so far i have failed smog 3 times $150 burnt

first test
15mph
(%co2 13.8)
(%o2 .7)
(HC {max 62} meas 176)
(co {max .45} meas .072)
(NO {max 356}meas 3096)
first test
(%co2 13.8)
(%o2 .7)
(HC {max 62} meas 176)
(co {max .45} meas .072)
(NO {max 356}meas 3096)

 

all cylinders are at about 135psi

 

If you have a new AFM on it, i wouldn`t try adjusting it. How old is the 02 sensor ?, I would recomend replacing it if its real old and has a lot of miles on it. Buy a Denso 02 sensor, Bosch 02 sensors don`t work well in toyota engines. You can get an 02 sensor
here www.densoproducts.com .

 

4got it also has good working o2 sensor off my other 93 4runner that i swapped to try and problem solve. the vafm on there was opened by me awhile ago and marked and returned back to factory spot. im probably going to try 2 clicks and see how it runs

 

if i go too lean will i burn a valve

 

this is from http://www.smogtips.com/failed-high-hydrocarbons-HC.cfm and it does not make sense because hc is "raw fuel"

Lean Fuel Mixture - Any condition which will cause unmetered air to enter the intake manifold, and ultimately the combustion chambers, will cause high hydrocarbons (HC). This condition is called a lean miss-fire. Such faults as vacuum leaks and gasket leaks will cause lean fuel/air mixtures. Broken, disconnected or misrouted vacuum hoses will do the same. It is also important to note that many engine components rely on engine vacuum for proper operation. If any of these components are defective, externally or internally, they may cause large vacuum leaks as well. A good example of such a component is your vehicle's power brake booster.

 

BUMP. has anyone used e85 to pass

 

I'm watching your thread because I too have emission woes. My NOx max last time was 1058. Now it's 740. My '88 measures 1031ppm.

Anyway, good luck to you.

 

i would say its the 02 sensor as well...
get a new one... they are expensive but you wont have to worry about it again...

 

the newer o2 sensor is out of my other 3vze. so its good.

going to put 1g e85 with 4g of gas. also i leaned out the vafm 2 clicks....... smoging today.

i kinda want to run the same setup with just gas/e85 mix to see if it passes because i have a camaro that would love a cam

 

so did it pass? im on the same boat with my mustang. taken it in twice and going in for the third this monday. dont you just love californias smog, gun and cell phone laws?

 

well u need to sell the mustang and get a chevy(=


tank was just on E added 2g of gas and 1g of e85

wow

15mph
(%co2 15.6)
(%o2 .0)
(HC {max 62} meas 1. )
(co {max .45} meas .000)
(NO {max 356}meas .000)

hhhahahah

the smog tecs were scratching there heads and asking were i got the cat and what i did to it and "wow most NEW cars dont get that low of a reading"



what i want to know is, how big of a cam can u put on my camaro now(=

 

holy crap im doing that for sure now. my neighbor ( hes into hopped up miatas, running 12.3 1/4 mile) he told me to run 1-2 gal of e85 in my tank as well. im doing that on monday fo sho!!!!!!
what year maro and how big you looking to go? whats done to the motor?

 

let me know how it goes

its a 98 ss m6 and its kinda stock. i would love a zo6 cam. ran 13.7 as is.

 

wow not bad stock! the zo6 cams are badass in the ss camaros!!! not a chevy/gm fan but i love me a nice SS,WS6,or a ZO6

 

ya and at 107 mph with a BAD 6oft

my brother has a 99 gt full bolt ons gears and tune ran 13.8 at 100 mph with a way better 60fft

 

yeah its all about the 60ft and trap speed.

 

I've never thought about E85, I've always thrown in 20% methanol but the E85 might be easier to get

 

Great to hear you passed. I live in california too, (have 6 cars/ trucks) and they all come due( smog) within a month of each other. What a pain in the butt.

One of biggest things you can due to pass( other than keeping your truck/car tuned-up) is make sure the engine/ cat is up to operating temp before your test. I make an appointment, and time it so I just get in after a 30 min. highway drive.

 

yeah you want the cats nice and hot, but hi nox reading usually come from something running too hot in the combustion chamber. otherwise run that bish nice and hard before the test and call it a day