P0340 on Mitsubishi
Camshaft Position Sensor Circuit Malfunction
P0340 on Mitsubishi vehicles indicates camshaft position sensor circuit malfunction. Au7o has documented this code across 1 Mitsubishi model — most commonly on Galant. This code means the engine computer lost or received an erratic signal from the camshaft position sensor. That sensor tells the computer the exact position and speed of the camshaft, which it uses together with the crankshaft sensor to time fuel injection and spark precisely. When the camshaft signal is missing, intermittent, or out of range, the computer sets P0340. Symptoms often include hard starting, stalling, rough running, or a no-start because the engine can't time itself correctly. Typical repair costs on Mitsubishi range from $150 to $350, depending on the specific model and root cause.
Common Causes of P0340
- •Failed camshaft position sensor
- •Corroded or loose sensor connector
- •Damaged or shorted sensor wiring
- •Bad reluctor/tone ring on the camshaft
- •Loose timing chain/belt or jumped timing
- •Metal debris or oil contamination on the sensor tip
- •Poor sensor power or ground supply
- •Faulty PCM/ECM (rare)
P0340 on Mitsubishi by Model
Mitsubishi Galant(1 issue)
- Crankshaft position sensor failure causes stalling / no-start1994-1998
The crankshaft position sensor on the 2.4L (4G64) Galant fails with age and heat, sometimes intermittently. Because the ECU uses this signal to fire spark and injection, a failing sensor typically produces a hard-start, an engine that cranks but will not start (often after the engine warms up), or sudden stalling while driving, frequently with the check-engine light on. The sensor is a three-pin Hall-effect unit mounted to the front of the engine reading a trigger plate.
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View P0340 across all makes →Frequently Asked Questions
What does P0340 mean on Mitsubishi?▼
P0340 stands for "Camshaft Position Sensor Circuit Malfunction." This code means the engine computer lost or received an erratic signal from the camshaft position sensor. That sensor tells the computer the exact position and speed of the camshaft, which it uses together with the crankshaft sensor to time fuel injection and spark precisely. When the camshaft signal is missing, intermittent, or out of range, the computer sets P0340. Symptoms often include hard starting, stalling, rough running, or a no-start because the engine can't time itself correctly. On Mitsubishi specifically, this code is documented across 1 model.
What causes P0340 on Mitsubishi vehicles?▼
Common causes on Mitsubishi: Failed camshaft position sensor, Corroded or loose sensor connector, Damaged or shorted sensor wiring, Bad reluctor/tone ring on the camshaft, Loose timing chain/belt or jumped timing. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0340 on a Mitsubishi?▼
Repair costs on Mitsubishi range from $150 to $350, depending on the specific model and root cause.
Which Mitsubishi models have P0340 documented?▼
Au7o has documented P0340 on 1 Mitsubishi model: Galant.