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I only have had the car for a week and was only looking at the speedo not the writing around it. lol I am going to go ahead and change the plugs today and get a code reader. I had them run it last week and it was the o2 sensors but it came back on . Just wanting to make sure it dosent say anything else. It still bucks and jumps at a crusing speed but runs perfectly fine when you stomp it. knida like when you are just barely pressing the gas. I will let you know how it comes out. Thanks for the info.
I figured that was the case. Running improper octane does damage to the cats which may well be the cause of the o2 code. One choice would be to buy a tuner, among other adjustments you can turn the sensors off. Not exactly sure if that would totally fix the problem but I'm sure it could help.