After resetting the computer, and 300 miles later, still get 5

computer re-calibrate in what is called a trip. One trip consist of starting car when engine is completely cooled off, driving until engine is at normal operating temp(temp gauge), turn off let engine completely cool again. Most cars take 3-5 "trips" to verify changes made. So i would play it safe and call it "5 Trips"

Clearing Codes, clears all data, then all the emission
monitors have to run again, or you won't be excepted
to inspection

Clearing codes & data,has nothing to do with diagnosing
why you got the fault codes & fixing the problems

How would clearing a dash light help pass inspection?

Before you got down the street two houses, the light would
be back,the car has a failed system ,thus the light on the
dash after the motor is started.

You cleared all data,now a shop can't even work on it
You removed all vehicle history & codes

Flat bed it to a shop & they will make the repairs you neglected
to do, while trying to get hundred miles before the parameters
on a failed system went out of range & the dash light came back

Need to study OBD 2 Systems on the internet & leave the vehicle
work to the pros

The system has to see a wide range of conditions before a smog test can be done. On most brands you have to drive at least 50 miles, at various speeds including stop and go, let it idle for 5 - 10 minutes, and run at freeway speed for at least 25 miles. It also has to reach normal operating temp of 195 degrees.

Find someone with "VAGcom" or VCDS cable and software.

this can take sometimes awhile here are some tricks
drive car 48-52 mph for about 10 miles pull over and idle
for 5 minutes and drive again keep fuel level between 1/4
and 1/2 as best as possible and do not warm up car too
long in the Am just a minute or 2 then drive gently good luck

YOU WILL HAVE TO DRIVE 100 MILES FOR COMPUTER IN CAR TO HAVE ENOUGH INFO FOR INSPECTION, I JUST PUT IN A NEW BATTERY AND WENT FOR INSPECTION, ONLY 20 MILES ON , WOULD NOT PASS, WENT BACK A WEEK LATER AND HAD TO PAY AGAIN!!! BUT PASSED

Check the relay relay maybe latched on. See if there is an identical relay in the box and swap them if problem goes away replace relay.

Hello, have you tried to unhook the negative side of the battery for about 10 minutes and then go from there . It should reset the computer completely .

i took the battery out of an o7 Eqinox to check the washer pump. when i put the battery back in, the car won't start & now the key is stuck in the ignition. i took the battery to be tested & it is good.

some cars will take longer y would you reset your computer before an inspection --the longest component to reset is the catalytic converter seen some cars as long as 170 miles-if u reset because of a code the code may come back and show up as fault on computer also--- if it hadnt been repaired