DTC 143 - Never Crank Synced At Start
Circuit Description
The crankshaft position sensor (CKP) is a magnetic transducer mounted on the engine block adjacent to a pulse wheel located on the crankshaft. It determines crankshaft position by monitoring the pulse wheel. The crankshaft position sensor is used to measure engine rpm and its signal is used to synchronize the ignition system.
The ECM must see a valid crankshaft position signal while cranking before it starts. If no signal is present within 4 cranking revolutions, this fault will set.
Bad crank sensor adjustment or just a bad sensor or damaged or faulty wiring most likely.
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