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Then I read and webbed about it and figured it only stuttered at around 1/4 temp or less. That's when it switches to sensor A from B at this certain heat range. The sensor only got worse over time. The drop in revs is from 300-500rpm and enough to stall the engine when the sensor is bad.
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Not true, the PCM uses an Angle based timing strategy for determining crankshaft position, The A and B inputs are housed in 1 sensor and the angle that is created is how the timing strategy is determined.
If the sensor loses its A or B input, an intermittant loss of spark will occur, usually this will lead to a momentary misfire condition, but depending on engine conditions the engine could stall.
When the timing stategy is loss the PCM bases its timing on the crank sensor signal it saw..
The reason why your engine only acted up at a certain temp was because electronic componants are temp sensative and faults involving electronic componants can occur when the temp of a componant changes
What else do you want to know about the Premium V ignition system
