← Back to list

2001 Hyundai Accent P1402 Code: Causes and Solutions - Is Fuel Tank Diagnostic Module Replacement Necessary?

Model: 2001 Hyundai Accent Fault Code: P1402 Posted: 2015-12-28 17:29

Does a P1402 diagnostic code on a 2001 Hyundai Accent indicate that the fuel tank diagnostic module needs to be replaced? This code is known to trigger in North American models, particularly those with a 1.6L engine. The part for the module can be expensive—so are there other possible causes of this malfunction? The P1402 code typically relates to issues within the evaporative emission (EVAP) system, such as a faulty vent valve or electrical faults in the fuel tank system. While the diagnostic module itself may need attention, it's important to first rule out simpler causes like stuck valves, wiring problems, or sensor malfunctions before concluding that replacement is necessary. If you're considering purchasing a 2001 Hyundai Accent with around 126,000 miles, it's advisable to have the vehicle professionally scanned for all diagnostic trouble codes (DTCs) prior to purchase. This helps identify any existing issues—such as EVAP system faults or electrical problems—that could affect performance or reliability.

Related fault codes
P1402
Comments (4)
Anonymous 2015-12-29 08:36

This is a 2001 Hyundai Accent — North American model? What engine type? Confirming it's P1402, and no other diagnostic codes are present. The fuel tank diagnostic module can be tested; what might be causing the code? Possible causes include electrical faults or a sticking vent valve.

Anonymous 2015-12-29 09:37

Hi Kev — P1402 is the only code appearing on my vehicle. It's equipped with a 1.6L engine. Yes, it's an American-market model. Thanks for your prompt response!

Anonymous 2016-11-28 14:45

We're currently evaluating a 2001 Hyundai Accent GS with approximately 126,000 miles. Recently, the car has run smoothly — only minor front-end noise, no major issues. However, we've noticed windshield wiper fluid leaks and a non-functional digital clock (fuses checked). Any advice on these small problems would be appreciated. Last night, while refueling at a gas station, the pump repeatedly shut off every 10–20 seconds — it took me a long time to fill the tank. This occurred at two different stations. After driving around for errands, the check engine light turned on and has remained on since. The light is not blinking.

Anonymous 2016-11-28 15:22

Have you had the vehicle scanned for diagnostic codes? It's highly recommended to have a professional technician inspect the system before purchase — they can identify all existing codes, assess the check engine light behavior, and estimate repair costs for issues like clock malfunctions or wiper fluid leaks. A slow fuel fill is often caused by an EVAP vent valve failure. This issue is common in older Hyundai Accents. Local inspection services are usually affordable and worth considering.