My vehicle has excessive CO2 and O2 levels and won't pass the California smog test. What, in general, could be the cause for the excessive levels and what can I do to get those levels down in order to pass the test? Today is my deadline, so please help!
2007-08-30 10:06:42 · 8 answers · asked by Bruce J 1 in Cars & Transportation ➔ Maintenance & Repairs
I take it you're trolling for idiots who pretend to know what they're talking about, and hit the jackpot.
2007-08-30 14:31:25 · answer #1 · answered by Nomadd 7 · 0⤊ 1⤋
change all spark plugs and wires if you havent already.
B)
Take the car on the highway and drive it fo about 15- 20 miles get the engine hot then
when you get onto the >>on ramps<< and need to accelerate >>punch the gas pedal down to the floor,, the hi rev will break the carbon loose from the valves and pistons<<
thus blowing out the dirt from the motor and will heat up the cat converter and 02 sensors.
FYI: The cat converter only works when the engine is hot.
by performing this,, will make it perform better at the emissions test. After a few time of getting on and off the hiway then take it stright to the test shop and then let them test it hot. Bet it will pass.
Modern Automotive Tech: Engine Proformance and tune up specialist
OBD1 /OBD 2/ OBD 3
2007-08-30 10:29:08 · answer #2 · answered by ? 4 · 0⤊ 1⤋
ok it could be the catalyctic converter or your o2 sensor might be out but i do know this if you live in california you could ask for a form that you fill out and if you dont have the money to fix the problem then the state pays for it but there are some requierements or you can just ask the guy who did your smog test to fix it or at least tell you whats wrong
2007-08-30 10:15:49 · answer #3 · answered by altima 5 · 0⤊ 1⤋
car what car., it is a car right.
do you have a clue?
do you expect us to be Clairvoyant .
were you on a dyno when this happened IM240 run?
and if yes, what RPM did this happen.
not having any facts makes the solution , impossible.
but.. guessing is fun, try an air leak, more commonly called a vacuum leak, test all the vacuum hoses and the IAC and the EGR valve for its being unbolted or bad gasket under EGR.
but I could be wrong and this could be a YUGO with 750,000 miles on it.
2007-08-30 11:13:23 · answer #4 · answered by gearhead 2 · 0⤊ 1⤋
in about 90% of cases, if the car seems to be running right, a new catalytic converter will almost guarantee a passed test.
Like has been said, the year and condition of the car would be a great help.
2007-08-30 10:13:13 · answer #5 · answered by tallcowboy0614 6 · 1⤊ 1⤋
C02 and O2 are very easy to fix..... this is an air problem... so....
Change your spark plugs and change your air filter to a new one..... as long as your oxygen sensors are working fine, you should pass inspection no problem.
2007-08-30 10:43:40 · answer #6 · answered by Stampy Skunk 6 · 0⤊ 1⤋
Year make model
Could be the cat. or the MAP sensor.
2007-08-30 10:09:52 · answer #7 · answered by mybuttstinks2001 5 · 0⤊ 0⤋
misfiring cylinders ... plus and plug wires
2007-08-30 10:10:56 · answer #8 · answered by John St.Louis 5 · 0⤊ 0⤋