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How do you recalibrate the crankshaft sensor after you change the computer on a 1998 Chevy blazer?
Wiki User
∙ 12y ago
hi don't believe its the crank sensor that's needs calibration it is the computer it self even if it was used you need to send it to dealer with vin # and they will re program it for you forget how much it costs but is under 100 hope this helps jerry what computer did you change dose the truck start
Wiki User
∙ 12y ago
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No.
Crankshaft sensor purpose?
The crank sensor (real name is crankshaft position sensor) senses when a notch on the crankshaft goes by and sends a pulse to the car's computer. This tells the computer where the crankshaft is in it rotation so that the computer will fire the spark plug at the correct time. This also allows the computer to change the timing under different conditions such as if gas of too low an octane rating is being used causing predetonation (called knocking) which is sensed by the knock sensor.
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What does a crank sensor do?
The crank sensor (real name is crankshaft position sensor) senses when a notch on the crankshaft goes by and sends a pulse to the car's computer. This tells the computer where the crankshaft is in it rotation so that the computer will fire the spark plug at the correct time. This also allows the computer to change the timing under different conditions such as if gas of too low an octane rating is being used causing predetonation (called knocking) which is sensed by the knock sensor.
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You have to change from the block up including the heads, intake, Computer and wiring.
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