How could the secondaries not opening or staying closed make the mixture rich enough to kill the cats?
Sounds more like an oxygen sensor issue to me, but I could be wrong.
Unless there's a bug in the PCM program that led to this, make the reflash necessary...
-Lance
Lance Kinley
CEG Webmaster
95SE, "Official CEG Beater"
Quaife, SVT parts, ST200 wheels, SS Y-pipe
I perceive you to be a stand-up, rational individual...
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