Post deleted by brokenwrench163

installed intake gaskets ran fine, after awhile started hard to start would start with start fluid and keep running. now full pump not running,replaced fuel pump,getting signal at relay pump still not running. would the massive air flow sensor at the air intake cause air shut down.(HELP)also what is the 1 wire sensor just below the oil pressure switch on back of the engine. (4.3 vine code x)

Verify power and ground to the fuel pump with a test light and use a fuel pressure gauge to see what the pump is doing.THANK YOU FOUND BROKEN WIRE IN FUEL PUMP HARNESS

Going to replace the filter first... you never know Otherwise it's decision time....replace the pump knowing i still need to replace the spider injector assembly before next winter... or get rid of the truck because it's been one headache after another