She's running goofy. Rough idle with a hesitation and bog on the low end. Mid range snappy as usual. Loss of top end rpms by about 1,000. Noticed a slight loss of high rpms the weekend before the low end bog appeared.
Plugs look good. Pulled on the power valve cables and they pull freely and snap back. I watched the servo and it does nothing if I blip the throttle wide open. But, after it comes back down to idle the servo rotates real quick and then goes back. Never watched the servo in action before so not sure how it is supposed to behave?
Threw half a tank of 91 in before I started having problems. Also filled my 2010 at the same time and it runs fine so the gas isn't bad. Could 91 make it run this poorly?
Any suggestions on what to check?
Plugs look good. Pulled on the power valve cables and they pull freely and snap back. I watched the servo and it does nothing if I blip the throttle wide open. But, after it comes back down to idle the servo rotates real quick and then goes back. Never watched the servo in action before so not sure how it is supposed to behave?
Threw half a tank of 91 in before I started having problems. Also filled my 2010 at the same time and it runs fine so the gas isn't bad. Could 91 make it run this poorly?
Any suggestions on what to check?