P0335 crank sensor circuit intermittent on a 2002 Chevy suburban 5.3. Vehicle has been to 2 other shops, pcm replaced, connector and sensor replaced.. Customer opted to do an overlay for high resistance in the ground circuit which is not even part of this failed sensor signal connection. Overlaying the circuit from the pcm to the crank sensor gives new wiring rather than spending time digging into dirty oily harnesses looking for the rubbed through wires.
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