1999 Hyundai Sonata GLS 2.5L Excessive Emissions
This vehicle is failing for nox on california asm [...] has only 52,000 miles and runs perfectly.o2 sensors working good,no egr on this [...] stumped at this point,tech hotline i use thinks possible cat problem,but they are not [...] rushed out to local exhaus...
FIX posted 4/30/2004
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Vehicle Data1999 Hyundai Sonata GLS
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Message Closed w/FIX
Vehicle Data
1999 Hyundai Sonata GLS
VIN | KMHWF25V8X |
Engine | 2.5 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SEFI |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions |
Occurs | Always, Under Load |
Misc. | Sedan |