car wont pass smog

[95firebird3.4]

ok well my car passed at 25 miles per hour but failed at 15. it has to much NO i replaced the cat which is why i was told the car didnt pass the first time. i changed the oil and did a full tune up what should i do now?

[bigbrian442]

Re: car wont pass smog

Make sure the EGR works.

[95firebird3.4]

Re: car wont pass smog

how can i do that? i dont have a scanner

[Mighty Thor]

Re: car wont pass smog

Is this for CA emission?

Use Seafoam it will help. Also like he said, check your EGR.

[95firebird3.4]

Re: car wont pass smog

i had a shop to a carbon clean and its didnt help yes im in CA

[Mighty Thor]

Re: car wont pass smog

i had a shop to a carbon clean and its didnt help yes im in CA

I'm not familiar with the 3.4 engine but check you EGR valve. You may need to buy a new one.

Other than that did you already change you O2 sensors?

[95firebird3.4]

Re: car wont pass smog

i was told my car didnt have o2 sensors???? how do i check the egr valve?

[cantrip]

Re: car wont pass smog

i was told my car didnt have o2 sensors???? how do i check the egr valve?

didnt have 02 sensors? hahaha. dont all cars have them? hahaha

[Mighty Thor]

Re: car wont pass smog

Did the smog technician told you what you needed to do?

[PalmHarborBlkv6]

Re: car wont pass smog

Okay, this will knock your socks off: put 3 oz of pure Acetone in a filled camaro tank ...filled with regular gas...not ethanal ....it will also increase your gas mileage.
Read the posts of people who have done this:

http://www.wisebread.com/can-acetone...ur-gas-mileage


There are many personal examples of people getting great results and it turns out that
many commercially available branded products have a lot of Acetone in it.

[95firebird3.4]

Re: car wont pass smog

Did the smog technician told you what you needed to do?

he told me to take it to a repair shop. the car is running lean and that is whats making it fail so what could make the car run lean?

[bigbrian442]

Re: car wont pass smog

The O2 sensors being lazy will make the car run lean. Yes your car has them. No they don't always set a code when they go bad.

[95firebird3.4]

Re: car wont pass smog

ok well i replaced them and im only 50 points away from passing idk what to do now

[techsan23]

Re: car wont pass smog

did you change your fuel filter when you did your tune up? Id def try using an additive next time you fill up.

[95firebird3.4]

Re: car wont pass smog

did you change your fuel filter when you did your tune up? Id def try using an additive next time you fill up.

yes i did