I have a 97 cobra with a MMR 5.0 motor swapped in back in June (5-6 months ago). When i first got the car back, it would barely cut out at the very top of the rpms, but not bad at all. At first, I just thought my timing was a lil retarded and runnin a lil lean and needed a tune for the new motor. Since then the cutting out has gotten progressively worse and today it was REALLY bad. At about 3800-4000 rpms the car will just cut out and not go, the tachometer needle will just stay stagnate and the engine sounds like there is no combustion. This leads me to believe I have a more serious problem than just needing a tune.
My last car was a 2000 svt contour that had a returnless style fuel system. It had the same symptoms and felt the same as what my car is doing now. I replaced the fuel pump and the car ran great. I don't know what kind of fuel system my cobra has, or if that has anything to do with it.
Any help on this would be greatly appreciated, I would like to make the right diagnosis before I go and spend $400 on a tuner and tune. Has anyone experienced the same problems with their cobra? If it is a fuel pump that I need, should I go with the stock fuel pump or something different? Thanks in advance guys.
My last car was a 2000 svt contour that had a returnless style fuel system. It had the same symptoms and felt the same as what my car is doing now. I replaced the fuel pump and the car ran great. I don't know what kind of fuel system my cobra has, or if that has anything to do with it.
Any help on this would be greatly appreciated, I would like to make the right diagnosis before I go and spend $400 on a tuner and tune. Has anyone experienced the same problems with their cobra? If it is a fuel pump that I need, should I go with the stock fuel pump or something different? Thanks in advance guys.
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