Quote:
Originally Posted by radroach
Yeah I agree it could have been bad gas. You don't know what you're getting when you're in Nowhere-Ville, how long their premium gas stock has been sitting. I'm not an expert on gas, but I generally avoid gas stations that wouldn't have a lot of customers buying premium.
But who knows what the newer ECU programming is. If it persists, I'd consider getting the car tuned and start monitoring stuff.
To add, are you guys sure that it's not normal operation? Do you get a stumble or is it truly rough all the time? The stumbling idle is pretty much normal if you operate window switches and other electrics at idle.
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There are times when mine moves around a bit and it seems to just be normal engine operation as the AC and other stuff turns on or off.
But what I'm seeing sometimes is a drop below 500rpms. About 3-4 times now, it's dropped low enough to make the engine miss a beat and come back. The rest of the time, it's still bad enough that you can feel the engine shaking through the car.
I've had my car in twice now to tell my dealer about it. The first time, they said the car was just trying to save gas and run lean. The second time they hooked it to their scanner and couldn't find anything. And they didn't see any TSBs for the car, either.
I have no power mods done to the car. Actually, this has been holding me back from doing anything to the car. As I don't completely trust it right now, I'd hate to throw some headers and a tune on it only to get a CEL later and have the dealer tell me I've voided my warranty.