#Evap system monitor hyundai sonata drivers#
#Evap system monitor hyundai sonata series#

Most smog inspection stations will tell you over the phone. It’s not permissible for most cars, but there are a few older cars where California has made an exception. Can I pass CA smog with catalyst monitor not readyĪs of this writing, maybe. For instance, if you only drive around town, the catalyst monitor will never run, at least not on any car I know of. By conditions I mean things like vehicle speed, the amount of throttle, and the combination of the two over time. The monitor requires certain conditions to run. There isn’t a magical number of miles that will set your converter monitor to ready. How many miles to drive before smog check We’ll talk more about that later, but let’s start with the assumption that your car is OK, which is the case almost all of the time. This is very important to know if the catalyst monitor just plain won’t run, no matter how much you drive. In the case of the catalyst monitor, the O2 sensors are the key sensors. All monitors, including the catalyst monitor, are dependents on sensors.

#Evap system monitor hyundai sonata series#

The catalyst monitor is a series of tests the car’s computer (ECM) does to determine if the catalytic converter is working normally. It’s extremely rare that there’s a problem with the car. The catalyst drive pattern is almost always something you can do yourself while driving somewhere you needed to go anyway. If you’re ready to give up, we’ll do it for you, and if we can’t get it to run, we’ll find out why it’s not running and fix the problem(s), but we charge. The monitor for the catalytic converter is usually one of the most difficult to get to run. You think, “I’ve already driven the car!” Wash, rinse, repeat - until you have no hair left. The guy says you’ve got to drive some more. The guy says you’ve got to drive around some more. Since you’re reading this, I’m guessing that you’ve learned what a monitor is, and are pretty frustrated.

#Evap system monitor hyundai sonata drivers#

“Not so fast”, says the state, “We’re also going to check to see if the monitors are complete.”Ī few years ago, most drivers (and a few mechanics) had no idea what a monitor is. “Ah ha!”, says the crafty consumer, “I’ll just disconnect the battery to clear codes and then go pass the smog test!” It’s simple test and has reduced the price of smog testing. If the check engine light is on, the car fails. Instead, we check to see if the vehicle’s computer has found any problems that might cause increased emissions during the smog inspection.

How do you get a catalyst monitor to run? Why do you need it to run? Well, in California all vehicles model year 2000 and newer don’t require a tailpipe emissions test.