Also pressure sensor code comes up .
SOURCE: 99 chevy blazer start truck fine then next time go
Fuel pump relay sound bad. Under the hood in the fuse box is the location of the relay. Look under the cover for the diagram to locate it faster. Hope this helps. Please keep me posted. Good luck
SOURCE: engine cranks but won't start
I firstly would check relay. You can use an ohmmeter to check the resistance of the relay. If you get a reading, it is good, If not it is bad. Than disconnect fuel pump wire harness and do the same.
SOURCE: engine wont start
if you can hear the fuel pump when turn the key on with out turning the engine, then it could be that your fuel pressure regulator is broken, check your fuel pressur.
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