I'm trying to get my 89 Iroc to pass smog its failing with Hydrocarbons and it sucks I have to keep parking my car anybody with knowledge of someone I can talk to or any suggestions let me know please

 

Any mods? Recent tune up parts? Normally a new cat and egr valve can solve your problem. But that's only if its a simple issue. Your best bet would be to have it diagnosed by a certified tech.

 

No mods added the only thing i havent replaced is the catatlyic converter. Ive done a full tune up.

 

high hydrocarbons is unburnt fuel. sure you got a good tuneup on there? I see your in the bay. I am sure thier are some good Smog test and repair stations that can get you going.

 

Yeah tune up pretty recent got a new fuel pump that's the most recent repair there are a lot of smog shops but I need a good one. Car just been parked outside the house for the time being which sucks.

 

Dont hear/feel the car misfiring or anything? car seems to run good? If you wanna go to Rocklin he does smog and repairs. Rocklin Automotive the owner is a member here goes by the name 3rdbird aka Marc. Check in with him. Other than that its hard to say.

 

Yeah I heard about Marc in Rocklin I called up there he's on Vacation till Friday so im going to try to call him back than. It seems to be runnin good but never know with these old cars any little thing can mess them up.

 

I would call over to a guy named Bennie. He is also here in this forum. He is a certified smog tech and owns his own repair shop in Elk Grove, a bit closer for you than goin to Rocklin, although Marc does good work also. His number is 916.214.7886. Call both of them and see if they can lead u in the right direction to get it taken care of. Let us know what they say... Good luck

 

@Copchaser i tried that number but i dont think thats the right number.

 

Copchaser has been smelling too many diesel fumes and got the numbers transposed

Here is Bennie's info:

AutoStart
9291 Bendel Place
Suite 120
Elk Grove, California 95624
916-714-2886
www.autostartsmog.com

 

looks like he did do just that.

 

ur right! Was a very long day yesterday. I apologize for giving you.the wrong info. I'm glad my fellow nor cal boys got my back....

 

I spoke to Tha89rocfast today. HC's are measured in PPM (parts per million). There is also CO, and Nox to take into consideration too! It all plays into the overall test.

We have set an appt for ya next thursday. We'll get ya fixed asap.

Bennie is good too, but according to Del, "quality takes time".

At Rocklin Automotive, you're a priority as soon as you arrive, and yes I know you're coming in from the Bay Area.

HC's are basically unburned fuel. I would double check the "tune up" especially if it has a "newer" cat converter. Otherwise we'll see ya Thursday.

 

someone else said that! Get her going good there Marc

 

So far 2 people agree HC's are unburned fuel, and the tune should be rechecked.

Might also want to perform a HC/CO cranking test, what do you think Undercover89??

http://www.advancedautomotivetrainin...Flowcharts.pdf

 

My father and I do not have a smog license so I am not allowed to work on vehicles that have failed emissions testing

Hope ya get her figured out and running good and smog passable Marc

 

Yeah I agree with you guys both im just trying to get to the bottom of it so I can put some some rubber to the pavement before the summer is over. Riding on two wheels everyday is getting tiring.

 

WHAT! I love riding on 2 wheels

 

2 wheels powered by an engine wouldnt be so bad. bicycling daily would get old for sure

 

Yeah motorcycles are awesome I love it no traffic on the freeway and gas is easy on the pockets. I don't think I could bike everyday maybe at the gym not commuting though. Hopefully my car will be back to making noise.

 

I failed one time by a large margin. After a little poking around, found that the vacuum line to the EGR valve had come off. Plugged it back in and passed well below the average #'s. Something to check, easily.

Will

 

Well guys update on my car still sitting in front of my house but good im off work tomorrow and headed to Roclin tomorrow to see Marc and hopefully get my car back running cross your fingers for me its been too long I miss my muscle car.

 

On a side note rode out to Rocklin Automotive today and it was a nice ride but very long glad I had tunes to listen too. Hopefully ill be getting my green tags today so I don't have to worry about the CHP on the way back to the bay.

 

Did they fined out what's wrong and the 89 up camaro are known for bad injectors

 

I need to do a compression test because I have a misfire and need a new cat. So im still riding illegal.

 

misfire=unburnt fuel....unburnt fuel=ruin catalytic converter

 

Update on my car after looking over my car this weekend I find a busted vacuum line and also a broken spark plug wire I'm glad I didn't just start dumping money in the car in other areas. So I went ahead replaced the wires, cap and rotor and coil all MSD. The car is running so smooth and putting out the power I expect back to the smog shop next day off.

 

Just make sure the car is warm and the cat is hot

 

Well back to the drawing board after driving my car around drives good got it warm but it still didnt pass smog. This is getting annoying : (

 

What did it failed for? Both speed? Give us more info then maybe we can chime in. Internet diagnosis is 100% guaranteed! LOL

 

seriously. what gas did it fail for. all of them? what speed? those are variables the smog smarties need to be able to help you.

 

Ill post all the numbers when I get home.

 

Okay So I scan my smog results onto here so everyone can see them and chime in on them. Also I did a check on my EGR valve today it isn't holding 10 psi of pressure when I start the car. Also its leaking as I put air in while its running. Time for a new EGR you guys I think.

 

I don't think the tpi egr works like that.

 

The Egr is part of the emissions system of the car and it's not working at all? Theres no change in idle when you add pressure to the valve. Thats how my manual describes the egr and the problems it causr if not working. Rough idle, hesitation, stalling etc.

 

You have to test it with the motor off and a vacuum pump like a mity vac and see if it holds vacuum,or with it running push up on the egr diafram if the ldle changes the egr is maybe good.

 

I tested it with a mityvac this morning that's why Im stating its bad its not changing the idle when adding pressure when running.

 

Check the egr by pushing up on the egr diafram

 

It failed HC, CO and NOx. I suggest get it dignose at a smog shop or a shop that has smog machine.

 

It needs a converter, high #'s across the board. the NOx didnt fail by much. A new good cat should take care of all that. well take care of it enough to pass. but it may still have a problem.

 

I am glad I don't have to get my car smogged here while I live here! Thank god it's registered in NJ! They do have smog laws there but since I'm not there anymore I don't have to follow the rules!