My 96 Grand Am has been having trouble keeping a steady idle when your
going between 45 and 50 mph. It will go up to 2500 rpm when it's shifting
into overdrive but then if you keep your foot on the gas the rpm's drop to
1200, so it starts to shudder because it doesn't have enough power. If you
take your foot off the gas and reapply it, it will do okay for a second
and then start it agian. I've already replaced the plastic housing that
connect to the spark plugs because it blew that up last week. And then to
days ago cylinder 1 was misfiring so I changed all the plugs. I can't
figure out what is causing it to misfire and lose power, anybody got any
ideas. I was thinking maybe the fuel injectors, but wanted to make sure no
one else has had this problem first. Thanks

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