Originally Posted By: nthach
Originally Posted By: BlownF150
Can always buy a code scanner that has emissions functions check. My Innova 3130 has that function...red, yellow, green light to let you know if anything is a potential problem.
Not that I really care, don't do emissions testing down here...
2004 and newer Hondas have a cool little easter egg in them - turn the key to ON but don't start the engine - KOEO. Wait 20 seconds or so and watch the CEL. If it goes out, readiness codes have been set. If the CEL blinks 5 times and it does not turn back on with the engine running, that means readiness codes are not set and it's probably a good time to take the car for a stroll to run at least 1 of the monitors.
That is cool. Saw an infomercial for something called CarMD that reads codes (but doesn't erase them) and does the LED red yellow green thing. They were going on and on about how you can check used cars out with this.
1) dealer could have put a new battery in or let the old one run dead
2) doesn't check the undercarriage (DUH!)
3) many states you need a fresh smog/inspection anyway, or the car is guaranteed to pass within a few days.