The rivets are all in good condition and it looks like the two halves are pushed together as far as they can go. All 6 rivets look good to me (I had to remove the intercooler connecting pipe to see the others)...

The only major change recently was that I did my spark plugs, for which I needed to move the vacuum reservoir out of the way, and I attached my boost gauge. Any chance the ECU is just adjusting to something I did? Or maybe I nicked something?

I took the time today to replace as many of the vacuum hoses today with silicone from hosetechniques, especially around the vac reservoir on top..probably not going to change anything in this situation (and I hate introducing new variables)...

Thoughts on what else I should check?

Thanks :)
Dave

(and ( 01 225QC LS )
( VTDA | Forge 007 DV | Revo Technica Rev2 Boost Gauge | H&R 21mm Rear Sway | 3.2 Rear Valance | 17" Stock Rims | 17" ASA JS5 Silver ))