Possible major boot leak. Do you have a boost leak tester? You can make one for a couple bucks and definitely fix the boost gauge.

Been watching this build, love it!. Keeps me motivated. Thanks for the updates.

Looks like the right to me as well. Not 100% though.

Nice to a DSM on the PFI channel

Not by me, not sure what the previous owner had done, its stock bore and pistons which weren't too bad but 177k miles I bet somebody got in it before and just did a stock overhaul. It almost looks like there was a saddle bearing used buts hard to tell because of how hard that crank tore up that...

So I had some issues with smoking after idling for a bit so I did a comp test and had 90 across the board dry and wet so I decided to yank the head. I found some leaky valves and the composite headgasket was a mess, which was what I thought. I figured while I was here I would fresh up the bottom...

+1 on the oil, boost and wideband. Autometer oil and boost and AEM WB.

I want one!

As long as it is a ECU out of a 95 96 or a 97 you would be fine. The 98 and 99 (blackbox) ECU's are different. I believe the CAS/firing order is different and would require you to swap plug wires around.

I had the same exact issue that you are having when I bought my current DSM (99gsx). I went through and checked continuity, replaced/swapped coil packs, replaced plugs, plug wires, cas. It ended up being the ECM. Do you have another one available to swap and try?

Waco4g63 submitted a new DSM Profile :99GSXRead more about this vehicle here...

Man I dig it, I think it looks sweet nice and clean. Keep the photos coming!