after resetting the ecu and clearing the codes how long or how

>>14698401
I've always heard you have to drive ~100 miles to clear it. May be different for each vehicle though.

>>14698401
Depending on what it is and whats causing the problem, driving it immediately will almost always cause the CEL to light up.

>>14698411
already fixed the problem bro
replaced upstream o2 sensor

no engine light now
but the motherfucker at autozone told me you gotta wait a while after clearing the ecu to smog or they will fail it when they hook it up to the machine

>>14698421
I heard a week for my state (Maryland)

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aight ill drive it normally for a week and see what happens

thx bros

>>14698443
>>14698464
I live in california btw
so fuck me anyway
laws here are strict

>clear codes
>drive like 10 minutes
>check system
>everything's all good

>>14698479
California is actually one of the least restrictive states.

>>14698479
I never failed smog in CA. Wouldn't replace the O2 sensor, just reset the ECU and go straight to the shop. Didn't work out so well after I moved to Texas.

>>14698401
So the rule for my Ferd was you need between 1/4 and 3/4 of a tank of gas and it takes at least 30mi, maybe closer to 50mi to reset everything where the systems come up as "Ready" when they plug into the OBDII port. This was from experience and info from a lifetime Ferd tech. Could be sligjtly different for Nissan.

>>14701192
He is right but you can look up " nissan drive-cycle" it will have the criteria to complete you monitors and its usually the catalyst &heated o2 that take the longest and requires a cold start

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>>14700983
>California is actually one of the least restrictive states

>>14698401
30 mins at highway speeds

>>14698421
He's right. Most cars do this so that you can't just clear the codes and then get a smog inspection (cause then you could cheat).

Wow.

For my Chevy van its ~10miles

Never owned anything else obdII

Rent a scanner from autozone and check the readiness monitors. That will let you know if they're set or not. Also your can probably look up on Google what you have to do to set the readiness monitors so you don't have to wait

>>14700983
That so?

You've clearly never been to the midwest. I've owned 5 cars, purchased from all over everywhere. Never had a smog check, never had a vehicle inspection, never had a roadworthiness test. There is fuck-all regulation of vehicles in Minnesota, and we're the socialists of the upper midwest.

I've had friends run straight headers for months, no repercussions. When I say fuck-all, I mean fuck-all. Cops don't even bother opening your hood around here; if you're doing something stupid enough to get in real trouble, they'll just impound your car, but as long as you're paying your licensing taxes, you're good to go. Only vehicle-law related stops I've ever encountered were 1) brake light failure, and 2) tint too dark.

>california is actually one of the least restrictive states

lol do people actually believe this?

Depends on your state's rules. Most of the system test will run right away but some are delayed. The last ones to run are usually the catalytic converter test, and the evaporation system test. Any test that hasn't run since the last time your CEL was cleared will appear as a "not ready".

In my state, Illinois, you can have two "not ready" on a 1996 to 2000 vehicle and still pass emissions provided the CEL is off.

On a 2001 and up you're only allowed one "not ready"

>>14698479

I passed smog in CA at a test only with a busted cat on my 98 V8 Cherokee. Amazing since the exhaust stinks