Passing emissions with check engine light on?

[SHARKBITEATTACK]

Gotta get a smog test before I get a sticker. The check engine light is on and I went to the auto parts store and to my surprise a few things came up...

Code P0108 – MAF circuit

Code P0500 – MAP sensor

Code P1636 – Generator L –Terminal

Car is a 2000 firebird trans am. Any shot I pass? How about if I reset the codes? I miss OBD1 and no emissions testing

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[HILROD]

If the light is on you fail. If you reset it, it will come up as unready and you fail.

 

[Lord Tin Foilhat]

yep. get your shit fixed

 

[stock-t-bird]

I cleared my CEL while waiting in line, but code was stored in their files somehow..I still passed with no problem.good luck man

 

[HILROD]

You used to be able to do this. Now it's unready and you fail.

 

[stock-t-bird]

passed 14 days ago,code was listed on paperwork though..Markham location (Crook County)got lucky I guess

 

[HILROD]

What was the code?

 

[stock-t-bird]

96 T-bird 4.6,some Evap Press valve code..been on/off past 4years..no effect at all on daily driving

 

[HILROD]

Probably the gas cap. Does really make me wonder why it passed tho.

 

[stock-t-bird]

92k w/original exhaust & cats too,it should have failed honestly

 

[DJ]

I agree will HILROD about the gas cap. It could also be a small crack in the gas fill tube. Had an explorer that did that to me a few years ago. My pops just passed today a Durango with 160k never touched exhaust v8. I find the emissions part isn't hard to pass it's usually the small things that get you.

 

[Wrencher]

In 96 fords had a non-complaint joke of an evaporative monitoring system. EPA let it fly for the M/Y.
It only has a purge flow sensor, that fail continuously.
I'm sure the T-bird had set the code as pending failure. It needed another drive cycle to set it as a hard failure & turn the light on. The state's global OBD system will pull pending non SES lamp commanding codes also.
Then 2000 & previous year vehicles are allowed 2 readiness tests not set to pass.
(01 & up only one not set is allowed)
So I can see how it squeaked through.

As for the OP your going to have to have no SES lamp on command/no codes & all but 2 readiness tests set on a 2000 T/A.

Oh an in addition for the non GM vehicles, standard list of equipt emissions components with accompanying readiness tests must be active in the PCM.
These lists are easy to obtain for the state, hense why the integrated it into emission testing.

 

[SHARKBITEATTACK]

Well I passed! Reset the codes then took it to the Schaumburg facility!