Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Evaporative Emission System Leak Test
2006 Mazda B2300 L4-2.3L VIN DSECTION Evaporative Emission System Leak Test
EVAPORATIVE EMISSION SYSTEM LEAK TEST
CAUTION: The evaporative emission system must not be pressurized to more than 3.48 kPa (14 in/H2O) or damage to the evaporative emission system may occur.
1. Connect Evaporative Emission System Tester 134-01049 or equivalent at the evaporative emission test port.
2. Access Output Test Mode using WDS or equivalent tester. See ON-BOARD DIAGNOSTIC TESTS.
3. Select EVAPCV PID.
4. Select ALL OFF mode and press START to close the canister vent solenoid.
NOTE: Output Test Mode will default to its normal state after 10 minutes, after the vehicle is started or after cycling the key OFF then ON.
5. Follow the tester instruction:
- If the system passed leak test, no leak exists.
- If the system failed leak test, perform. See PINPOINT TEST 10: FUEL LINE PRESSURE/FUEL PRESSURE HOLD INSPECTION.
NOTE: The leak tester detects smaller leak than minimum requirement in the PCM. Drive cycle procedure should be final confirmation method.
CAUTION: The evaporative emission system must not be pressurized to more than 3.48 kPa (14 in/H2O) or damage to the evaporative emission system may occur.
1. Connect Evaporative Emission System Tester 134-01049 or equivalent at the evaporative emission test port.
2. Access Output Test Mode using WDS or equivalent tester. See ON-BOARD DIAGNOSTIC TESTS.
3. Select EVAPCV PID.
4. Select ALL OFF mode and press START to close the canister vent solenoid.
NOTE: Output Test Mode will default to its normal state after 10 minutes, after the vehicle is started or after cycling the key OFF then ON.
5. Follow the tester instruction:
- If the system passed leak test, no leak exists.
- If the system failed leak test, perform. See PINPOINT TEST 10: FUEL LINE PRESSURE/FUEL PRESSURE HOLD INSPECTION.
NOTE: The leak tester detects smaller leak than minimum requirement in the PCM. Drive cycle procedure should be final confirmation method.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.