P0335 🔴 Critique ⚠️ Do not drive
Crankshaft Position Sensor Circuit Malfunction
The crankshaft position sensor (CKP) is the most critical sensor in the engine. Without it, there is no injection and no ignition. A complete failure means the engine stalls and cannot be restarted.
💷
Average repair cost
£12 — £180
🔍 Symptoms
- → Engine suddenly stalls
- → Cannot restart
- → Check engine light on
- → Repeated hard starting
⚙️ Common Causes
- 1Failed CKP sensor
- 2Damaged reluctor wheel (chipped teeth)
- 3Burned wiring (often melted by exhaust heat)
- 4Excessive timing belt wear
🔧 Recommended Fixes
- 1Replace crankshaft position sensor (~£12-40, 1hr labour)
- 2Inspect reluctor ring for missing teeth
- 3Check wiring — often melted near exhaust manifold
🛒 Recommended Parts (Amazon UK)
Crankshaft position sensor~£12-40
View on Amazon UK →Heat resistant wiring loom~£7
View on Amazon UK →Affiliate links — same price for you, we may earn a small commission.
Frequently Asked Questions
Can I clear this code without fixing it?
Yes, but it will return if the underlying issue isn't fixed. Clearing a code only tells you if the problem is permanent or intermittent.
Will this code fail an MOT?
Yes — this code will likely cause an MOT failure. Get it repaired before your test.