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Could sort of make sense in my mind ( I'd need to go reading ).
a 4 stroke engine completes 2 full rotations of the crank for a complete cycle. also a camshaft turns half the speed of the crank ... so for a 360 of the camshaft, the crank will have turned 720 ... so realistically, the system will need to think in terms of 720deg when calculating things.
for each cylinder, I'd also expect the inlet valve to activate on one 360/rotation of the crank, and the exhaust valve to activate on the other 360/rotation of the crank.
Your figures are actually saying that. Your exhaust being in the first 360 of the overall 720 cycle, and the inlet being in the second.
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Given that its sporadic, and you've replaced both the sensors, could it be wiring connections / continuity being broken or interrupted rather than the sensors themselves being bad. V8 or else ...
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