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Acceleration issues 2006 Grand Prix

N

Natta

New member
hello. I am new to the site so bear with me. I have recently purchased a 2006 Grand Prix GT and it has some issues, or an issue. The service engine light is on and the car seems to have an issue going into 2nd gear. I have a Buick Century that had the same issue but there was a wire with a hole in it and that fixed that issue. I have changed the plugs and wires but its still the same. It seems like it may be the fuel injection or an O2 sensor, I think this car has 2, but I am not sure. I know a little about cars but not a lot. I don't like taking cars to shops being that I am a woman and they try to tell me all kinds of things are wrong, so i try to get a general idea of what to ask for. Can anyone help me with this?
 


Well, I only put gas in it once and it was regular 87. Im not sure what the previous owners used though.
 
take a ride to auto zone or any other parts store that has a scanner to read codes for free, that code will most likely tell you where your problem is and where to start.
 


So 91 gas, ok I got it, thanks. And I will take it to Autozone today and let you all know what I find. Thanks for the feedback.
 
What Matt said for octane. As for issues: O2, knock, Cat clogged. Go get it scanned and report back to help us narrow it down.

Very possible your car is pulling time to reduce knock.
 
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