Matching You with a Pre-Screened Smog Check Center You will Love
Free Online Smog Check Diagnosis
$500 Free Consumer Repair Assistance
Failed Emissions Test
How to Pass the Test
Who Else Wants To Pass the Smog Check
Need Registration Renewal?
    Forum > Consumer Assistance > Question

Join the community and post your questions. Ask-A-Tech right now!

Consumer Assistance

2001 Dodge Ram 1500 5.2L Oxygen Sensor Heater Monitor and EVAP failed.

Smog tested locally and at nearest Refere Victor Valley college. Vehicle emissions passes both Idle and 2500 rpm test, visual inspection pass, but fails functional check due to 02 sensor heater monitor and EVAP system.

I don't get why I failed the smog check if emissions passes, which I thought was the purpose, not whether the ODB works or not.


The smog check program wants to make sure the emission monitors are working properly. It is important for your Dodge Ram to self-test it's OBD II (On Board Diagnostics) System Generation Two, at programmed intervals. Unfortunately 2001 model and newer vehicles are (since January 2010) only allowed to have one (1) emission monitor "Not Ready".

posted by SmogTips Support 06-22-2011 10:36 AM

Related questions and answers you might find useful:

1999 ford F-150 by patrick on 01-20-2022 09:06 AM

Mini Cooper DMV Registration Due in 5 Day Won't Pass Smog by anne on 10-06-2021 02:32 PM

2001 Jeep Grand Cherokee Laredo with K&N Air Filter by David on 09-30-2021 11:34 AM

1995 BMW M3 Gross Polluter High HC & NO @ 15MPH by Jared on 09-27-2021 08:56 AM

Missing Emission Sticker Caused Smog Check Failure? by Michael on 09-24-2021 04:05 AM