed but I still have the mounting issue. Working on it. However, I fiddled with the SPAL fan controller and reset Low to 196 and Hi to 216 (according to the ECT readings in my OBD scanner). In 85-95 degree town and highway driving it floats in the mid-high 190s up to 207-210 max. It doesn't stay at 207-210 for more than 20-45 seconds unless I'm pulling a really steep grade at 65-70 MPH and only as long as its climbing - as soon as the grade starts to level it drops like a rock. I did see it hit 214 twice for just a few seconds before dropping back to 207-203. It hasn't even gotten close to turning on the second fan. So, I'm very pleased with the cooling system now - pretty much the engine is back to running exactly the same as my unmodified 2003 3.5L Limited runs. Goodness! <img src="/forums/images/graemlins/kewl.gif" alt="" />

I finished the pin-out for the 1999 PCM install. I've checked all the pin-outs and notes over and over and I've been cover to cover half a dozen times on all three volumes of both the '97 and '99 Sport manuals. As much as I hate to say it, I've learned a lot about how the ECM/PCMs were programed and have a really good grasp of the wiring.

I ordered all the miscellaneous wiring and resistors last week and it's all arrived. I sent Boomslang the pin-out last Monday and they had the custom harness and extender harness to me by Friday. Four days is pretty speedy. <img src="/forums/images/graemlins/kewl.gif" alt="" /> I ordered a standard '97 ECM extender harness because I'm pretty sure I'll end up with a Megasquirt in the end. My confidence level still isn't very high that the '99 PCM swap will work in the end. I know there's stuff that Mitsu just doesn't document anywhere, so at this point I'm keeping my fingers crossed but I'm not holding my breath. <img src="/forums/images/graemlins/confused.gif" alt="" />

'97 harness to '99 PCM pin-out


This is what I'm thinking for a Megasquirt. My Sports have to have barometric correction. 10,000 ft. in altitude change is way to much variation. The MS3X is required for sequential fuel injection - so that's kind of a no-brainer. It'd also be nice to plug in the Mitsu 3.5L knock sensor to the new knock board DIY just released.

MegaSquirt-III w/MS3X Expansion V3.57
MapDaddy 4 Bar MAP Sensor with Barometric Correction
MS3 Knock Module Kit
8' MegaSquirt Wiring Harness (MS1 / MS2 / MS3 Ready)
8' MegaSquirt Wiring Harness for MS3X
Weather Pack 22 position bulkhead connector kit (2)

So, a parallel install managing fuel and ignition. Maybe the IAC, although it's not necessary.

I figure, since I have the pin-outs already figured out, I'd put together a parallel MS install document. Not that there's a ton to do there if its just fuel and ignition.

I'm going to try and snap some pics of Boomslang's stuff tonight or tomorrow. But, we're off to Moab in two days so everything else is on hold until we get back late next week.

Edward