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Hyundai P0303 – Meaning, Causes, Symptoms, & Fixes

Engine malfunction warning light control in car dashboard. 3D rendered illustration. Close up view.

https://www.youtube.com/watch?v=pedGttpvPtg&ab_channel=FIXD What Does Hyundai Code P0303 Mean? P0303 definition: Cylinder 3 misfire detected. Issue Severity: SEVERE – Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. Diagnosis: A cylinder 3 misfire can be caused by anything from faulty spark plugs to low engine compression. Some […]

Hyundai P0128 – Meaning, Causes, Symptoms, & Fixes

Engine malfunction warning light control in car dashboard. 3D rendered illustration. Close up view.

https://www.youtube.com/watch?v=VIkF3Dr3dpE&ab_channel=FIXD What Does Code P0128 Mean? Hyundai P0128 definition: Coolant Thermostat Temperature Below Regulating Temperature Issue Severity: LOW– Continued driving for a short period of time is okay. Repair Urgency:  Get this code fixed withing the next month to prevent the potential for overheating.  Diagnosis: It is important to complete the entire diagnostic process when […]

Hyundai P0456 – Meaning, Causes, Symptoms, & Fixes

P0456 evaporative emission control system small leak

https://www.youtube.com/watch?v=ZyGFNRMcw7U&ab_channel=FIXD What Does Hyundai Code P0456 Mean? Hyundai P0456 definition: Evaporative emission control system leak (small). Issue Severity: LOW – Continued driving for a short period of time is okay Repair Urgency: Get this fixed within the next month to prevent drivability problems and excessive fuel consumption. Diagnosis: It is unlikely the driver will notice […]

Hyundai P0171 – Meaning, Causes, Symptoms, & Fixes

P0171 system too lean bank 1

https://www.youtube.com/watch?v=1yAD0xUIekc&list=PLbKkKJSiLhJuDkLxxP8ormFbdrL6sR4lp&index=13&ab_channel=FIXD What Does Code P0171 Mean for Your Hyundai? P0171 definition: Bank 1 has too much air or not enough fuel Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency:  Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. Diagnosis: […]

Hyundai P0420 – Meaning, Causes, Symptoms, & Fixes

Click here to learn how to fix p0420 yourself

What Does Hyundai Code P0420 Mean? Hyundai P0420 definition: Catalyst system efficiency below threshold (Bank 1) Issue Severity: MODERATE – Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid further damage to your emission system and possible engine damage. Diagnosis: The most common cause of Hyundai P0420 […]

Hyundai P0300 – Meaning, Causes, Symptoms, & Fixes

Engine malfunction warning light control in car dashboard. 3D rendered illustration. Close up view.

https://www.youtube.com/watch?v=Pbz9wDtMuoU&ab_channel=FIXD What Does Hyundai P0300 Mean? P0300 definition: Random, Multiple Misfire Detected Issue Severity: SEVERE – Stop driving immediately Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions Diagnosis: A multiple misfire can be caused by anything from faulty spark plugs to low engine compression. There are many […]