95 Mustang Gt 5spd Bucking and Hesitation problem Also ECU Prob - Forums at Modded Mustangs
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post #1 of 1 Old December 30th, 2011, 05:39 PM Thread Starter
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95 Mustang Gt 5spd Bucking and Hesitation problem Also ECU Prob

I picked up a 95 mustang gt 5.0 5spd when i bought it the car was having a few issues but ran good. If you are accelerating easy the car tends to have a hiccup or buck under a very easy load. It will also do it under wide open throttle at higher rpms every now and then under acceleration it will just fall dead on its face for a few seconds and then jump up and go. I did a KOEO self test and came up with 6 codes 621,622,624,637,652, and 654 Checked them and all the codes are for an auto trans. I pulled the kick plate and low and behold the computer in it is a U4P0 F4VP-12A650-CA AUTO computer. I am wondering if this can be the coulperate to all of my problems

The only mods on the car is a BBK cold air intake BBK 70mm throttle body full exhaust minus cats still has O2 sensors I actually just put 2 brand new ones on it I also did new cap and rotor as well but i am stopping there I am not going to just start throughing money at the car until its fixed. Any info at all would be great
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