57 PSI MAY be a bit low, especially if your gauge happens to be a bit "off".
NO need to keep throwing $$$ parts at it... get a scan tool on it and SEE what info the throttle position sensor and the coolant temp sensor are feeding to the 'puter.
Does it NOT have spark? Or WHY did you replace the ignition module?
Have you tried squirting some gas into the intake through the open throttle butterfly with the air tubing disconnected? (Be SURE to get the squirt can of gas away from the vehicle to a safe place AND replace the air tube BEFORE trying to start it!!!!) Does it fire AT ALL?
(The CPFI "spider" fuel injection unit has 8 separate injectors bundled together with each pair of wires leading to the BIG connector separately and is UNLIKELY to fail completely so the engine won't even START.)
Also, take a look at the spark plugs. Is it POSSIBLE the engine "flooded" and fouled them... are they carboned and WET or clean and DRY?
ANOTHER thing you can try... with the ignition switched "OFF", disconnect the harness from the Mass Airflow Sensor, then try to start it. (A failed MAF sensor can prevent the engine from starting, with it disconnected the engine SHOULD start and it should run in "limp home mode" from computer-selected default fuelmap data.)
Another possibility would be a failed/slipped timing chain. You can verify the cam is turning by removing the distributor cap and seeing if the rotor turns while the engine is cranking. To verify that is hasn't "slipped time", there is a timing mark on the distributor body (marked "8") that must line up with the tip of the rotor when the engine is at #1 TDC with the line on the damper aligned with the notch in the timing tab on the plastic timing chain cover.
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Today's Featured Article - Harvestin Hay: The Early Years (Part 2) - by Pat Browning. The summer of 1950 was the start of a new era in farming for our family. I was thirteen, and Kathy (my oldest sister) was seven. At this age, I believed tractor farming was the only way, hot stuff -- and given a chance I probably would have used the tractor, Dad's first, a 1936 Model "A" John Deere, to go bring in the cows! And I think Dad was ready for some automation too. And so it was that we acquired a good, used J. I. Case, wire tie hay baler. In addition to a person to drive th
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