Question 1

What does P0340 mean?

Accepted Answer

P0340 - Camshaft Position Sensor A Circuit (Bank 1). PCM not receiving proper camshaft position sensor signal.

Question 2

What are the symptoms of P0340?

Accepted Answer

Check engine light, Hard starting, Stalling, Rough running, Possible no-start

Question 3

What causes P0340?

Accepted Answer

Failed CMP sensor, Wiring issue, Damaged cam reluctor ring, Oil contamination on sensor, Corroded connector, Timing chain jumped

Question 4

How much does it cost to fix P0340?

Accepted Answer

Typical repair cost: $50-$300. CMP sensors usually bolt to cylinder head and are easy to replace. Check connector for oil contamination.

P0340 — Camshaft Position Sensor A Circuit (Bank 1)

Don't guess — diagnose P0340 the right way