Looks like you just did...

He actually started this site. He's greatly missed.

You mean like a Prime pulse? All GM ECMs do that AFAIK.

The images are not showing up.

However, the 3 wires are for the coil, 12V ignition (that feeds the Ignition Control Module), coil negative (triggered from the ICM), and a ground (connects to the...

The datalogging rate is fixed, which as you suspected is linked to the baud rate.

Some people have modified the datalogging side itself to update certain parameters more often, but it's a lot of...

Honestly with a 12 cylinder engine, I wouldn't even look at a GM ECM. AFAIK, there is no setting and CALPAK/MEMCAL for any OBD1 GM ECM, especially a TBI ECM that will have settings to properly divide...

Before doing any tuning, fix your charging issue, or the way you're reading the voltage.

12.4 isn't even maintaining battery voltage, you need at least one volt above nominal battery voltage to be...

The ECM output for the fuel pump is on whenever there is a DRP (Distributor Reference Pulse, AKA and RPM signal), in addition to the priming pulse. The way GM set this up was that the fuel pump would...

I was thinking more along the lines of the Sy/Ty and Code59 type boost control, which has worked well for me. The tables are there and allow for lots of adjustment.

Neat.

Any plans for adding ECM controlled boost?

The ALDU1 IS the Xtreme ALDL, just one is the the name and the other is the part number...

As far as the glitchy data, it could be the ADX you're using, it may have the initial comms not quite...

To be honest, I never had much luck with the 2 transistor cable, especialy when trying to adapt to USB. The two transistor cable only allows for TTL like signals (0 to a positive voltage) and most...

Where abouts in Canada... I'm also a Hoser. lol

There are two grounds for that WB. One is a power ground, black, and should be connected to the engine where the ECM is grounded (tying into the ECU ground nearer the ECM is also ok), and there is a...

The ECM is not even in the mix for spark while cranking, so you can rule out the ECM being the issue there.

The ignition will be base timing triggered directly from the ICM and crank sensor/dizzy...

Have you tried disconnecting the TPS on an engine start attempt?

No, bad checksum will not brink an ECM, at least not OBD1 ECMs.

No, checksum is only updated when the bin is saved. This is why checksum needs to be disabled during emulation.

So are you saying...

I know this might sound dumb, but I've done this myself...

Are you sure you have the ribbon cable installed correctly in the MEMCAL adapter?

About checksum. TP automatically updates checksum...

When's the last time you did a tune up?

There's really no reason that a stock engine (assuming, since there's no indication otherwise), shouldn't pass emissions with a stock bin, though the lack...

Most Hilborn conversions place the injectors on the inside of the manifold.

Size the injectors to your expected power. There are a few ways to mount and plumb them, welding in bungs and then...

Yes, add an IAC.

I would also add a VSS (I missed your earlier post asking about any additional sensors)

Yes, the 27SF512 will work in the '165, G1 is the adapter you need.

It may be easier...

Yes, the only difference between large and small cap is the size, effectively. The signals in and out are the same. GM liked to keep a lot of things the same.

I was going to suggest this as well.

Back to the original topic...

From what I've seen S&P did some pretty hacky shit to get TPIs to run on as few sensors as possible, which would work, but...

The math involved to run DIS requires a negative value for a couple of the settings, I don't recall the math on it, but mathematically it makes sense. It's probably the way the XDF was created that...

Since you plan on going turbo, and you need to start over, I would start with a mask that will work with boost now.

My go to would be $59, which is an enhanced version of $58...