Smog & Emissions
EVAP Leak Repair & Smoke Testing
Smoke testing finds the leak instead of guessing at parts.
EVAP codes — P0442, P0455, P0456 and friends — mean the fuel vapor system is leaking. The culprit ranges from a $12 gas cap to a cracked charcoal canister, a stuck purge valve or a rotted vent hose.
We introduce low-pressure smoke into the sealed system and watch where it escapes. That turns an open-ended code into an exact part and a firm quote.
What's included
EVAP Leak Repair at our Murrieta shop
- Professional EVAP smoke testing
- Gas cap, purge and vent valve testing
- Charcoal canister and hose replacement
- Fuel tank and filler neck inspection
- Monitor drive cycle and smog retest
Where to find us
Murrieta Smog Star — 26500 Jefferson Ave, Unit D, Murrieta, CA 92562. Serving Murrieta, Temecula, Wildomar, Menifee and Lake Elsinore.
Questions
Straight answers
Will an EVAP code fail smog?
Yes, if the light is on or the EVAP monitor is incomplete.
Could it just be the gas cap?
Sometimes — and smoke testing tells us in minutes instead of parts-swapping.
Do you smell fuel with an EVAP leak?
Occasionally, but many leaks are vapor-only and produce no smell at all.
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Get a straight answer on your vehicle.
Tell us what it's doing. We'll tell you what it takes — in writing, before any work starts.