TBI 350 misfire

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Conner

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I'm new to posting on to forums so please correct me if I'm posting in the wrong section or do something else wrong. I recently purchased a 1995 k1500, the odometer reads 300k. The engine is misfiring, and I've tried almost everything I know. I'm trying to get some guidance so hopefully I can stop throwing money at this. The engine originally misfired between 1500-2500rpm when you feathered the gas like clockwork. Now it does that spontaneously and once it reaches operating temp. the engine, stalls, spits, sputters, and ticks I can floor the gas and it will go no where. I've replaced the whole fuel and ignition system, all my sensors, and a handful of other misc. things that could cause this issue. Has anyone ever come across this issue and can help me out?? Thanks
 

Conner

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I haven't pressure tested the line, but the fuel pump, fuel filter, and FPR have been replaced and the TB has been disassembled, cleaned, and put back together. Both injectors spray at a good even rate and appear to have good volume. Could I still be having an issue with low fuel pressure after replacing all that? I know none of the lines leak.
 

Conner

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Yes, I have that was also one of my first thoughts. I can give a full list of everything I have replaced if it will help out
 
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