Please Help Me Pass Emissions

scruffboy · 12-07-2005, 12:06 PM

I recently went for inspection here in New Jersey and failed for emissions. I don't have the printout with me, but I believe I passed the NOx but failed for High Carbons and one other thing (not sure). I don't want to get ripped off so can someone set me in the right direction. The car runs great and I just did a tune-up (plugs, wires, rotor, fuel filter, air filter, etc.), though I did notice a little oil on one pair of the plugs. I also do regular oil changes using castrol syntech. I also use high octane fuel (92). I know nothing about the O2 sensor but a mechanic I stopped at on the way home said something about maybe getting too much air in the mixture? I don't think its the charcoal cannister, as I don't smell fuel in the interior. The mechanic I saw said it may cost about $250.00 (ballpark figure), plus 75 for the re-inspection fee. Can anyone help me. PLEASE!

Sincerely,

James

SupraMan1784 · 12-07-2005, 02:46 PM

james did you go to the inspection station in paramus?

scruffboy · 12-07-2005, 02:55 PM

No, I went to Secaucus as I heard they were O.K. also.

James

SupraMan1784 · 12-07-2005, 03:06 PM

those guys dint pass you? hmm...well im tellin you man make that trek to paramus...or talk to nickeleye...i think he used to work with emissions

mrnickleye · 12-08-2005, 03:52 AM

If you can get the info (#'s) off the 'failed' report, I can steer you to what is wrong. I manage a smog shop here in So. Cal. (the most anal smog control co. in the world)

SupraMan1784 · 12-08-2005, 01:54 PM

i knew it...i knew he was gonna post on this thread sometime...the question was when

vladkalika · 12-14-2005, 04:01 AM

Make sure your car is hot by the time it gets tested. Drive it hard for 1/2 hour and your catalytic converter will be at their optimum. If you still fail then you need to do some work

Quote:

Originally Posted by scruffboy

I recently went for inspection here in New Jersey and failed for emissions. I don't have the printout with me, but I believe I passed the NOx but failed for High Carbons and one other thing (not sure). I don't want to get ripped off so can someone set me in the right direction. The car runs great and I just did a tune-up (plugs, wires, rotor, fuel filter, air filter, etc.), though I did notice a little oil on one pair of the plugs. I also do regular oil changes using castrol syntech. I also use high octane fuel (92). I know nothing about the O2 sensor but a mechanic I stopped at on the way home said something about maybe getting too much air in the mixture? I don't think its the charcoal cannister, as I don't smell fuel in the interior. The mechanic I saw said it may cost about $250.00 (ballpark figure), plus 75 for the re-inspection fee. Can anyone help me. PLEASE!

Sincerely,

James

scruffboy · 12-14-2005, 01:22 PM

Found O2 sensor at exhaust manifold hanging off with no gasket so replaced it with a new (Bosch) sensor, then spent half hour looking for sub-sensor near cat till I realized I was looking at a Calif. setup, lol. It definately made a difference but MrNickleye thinks I may need new cat from riding around so fuel rich for so long and I think he may be right. Right now I have other problems as my hood cable snapped and I can't for the life of me get the hood poped even with all the great help I got off this forum, so I set up an appointment at a body shop where I know the guy and he is pretty decent. Thank you to everyone who responded.

James in NJ

Isphius · 12-17-2005, 10:04 PM

I also just went through inspection...and failed pretty bad for emissions. if anyone could help that would be cool. im gona look at the car tommorow. I think that could be the oxygen sensor. or any chance a blown headgasket could do that? the car doesnt smoke or anything so i dont think it has a blown headgasket. thanks in advance

nox std. - 1110 me - 3180
HC std. - 148 me - 197
co% std. - .83 me - .88

mrnickleye · 12-18-2005, 09:32 PM

Isphius........

It appears you need an 02 sensors to bring down the CO% and the HCs.

What kind of test is it? Dyno? idle? 2500rpm?

Apply a vacuum (mouth suction is enough) to the EGR valve at idle and if the engine coughs and sputters, then the EGR valve and passages are ok.
But the modulator or hoses may be a problem.
If no change in the engine is seen, and the valve diaphram holds vacuum, then the passaged are plugged.

