P0460 — 2 documented meanings by make

P0460 does not mean the same thing on every car — manufacturers reuse the number for different faults. 1 make documents it: Opel / Vauxhall, plus 1 meaning without a make on file. Find your make below.

P0460 on Opel / Vauxhall

On Opel / Vauxhall vehicles P0460 is documented as: Evaporative Emission Control System Leak Detected (gross leak). P0460 points at evaporative emissions system. The standard definition names the system involved; which part inside it has actually failed is what the checks below establish, cheapest first.

Usually one of: Fuel cap not sealing or the wrong cap fitted; Cracked or perished breather hose; Purge valve stuck open; Charcoal canister split; Leaking tank seal around the pump flange.

Check first, cheapest first:

1. Refit the fuel cap firmly, clear the code and drive for a few days — a surprising share of these are the cap
2. Inspect the visible EVAP hoses for cracks and loose clamps
3. Command the purge valve with a scanner and listen for it clicking
4. Smoke-test the system if the simple checks find nothing — a small leak is very hard to see

Other documented meanings

Documented for P0460 without a manufacturer attached in our data:

• Fuel level sensor A circuit

Which one is yours

A generic OBD reader gives you the number, not which of these meanings your manufacturer assigned to it. To get to the specific one:

1. Use a brand-specific scanner — VCDS for VAG, INPA or ISTA for BMW, XENTRY for Mercedes, Forscan for Ford. It shows the manufacturer's own text rather than the generic one.
2. Read all stored codes together — the neighbouring ones usually point at which system is involved and narrow the list.
3. Check freeze-frame data: the RPM, temperature and load at the moment it triggered indicate which system was active.
4. If you have no brand scanner, tell me the make and model below and I will tell you which of these applies to your car.

Code family

P0xxx is a universal code defined by the SAE J2012 standard — it means the same thing on every car, regardless of brand.

Severity

Severity varies — misfire codes (P030X) are urgent, while evaporative codes (P044X) usually do not stop you driving.

That is what holds for P0460 in general. From here it depends on your engine — tell me which car it is and what it does, and I will give you the steps for it: real procedures, torque figures and diagrams instead of general advice.