I have a serious problem that I cannot seem to narrow down. This thing barely starts! Once started, I have to feather it to keep alive until she warms up. Once warm, it will maintain an idle. However, no matter what she sucks in between 1500-2500 rpm. She will run fairly well otherwise and sometimes catch a little snap outside the afore mentioned rpm range. Here is what I have done in the last two days: Mass Air Sensor, Throttle Position Sensor, Coolant Temp Sensor, Plugs, Wires, Distributor Cap, Rotor, Radiator and Hoses. No relief, so I pulled the intake manifold and tpi (intake manifold gasket leak) and replaced all gaskets. Still no relief. Now I'm looking at the distributor module or replacing the distrib and module. What do you guys think?

 

Replace the coil/ignition control module. If that doesn't do it replace the stator/pickup coil. I have seen all of these go out and cause similar problems. If this doesn't fix it I'd look into to checking the fuel pressure out.

 

what about the egr valve? you had the intake off did you see if was stuck? you also mentioned many part changes but not the iac. right under the tps. try that. might help.