need to know how to reset the comp after turning off check engine lite

Asked by Jan 29, 2014 at 12:39 AM about the 2000 Hyundai Sonata GLS

Question type: Maintenance & Repair

i had to replace 02 sensors then turned off check engine lite only when i took it in for inspection it failed comp didnt read anything something about a drive cycle its a 2000 sonata gls 103700 mils 6 cyl

1 Answer

65,935

Once the repairs are made and the computer is cleared the readiness monitors must reset before it will pass an emissions inspection. As you drive the computer runs tests on the different emissions systems (EGR, EVAP, Oxygen Sensors, etc.) Once the computer decides that the systems have passed enough diagnostic tests the readiness monitor for that system shows "ready". To get these to set there is a specific "drive cycle", too lengthy to outline here, that can be done to get the readiness monitors to set right away. What you can do that is much easier is keep your gas tank between 3/4 and 1/4 full. No more and no less! Then just drive normally for about one week. During this time the readiness monitors will set. If it's cold where you're at the readiness monitor for the EVAP system probably won't set. But that's ok. Since your vehicle is a 2000 model it will pass if all but 2 readiness monitors are set. 2001 models and forward must have at least all but one set. HTH. -Jim

Your Answer

Add photo

Related Questions

Search Hyundai Sonata Questions

Hyundai Sonata Experts

#1 toDumbToNotKnow
toDumbToNotKnow
Reputation 1,470
#2 Tom Demyan
Tom Demyan
Reputation 1,280
#3 dandyoun
dandyoun
Reputation 1,030
View All

Related Models For Sale

Used Honda Accord
802 Great Deals out of 84,448 listings starting at $988
Used Hyundai Elantra
561 Great Deals out of 52,031 listings starting at $1,499
Used Toyota Camry
1,003 Great Deals out of 90,532 listings starting at $650
Used Kia Optima
461 Great Deals out of 29,899 listings starting at $1,995
Used Nissan Altima
1,005 Great Deals out of 81,095 listings starting at $1,200
Used Honda Civic
631 Great Deals out of 88,620 listings starting at $995
Used Chevrolet Malibu
907 Great Deals out of 79,544 listings starting at $1,500
Used Toyota Corolla
770 Great Deals out of 73,085 listings starting at $1,260
Used Nissan Maxima
314 Great Deals out of 25,099 listings starting at $999
Used Hyundai Santa Fe
288 Great Deals out of 20,072 listings starting at $2,275
Used Chevrolet Impala
577 Great Deals out of 31,558 listings starting at $799

Used Cars For Sale

2014 Hyundai Sonata GLS For Sale
100 Great Deals out of 2,785 listings starting at $7,888
2013 Hyundai Sonata GLS For Sale
64 Great Deals out of 2,153 listings starting at $6,242

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.