passing emissions
02-15-2005, 06:49 PM
#1
2nd Gear Member
Thread Starter
Join Date: Dec 2004
Location: king kongs stomach
Posts: 213
passing emissions
Put h pipe with cats on it, used octane booster, changed spark plugs, did tune up, changed thermosthat to 190 degrees. Change oxygen sensors and it still fails. Is there anything i can put in the car that will make it pass. The guy says im just missing it by not that much. I heard about putting alcohol in the car or something but where can i get the right stuff to put in . Any input would be nice on what else I can do to pass.
02-15-2005, 07:55 PM
#3
6th Gear Member
Join Date: May 2004
Location: las vegas, nv
Posts: 9,092
RE: passing emissions
a link to a site (cant remember which one) was posted on this subject once before. i believe this was in a reputable magazine.
• Back timing down to 8 degrees (any less is not legal)
• Run hotter T-stat (192)
• Full tune up w/oil change
• Adjust idle to as close to 1000rpm without going over (950 is the best)
• Have fuel inj professionally cleaned or use the below mentioned (Amzoil Power Foam)
• Spray 1 full can of Amzoil's Power Foam in the throttle body while car is running
• Double check to make sure your TPS is at .993-.995
• Back fuel pressure down (around 30psi w/vacuum)
• Run 2 oz of "RXP". Many mechanics at smog stations use this to pass customer cars.
• Use 89 octane, higher octane burns slower and raises emmissons
• Run 1 or 2 bottles of rubbing alcohol to a 1/4 tank of 89 octane
FYI, You do not have to do ALL these things at once, alot will depend on where you live and how strict the smog laws are, but out here in Calif which is know for it's very strict smog laws, I have found that doing items 1-10 let me fly by the limits producing numbers that are as good and sometimes even better than new 4 cylinder cars.
my questions are, what is RXP? what rubbing alcohol? and what is the stock fuel pressure (out of curiousity)?
• Back timing down to 8 degrees (any less is not legal)
• Run hotter T-stat (192)
• Full tune up w/oil change
• Adjust idle to as close to 1000rpm without going over (950 is the best)
• Have fuel inj professionally cleaned or use the below mentioned (Amzoil Power Foam)
• Spray 1 full can of Amzoil's Power Foam in the throttle body while car is running
• Double check to make sure your TPS is at .993-.995
• Back fuel pressure down (around 30psi w/vacuum)
• Run 2 oz of "RXP". Many mechanics at smog stations use this to pass customer cars.
• Use 89 octane, higher octane burns slower and raises emmissons
• Run 1 or 2 bottles of rubbing alcohol to a 1/4 tank of 89 octane
FYI, You do not have to do ALL these things at once, alot will depend on where you live and how strict the smog laws are, but out here in Calif which is know for it's very strict smog laws, I have found that doing items 1-10 let me fly by the limits producing numbers that are as good and sometimes even better than new 4 cylinder cars.
my questions are, what is RXP? what rubbing alcohol? and what is the stock fuel pressure (out of curiousity)?
02-16-2005, 01:11 AM
#10
2nd Gear Member
Thread Starter
Join Date: Dec 2004
Location: king kongs stomach
Posts: 213
RE: passing emissions
lol its all done by computer now.. if i fail the test it goes straight to the CT DMV.They are making it tough to get around now. Should i maybe try a hotter thermostat? im using a 190 degree one right now and my engine is always running way below Half all the time. Maybe my car isnt getting hot enough to burn up all the gas?