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Starter is new and also the distributor. It cranks fast. Gonna try fixing the cam/crank code then look at what your telling me. But thanksStops mid-crank? HOW do you know the starter is "good"?
Defective or undercharged battery--insufficient amperage capacity
Defective or corroded battery terminals. "Black" corrosion is an insulator. Terminals need to be shiny.
Defective battery cables
Failing starter motor
Internal engine problems--hydrolock, broken parts, etc.
I would start by testing voltage at the battery cable connections on the battery, before cranking (should be 12.6--12.7 volts) and while someone is turning the key so that the engine is cranking (should be AT LEAST 9.6 volts, more is better, and 10.6+ is typical for warm weather.)
Nothing shown on the scan tool should interfere with cranking except--MAYBE--the cam/crank sensor correlation, and then only if the synch is so far off that the spark is jumping to the wrong terminal of the distributor cap.
OTOH, Vortec caps have a bad reputation for failed insulation, so that the spark jumps from one terminal to another. So I could imagine a failed distributor cap causing momentary problems when cranking. Seems kinda unlikely, though.
And i remember it start doing that after i replaced the crank sensor.Starter is new and also the distributor. It cranks fast. Gonna try fixing the cam/crank code then look at what your telling me. But thanks
Maybe there's a problem with the wires on the crank sensor harness? I've not had this with my trucks yet but have read it's a common thing.And i remember it start doing that after i replaced the crank sensor.