LT1 Hesitation Question???????
LT1 Hesitation Question??????? I have a 95 Formula with 80,xxx miles on it and have a question. The car for some time now has had a hesitation. It is felt the most when its cold and you are accelerating between 1500-2000 rpm's. You can hold your foot in one spot and when it get to those rpm's it just stumbles, sometimes pretty bad. While it stumbles if you give it more throttle it will pick up. It seems to go away when it warms up. I just recently replaced the plugs and wires (ngk tr-55's msd 8.5 mm wires) to see if it would help it any and it seems to be the same as it was before I did the plugs/wires. I have also replaced the fuel filter. The car has not thrown any codes at all. I am debating on changing the opti next to see if it will correct the problem. Also would a lt4 Knock module be something I should think of installing?
Any info is appriciated.
Rob
Any info is appriciated.
Rob
Still has the stock opti in it. I got the car with 50K on it and it ran fine. The hesitation started around 5k ago. Would I be better off replacing the stock opti with the new MSD billet one or getting the MSD cap and rotor set and installing that on my stock opti?
