P0340 on Opel
Camshaft Position Sensor Circuit Malfunction
P0340 on Opel vehicles indicates camshaft position sensor circuit malfunction. Au7o has documented this code across 1 Opel model — most commonly on Mokka. 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 Opel range from $700 to $3,000, 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 Opel by Model
Opel Mokka(1 issue)
- Mokka A 1.7 CDTI Water Pump / Timing Belt Drive2012-2019
The 1.7 CDTI water pump is timing-belt-driven in this engine. When the pump seizes or its impeller fails, the timing belt can be ejected — leading to valve damage. Failure typically appears between 80,000-130,000 km, often before the recommended belt service.
Looking for P0340 on a different make?
View P0340 across all makes →Frequently Asked Questions
What does P0340 mean on Opel?▼
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 Opel specifically, this code is documented across 1 model.
What causes P0340 on Opel vehicles?▼
Common causes on Opel: 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 Opel?▼
Repair costs on Opel range from $700 to $3,000, depending on the specific model and root cause.
Which Opel models have P0340 documented?▼
Au7o has documented P0340 on 1 Opel model: Mokka.