P0350
Camshaft Position Sensor Circuit Intermittent
Powertrain Ignition System Camshaft Timing Control 🟡 Moderate — Fix within a week
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What This Actually Means
In plain language — no jargon

Your engine's camshaft sensor is sending spotty signals to the computer, like a radio station that keeps cutting in and out. The ECU can't reliably sync ignition and fuel timing, which causes performance issues.

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Symptoms You May Notice
3 known symptoms for this code
Check Engine Light (intermittent or steady)
Rough idle or hesitation during acceleration
Possible stalling or hard starting
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Embedded Systems Insight
What the ECU/ECM is actually computing

The ECM monitors the camshaft position sensor signal for consistent voltage transitions that correlate with cam rotation. It expects a clean, continuous signal pattern; if the signal drops out, becomes erratic, or fails to sync with crankshaft position, the fault is triggered. This is an intermittent code, meaning the problem is not constant—it comes and goes.

Voltage & Parameter Thresholds

Parameter Normal Range Fault Condition
Sensor Signal Voltage 0.5–4.5V with clean transitions Intermittent dropouts, noise, or absence of expected pulses
Cam-to-Crank Correlation ±5° timing variance tolerance Correlation loss for >2 consecutive cycles
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Diagnostic & DIY Fix Guide
Check these in order — from cheapest to most complex
1
Engine Oil and Oil Filter
Low or dirty oil can cause intermittent sensor performance; change oil and filter, then retest.
2
Camshaft Position Sensor Connector
Inspect and reseat the sensor connector for corrosion or loose pins; clean with electrical contact cleaner if needed.
3
Camshaft Position Sensor
If connector and wiring are clean, replace the sensor itself as it is likely failing intermittently.