WHATS THE ANSWER!!!!????? .........................

 

Not to be a dick but I now know the answer, and I will tell this, you will need a 5-gas analyzer. And yes the catalyst material must be hot, ~700F or hotter in order for the cat's to be properly lit off as we say in the industry. One way to ensure this, and please don't do this unless you absolutely have to, is try to get there when the line is short so it will be as hot as possible. Then go for a drive with the engine already warm, however, slightly drag the brakes in order to really load the engine. Someone may have a problem with this, however, I have taken several customers cars through the test station and this was neccessary. Thats not to say it is the proper way by no means, however I have seen it work. BTW, Doc should be here with the answer shortly.

-Ray

 

Hmm, you have to make it lean out.

a. Lower the fuel pressure by adjusting the FPR.

b. Short the O2 sensor.

c. Mess with the idle variable resistor thingamabob.

One of those would work I think.

 

I passed in FLA all the time. Get a 1 gallon jug of denatured alcohol (or methanol) from the paint store. (sherwin williams, homedepot etc) dump it in the tank the fill up half way on 87 octane.

Then Retard the hell out of the timing 10* or so. and get the cats hot on the way over. Leave it in 2nd and cruise at 5k+ rpm for a good 5 minutes. I usually retarded the timing even more in the parking lot. while waiting to take the test. Watch your coolant temps you can over heat easily now.

With your timing all out of wack U usually have to adjust your carb . I do this in the parking lot too. If your carb'd bring idle down to 800ish take your mixture a all the way down until the car starts to stumble a little. Leave it stumbleing.

Then go take your test!

With the FI cars after retarding the timing and using 87 octane and alcohol like above, I just opened up the VPC and leaned out the idle mixture until the car started to miss.

I always passed...

Good luck!

 

Well the final thing that has to be done if all the other items have been covered.
And remember this is a fuel injected, not carbed vehicle.
While it is on the 5-gas analyzer the tech has to remove the top cover of the Air Flow Meter and recalibrate it.

Why couldn't we have real adjustable air fuel mixtures like the older german cars?

 

There it is folks, the Guru has spoken.

 

Why did I want everyone to think about it?

I see alot of what I refer to as basic questions every day on this forum. Some from people that have been members for quite awhile. If the answers are always given to you then you will not become better at diagnosing. In order to learn, sometimes we must go thru the agony of the actual process ourselves.

 

Why are you messing with people doc?
So what you are saying is if anyone has a problem, they should try to figure out the problem instead of being bottle fed here?

I thought going thru the agony of the process meant we had to click on the search button to find the answer when noone helps after you asked a question here. No one told me that I had to physically do diagnosing. Screw that! I'm selling my car! LOL

 

number one RESPECT the DOC number 2 being able to figure out your own problems is KEY in owning these cars you might not always have a computer with the internet 100 KM away on the highway somewhere so you have to do it yourself thats the point.. if you cant do it yourself then use this but try it yourself first

 

Now heres a Lady to respect. She not only cooks(assuming) but can also install a Supercharger.

 

Thats what I said the VPC is the "Air flow meter". I win the prize! Jeez no respect for the new guy!

Although I think they guys at the smog station guys/gals would look at you funny if you wanted to adjust it during a test? I'd just mark where it was originally, then back it off until the car starts missing alittle. (lean)

 

Wow doc, is that a compliment or anti-feminism?
I'll take it as a compliment, but no, I can't cook to save my life. But I do own my company, and in my office I have a plasma tv and a bar with 2 beer taps. I get my meals delivered. And no, I have no idea why I just typed that. Damn it! Where are my damn pms pills!

All I know is that emissions sucks! My car will never pass, so in my case the right thing to do is not drive my vehicle. Yeah right!

I'm doing the wrong thing and registering my car in a part of town where there is currently no emission testing. I can't imagine what you guys have to go thru to get your cars to pass. Especially in California. And from what I understand, the emission laws are only going to get tougher.

Land of the free! (Only if your car passes emissions)

 

I'm glad I don't have emissions except for a visual and I have an SA.

 

Plasma tv and a bar, meals delivered. Can you adopt me?

They see the "Guy" when they need their cars to pass in Ca.

And in 2-4 years there may not be any emission free testing States.

 

Thanks Doc, learned something today.

Ray

 

Hey, do you know the limit for Las Vegas, Nevada? Or can you look it up? That would be sweet

 

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