
2012 Hyundai Elantra GLS 1.8L Poor Idle Quality, Surge, Misfire
This Elantra will misfire at idle in gear mostly when the ac is on. I can leave running at idle with ac and it will eventually throw misfire codes. I checked the plugs and coils on cylinder 1 and 4 and they look ok. I cant get it to misfire off idle. I che...
Summary posted 8/30/2021
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Message Closed w/Summary
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VIN | KMHDH4AE4C |
Engine | 1.8 L / 4 cyl / GAS |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection / Sfi |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Surge, Misfire |
Occurs | Hot, Idle |
Trouble Codes
P0301 | Cylinder 1 Misfire Detected |
P0304 | Cylinder 4 Misfire Detected |
Message Closed w/Summary
Vehicle Data
2012 Hyundai Elantra GLS
VIN | KMHDH4AE4C |
Engine | 1.8 L / 4 cyl / GAS |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection / Sfi |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Surge, Misfire |
Occurs | Hot, Idle |
Trouble Codes
P0301 | Cylinder 1 Misfire Detected |
P0304 | Cylinder 4 Misfire Detected |