Re 93 octane- It's the first time I can remember wishing for worse gas mileage. I've got about 1/4 tank of 87 left, and I want it all gone before I refill with 93. Then I will reset the PCM by disconnecting it and the battery. Hopefully it runs a lot better then.
I'm thinking (hoping) GM made it pull more than enough timing to save the engine (at least when it's in good condition-carbon deposits causing hot spots would be asking too much) so they wouldn't be replacing engines every three days when people want to "save money" by getting worse mileage on 87 octane.
Pics soon. My next project is to deal with that cat that's been climbing on our vehicles. Pawprints show up REAL WELL on black. Little vermin.
