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random miss

  1. ZR2 - BlaZeR2 - Highrider
    My 97 zr2 4.3 cpi has a miss and stalls out when I stab full throttle I have replaced so far distributor, cap,rotor, wires, plugs,map sensor, iac,tps,maf,map, air temp sensor,fuel filter,fuel pump,egr gasket,egr tube, and it still has the miss and stall at open throttle any ideas
  2. 262ci Forum (4.3)
    Truck has 75k on it, new fuel pump 55psi @ idle, MAP @ idle 10.3 (19 inches of vacuum). Tight Distributor shaft, newer cap, rotor wires, fresh plugs, filters, cleaned MAF ... runs like crap at anything above idle but is smooth when accelerating. If i unplug the MAP she runs/drives fine sept a...
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