I replaced my ignition coil, fuel pump, fuel filter, spark plugs, wires, cap, and rotor and I'm still bogging out from extended stops. If I put the car in neutral at red lights and back in drive when I'm ready to go I have no problem. I don't want to mess up my transmission doing this all the time. I thought it might be the mass air flow or the injector but both parts are very expensive so if anyone has had a similar problem or had to do this before PLEASE give me some advice!!!
1997 Blazer 4.3L V6

 

Does the check engine light come on with the bulb check and then turn off?
Is the check engine light on or flashing while driving?
If so, What DTC's are in memory?
Check fuel pressure and leakdown and post the results.
Did you use AC Delco plugs, wires, cap & rotor & fuel pump?
Does the transmission shift properly?
Are there any electrical "issues" or "gremlins" with the vehicle, (possible faulty ignition switch, very common with 1997)?

 

I had the same problem changed fuel pump and spider injectors problem solved