EVAP Leak Monitor Pinched Hose Detected

What this code means

The PCM EVAP leak detection monitor has found a restriction consistent with a pinched or kinked hose in the evaporative emission control system. The system cannot build or release vacuum at the expected rate.

Symptoms

• Check Engine Light
• Possible fuel odor
• Failed emissions test

Common causes

• Kinked or crushed EVAP hose
• Collapsed EVAP hose from heat damage
• Blockage in charcoal canister
• EVAP vent valve stuck
• Routing error during previous repair

Diagnostic steps

1. Visually inspect all EVAP hoses for kinks, pinches, or collapse
2. Check EVAP hose routing against factory specifications
3. Inspect charcoal canister for blockage
4. Test EVAP vent valve operation
5. Smoke test EVAP system for restrictions

Repair notes

Locate and replace the pinched or kinked EVAP hose; verify all hose routing is correct.

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