Failed Smog again! I hate Cali when it comes to the Smog Nazi's

[killerrudy]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

Im just going to throw a gallon of denatured alocohol in on a 1/4 tank and run it again. That should get me thru!

 

[killerrudy]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

Well, lol! My luck remains to be sucky! Even with the denatured alcohol I failed. Actually I went from blowing HC 141 to 311 for the idle portion. Riddle me this batman! :-(

 

[SY2455]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

Having looked over my smog tests since I got the truck you can see the effects of the cat going bad. I have a few questions for you, With the parts that I'm using after each ?.

1. If the smog tech is doing the 2500rpm test 1st, How does he bring it down to do the Idle test ?

2. Does he just take his foot off the gas pedal and let it drop to the idle really fast ?

The reason I ask is, the smog tech that I have use for years said if you let the idle drop really quick it will cause a spike on these trucks. The spike is not much, but it is enough to fail the truck and you can see it on the testing machine. Alot of shops will use it to make money off the customer. He tests about 8 of these trucks every 2 years and I have been going to him since I got the truck.

3. Can you hear or pick up a slight miss while your engine is running ? Every now and then my truck does seem like it, but after looking into it it seem like every Syclone does it that is stock or close to it.

4. What brand and part # of sparkplug are you using ? I'm running NGK UR6IX Part #7348

5. What brand of cap and rotor are you using ? I'm using Standard Blue Streak cap and rotor for the brass ter.

6. What brand of plugwire are you using ? I have MSD 31849 and a MSD 6A Control Box.

I read your posting that the prior owner change the wires, It may be just me but, Don't trust anything the prior owner told you. The prior owner of my truck said that he had just done a complete tune-up on my truck. After I own it for all of 30 miles, I did a complete tune-up on it and found 5 of the plugs were the same ones that the truck was built with and 1 was a Autolite. The wires were the same ones that the truck was built with the burn marks to show it. The cap was the stock cap with a Standard Blue Streak Rotor.

7. What brand of gas are you using ? My truck seems like it runs best on Mobil or Chevron and really acts up if I try the other brands. Misses and just really runs bad on the other types.

8. Have you check the EGR and ports in the intake ? I found mine really dirty and clean them up when I got my truck.

9. What are you setting your fuel pressure at for testing ? My truck gets set at 34psi for testing only, but really likes 45-47psi for everyday running.

10. What is your idle rpm during testing? My smog tech bring the idle down to 900-925 rpm for the idle test slowly from the 2500rpm test.

I don't know if this helped you any but I will be testing my results as soon as I finish the work on it that I have started to do :tup:. The test is coming up :rant:and like you I have my opinions about this screw up state.

 

[It's just a six]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

Well, lol! My luck remains to be sucky! Even with the denatured alcohol I failed. Actually I went from blowing HC 141 to 311 for the idle portion. Riddle me this batman! :-(

Is that all you did?

Did you unplug the tan wire?

 

[SloGN]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

maybe you should try swapping in a hotter t-stat and maybe swap to the stock heat range plugs.


The cat needs the heat to help burn off the fuel.

What chip do you have. If it's a stock chip then it really must be set mechanically back to the way the chip was programed for it.

A cold air intake can affect it some. a bunch of little things can really add up when time to pass the smog test.


I kida wish i had a machine that i could use to find out how my sy and gn is actually doing and what changes really affect it the most.

 

[nello]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

do a couple of boost launches and then get that intercooler pump turned off!! The truck needs to be HOT. Keep the truck keep running while the smog guy gets his act together. Others may have different advice, this is just what has worked for me... good luck bro.

 

[Mephisto]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

i've heard about unhooking the tan wire trick as well... with results.

i've also heard about draining some of the coolant to get the engine good and hot

using 100+ octane

and like earlier stated... rage on the truck right before you get there... do a few passes by the shop to make sure no one is ahead of you in line.

whats stupid is that everyone knows a crooked smog guy and theres all these tricks to beat the machine... so why do they bother??? this is an exceptional pain in the ass for those of us who put less that 3k miles a year on the truck. I still think they should add a "show car" or "collector car" clause to the smog laws, so its not necessary if you don't drive a certain amount of miles a year.

this is just another bullshit thing conjured up by the gov't to appease the greenpeace freaks, create jobs, and annoy everyone.

in the end it's just like the IRS... UNNECESSARY!!!!!!!!!!!!!

