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.
EVAP System Monitoring: Leakage Detection: Notes
Kia applies an improved leakage detection module (heated type) in 2001 model year of Sephia and Spectra.
Using the heated DM-TL (Diagnostic Module Tank Leakage) can completely eliminate the humidity influence. So, the leakage detection is never stopped caused by the current fluctuation (due to dew effects at extreme high humidity).
The heating element is inserted into pump hosing. Diagnosis of the heater of DM-TL is checked by circuit malfunction.
The heated DM-TL (Diagnostic Module Tank Leakage) is used to monitor the evaporative system for leaks.
The diagnostic module consists of an air filter, an heating element, an electrical driven air pump, a change-over valve and a 0.02 inch orifice for reference measurement as shown in the following figure.
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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.
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