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Originally Posted by xyinati
ok here is my problem w/ my 91 regal 3.8 custom. I have already replace ICM.ECM,MAF, plugs and wires check all the connections and I still have a problem. After about 10-15 min after its been running it starts to bucks and sputter when I push on the accelrater. It idles fine even after the problem starts. I have check the codes and get nothing. Please can someone HELP ME.
xyinati 
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Welcome to AF, your description is a little brief, is this under load, at high speed low speed? Try disconnecting the maf when this happens see if there is any change, check your connections at the maf, icm and crank sensor harnesses for corrosion or poor connections.