 

[killerrudy]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

1. If the smog tech is doing the 2500rpm test 1st, How does he bring it down to do the Idle test ? He just takes his foot off the gas and lets it drop.

2. Does he just take his foot off the gas pedal and let it drop to the idle really fast ? See, above

3. Can you hear or pick up a slight miss while your engine is running ? Yeah I can. B] Every now and then my truck does seem like it, but after looking into it it seem like every Syclone does it that is stock or close to it.

4. What brand and part # of sparkplug are you using ? I have autolite's in there now, but I ordered UR6's that will go in tomorrow.[/

5. What brand of cap and rotor are you using ? I just have a standard blue cap. Replaced the cap/button 10k miles ago

6. What brand of plugwire are you using ? I think they are magnacor wires(8mm). They look physicly good(No burns or cracks) I have MSD 31849 and a MSD 6A Control Box.

7. What brand of gas are you using ? Just Circle K. Rarely Mobil

8. Have you check the EGR and ports in the intake ? I haven't checked it.

9. What are you setting your fuel pressure at for testing ? I set it to 43 and tried turning it down to 30 for one of the tests. Didn't make a difference.

10. What is your idle rpm during testing? My it usually is around 675-750 for idle

I don't know if this helped you any but I will be testing my results as soon as I finish the work on it that I have started to do :tup:. The test is coming up :rant:and like you I have my opinions about this screw up state.

I also put on a new cat that is much larger bodied that the previous one. Hope this flushes out a possibility

 

[killerrudy]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

Finally passed. Went to a guy that did the test off line so it wouldn't send info to the state. Found out that if I did the idle at 900 instead of 750 it would go super clean ended up getting my HC's down to 10 from the 330 I blew last time. Glad to get this over with.

 

[SY2455]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

Congrat on passing. Did he bring the idle down slow this time or just let it drop again?

The reason I ask is, In every case that the idle drop fast on the trucks that I have seen, failed because of the temporary rich fuel / air ratio that occurs from rapid closing of the throttle. It did not matter on the rpm of the test. The smog testing equipment was that sensitive and the condition would only last about 15 sec, but that was enough to fail the idle test when it was average at the end of testing because of the machine.

 

[killerrudy]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

He brought it down slow like you had stated earlier. I wanted to try anything and everything. Dropped it real slow down and held it around 900 for the idle. Did great. Happy guy now!

 

[just_a_6]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

I have used the Alky myself with great success...

Unpluging the tan wire & or retarding the timing works everytime .

Denatured alky in the gas tank helps a lot also.

You can raise the idle to 1000 rpm also, which helps smooth out the idle & less surging.

 

[BY BY C5]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

Hi guys I also have just failed the CA smog on my sy .HC were over the limit. Is there a change that and that will do it answer, or is it a adjust this replace that. also I have just installed a new cat NOT high flow ,plugs , cap and new leads. I have just filled the gas tank with hi oct pump gas, the engine oil is old but has low miles on it also I noticed the smog guy did not disconnect the brown wire to timing (inside of cab passenger side at feet) the truck was hot , any info would be great thanks

 

[jabberwalk]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

Man- I am glad mine is staying registered in Tennessee!

 

[It's just a six]

Re: Failed Smog again! I hate Cali when it comes to the Smog Nazi's

Put 1 gallon of denatured alcohol for approx 10 gallons of fuel.
Pull the tan wire.Smog guys are not supposed to pull this wire,you are & it will give you a check engine light,put a business card over the light to cover it up)

Set your idle up to aprrox 1000 RPM in park, idle tork screw located @ the throttle body

Make sure the smog guy runs the engine to 2500 rpm for 5 minutes before testing.(lighting off the cat)
195 thermostat.

You can tell the smog guy to slowly bring down the engine RPMs from the 2500 rpm check,because our engines have a problem when letting off the pedal quickly & rpm surges a bit.
Hope tis helps.