Code P0341, Cam/Crank Error: Notes

During cranking, Ignition Control (IC) module monitors crankshaft position sensor signal. Signal is used to determine correct cylinder pair to spark first. Module processes signal then sends a fuel control reference pulse to engine control module. When engine control module receives this pulse, all 6 injectors will be commanded to open for one priming shot of fuel in all cylinders. After priming, injectors remain off for the next 6 fuel control reference pulses from ignition module (2 crankshaft revolutions). This allows each cylinder a chance to use fuel from priming shot.

During this period, a cam pulse will have been received by engine control module. Engine control module will now begin to operate injectors sequentially based on true camshaft position. With engine running, engine control module monitors cam and fuel control references pulses received and expects to detect 6 fuel control pulses for each cam pulse.

1. Determines if conditions necessary to set code exist.
2. If 5 volts are not present at control module harness connector terminal cam signal circuit, camshaft position senor may be interfacing with magnet in camshaft sprocket. Bumping starter should correct this condition.
3. If a failure is induced in fuel control reference circuit, 5 volts on circuit should change when faulty wiring or connection is manipulated.