89 gmc searria cuts back when on the gas

or the fuel filter first check it then fuel pressure....

Thanks I'll check that out

@Kelly, I found out what was the problem. I had two sparkplug wires mix up. Starting to run fine, riding down the road it stops. Turn the key nothing. This is what I have changed on the 89 gmc. Alternator, starter, sparkplug and wire, fuel pump fuse, module under the distributor cap, egr, battery, throttle sensor, 5pin relay, idle air control sensor. I stump

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