N/A 7mge, Start with the cover (4 bolts) on the top of the intake runner. http://www.cygnusx1.net/supra/librar.../em/EM_20.html
its far left in photo, middle.

with a new valve job, tuneup, cat conv, 02 sensor, and clean EGR system.
My #s here in Calif with Dyno test:
15mph

HC. max=106...me=70
CO%. max=0.70...me=0.14
NOx. max=762...me=482

25mph

HC. max=81...me=30
CO%. max=0.57...me=0.00
NOx. max=701...me=152

12-07-2005, 12:06 PM	#1
scruffboy walbro fp Join Date: Sep 2005 Location: Kearny, New Jersey, USA Posts: 427	Please Help Me Pass Emissions I recently went for inspection here in New Jersey and failed for emissions. I don't have the printout with me, but I believe I passed the NOx but failed for High Carbons and one other thing (not sure). I don't want to get ripped off so can someone set me in the right direction. The car runs great and I just did a tune-up (plugs, wires, rotor, fuel filter, air filter, etc.), though I did notice a little oil on one pair of the plugs. I also do regular oil changes using castrol syntech. I also use high octane fuel (92). I know nothing about the O2 sensor but a mechanic I stopped at on the way home said something about maybe getting too much air in the mixture? I don't think its the charcoal cannister, as I don't smell fuel in the interior. The mechanic I saw said it may cost about $250.00 (ballpark figure), plus 75 for the re-inspection fee. Can anyone help me. PLEASE! Sincerely, James

12-07-2005, 02:46 PM	#2
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	james did you go to the inspection station in paramus? __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

12-07-2005, 02:55 PM	#3
scruffboy walbro fp Join Date: Sep 2005 Location: Kearny, New Jersey, USA Posts: 427	Re: Inspection No, I went to Secaucus as I heard they were O.K. also. James

12-07-2005, 03:06 PM	#4
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	those guys dint pass you? hmm...well im tellin you man make that trek to paramus...or talk to nickeleye...i think he used to work with emissions __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

12-08-2005, 01:54 PM	#6
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	i knew it...i knew he was gonna post on this thread sometime...the question was when __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

12-08-2005, 03:52 AM	#5
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	If you can get the info (#'s) off the 'failed' report, I can steer you to what is wrong. I manage a smog shop here in So. Cal. (the most anal smog control co. in the world)

12-14-2005, 01:22 PM	#8
scruffboy walbro fp Join Date: Sep 2005 Location: Kearny, New Jersey, USA Posts: 427	Re: Emissions Found O2 sensor at exhaust manifold hanging off with no gasket so replaced it with a new (Bosch) sensor, then spent half hour looking for sub-sensor near cat till I realized I was looking at a Calif. setup, lol. It definately made a difference but MrNickleye thinks I may need new cat from riding around so fuel rich for so long and I think he may be right. Right now I have other problems as my hood cable snapped and I can't for the life of me get the hood poped even with all the great help I got off this forum, so I set up an appointment at a body shop where I know the guy and he is pretty decent. Thank you to everyone who responded. James in NJ

12-17-2005, 10:04 PM	#9
Isphius 500whp yet? Join Date: Nov 2005 Location: Long branch, NJ Posts: 1,006	I also just went through inspection...and failed pretty bad for emissions. if anyone could help that would be cool. im gona look at the car tommorow. I think that could be the oxygen sensor. or any chance a blown headgasket could do that? the car doesnt smoke or anything so i dont think it has a blown headgasket. thanks in advance nox std. - 1110 me - 3180 HC std. - 148 me - 197 co% std. - .83 me - .88 Last edited by Isphius; 12-17-2005 at 10:09 PM.

12-18-2005, 09:32 PM	#10
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Isphius........ It appears you need an 02 sensors to bring down the CO% and the HCs. What kind of test is it? Dyno? idle? 2500rpm? Apply a vacuum (mouth suction is enough) to the EGR valve at idle and if the engine coughs and sputters, then the EGR valve and passages are ok. But the modulator or hoses may be a problem. If no change in the engine is seen, and the valve diaphram holds vacuum, then the passaged are plugged. N/A 7mge, Start with the cover (4 bolts) on the top of the intake runner. http://www.cygnusx1.net/supra/librar.../em/EM_20.html its far left in photo, middle. with a new valve job, tuneup, cat conv, 02 sensor, and clean EGR system. My #s here in Calif with Dyno test: 15mph HC. max=106...me=70 CO%. max=0.70...me=0.14 NOx. max=762...me=482 25mph HC. max=81...me=30 CO%. max=0.57...me=0.00 NOx. max=701...me=152

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