Last try...O2...Fuel pump...what is it??

Bigme574

Registered User
What would cause an SC with essentially all new parts in the engine as well as EGR feel weak when cold? When accelerating after start up the car will feel like someone is holding it back, then all of the sudden it will kick back to life. This feeling dissapears after the car warms up. Is there a vacuum leak that seals when warm, bad O2 sensors, or possibly slowly failing fuel pump (it is noisy). Thanks for reading!!!

Aaron
asheets1@umbc.edu

89 SC 5-speed
new HG, oil pump, water pump,
FPR, Radiator, T-stat, Motor mounts,
Crank sensor, BHJ balancer, plugs, wires,
Mobil 1 Synthetic.
 
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