86 Accord Failed Emissions High CO

[JP]

My 1986 Accord (225000 miles) failed the WA state emission test. Results shown below. High CO at cruise, but passes on everything else. I checked the last 3 tests (testing is every 2 years) and on each of these I have just squeeked by on the CO. I remember years earlier that the CO was zero at cruise, but now it's more than double the allowable.

HC (PPM) CO (%) CO+CO2 (%) O2 (%)
RPM
2525 Limit: 160 1.20 > 6 N/A N/A 2525 Emissions: 120 2.99 16.39
0.0 N/A
2525 Result: PASS FAIL N/A N/A N/A

Idle Limit: 220 1.20 > 6 N/A N/A
Idle Emissions: 64 0.00 14.80
0.7 1080
Idle Result: PASS PASS N/A N/A N/A Any ideas on what could be amuck, or should I just pay the $150 for a waiver?

Thanks,
John

 

[Elle (4)]

http://www.aa1car.com/library/2000/ic60032.htm

My 1986 Accord (225000 miles) failed the WA state emission test. Results shown below. High CO at cruise, but passes on everything else. I checked the last 3 tests (testing is every 2 years) and on each of these I have just squeeked by on the CO. I remember years earlier that the CO was zero at cruise, but now it's more than double the allowable.

HC (PPM) CO (%) CO+CO2 (%)
O2 (%) RPM
2525 Limit: 160 1.20 > 6 N/A N/A 2525 Emissions: 120 2.99
16.39 0.0 N/A
2525 Result: PASS FAIL N/A N/A N/A

Idle Limit: 220 1.20
Idle Emissions: 64 0.00
14.80 0.7 1080
Idle Result: PASS PASS
N/A N/A N/A
Any ideas on what could be amuck, or should I just pay the $150 for a waiver?

Thanks,
John

 

[Elle (4)]

http://www.aa1car.com/library/2000/ic60032.htm

My 1986 Accord (225000 miles) failed the WA state emission test. Results shown below. High CO at cruise, but passes on everything else. I checked the last 3 tests (testing is every 2 years) and on each of these I have just squeeked by on the CO. I remember years earlier that the CO was zero at cruise, but now it's more than double the allowable.

HC (PPM) CO (%) CO+CO2 (%)
O2 (%) RPM
2525 Limit: 160 1.20 > 6 N/A N/A 2525 Emissions: 120 2.99
16.39 0.0 N/A
2525 Result: PASS FAIL N/A N/A N/A

Idle Limit: 220 1.20
Idle Emissions: 64 0.00
14.80 0.7 1080
Idle Result: PASS PASS
N/A N/A N/A
Any ideas on what could be amuck, or should I just pay the $150 for a waiver?

Thanks,
John

 

[z]

My 1986 Accord (225000 miles) failed the WA state emission test.  Results shown below.  High CO at cruise, but passes on everything else. I checked the last 3 tests (testing is every 2 years) and on each of these I have just squeeked by on the CO.  I remember years earlier that the CO was zero at cruise,  but now it's more than double the allowable.

                       HC (PPM)     CO (%)     CO+CO2 (%)     O2 (%) RPM 2525 Limit:            160            1.20             > 6 N/A             N/A 2525 Emissions:      120             2.99             16.39
0.0             N/A
2525 Result:         PASS           FAIL             N/A                 N/A N/A

Idle Limit:                 220             1..20             > 6 N/A             N/A
Idle Emissions:            64            0.00            14.80
0.7            1080
Idle Result:                 PASS         PASS             N/A N/A         N/A Any ideas on what could be amuck, or should I just pay the $150 for a waiver?

Thanks,
John

mmmm.... a first guess is usually the O2 sensor. which is probably about the same price to install as the waiver. more arcane things people suggest include a clogged air filter, but I'd think it would have to be damn near impenetrable to actually affect your emissions. i could be wrong.

geez, up here you need to run up like $500 in bills before you get a waiver; and they won't let you include parts you buy and install yourself, it has to be work done by a genyoowine mechanic feller who has to sign an official paper that you gave him all that money to try and fix your emissions, besides including the itemized bill etc. i guess they're a little worried that folks might cheat a bit if they could just submit a bill for parts they bought and said they installed. i'm shocked they would think that. easiest thing to do is have the mechanic install a new catalytic converter every two years.

 

[z]

My 1986 Accord (225000 miles) failed the WA state emission test.  Results shown below.  High CO at cruise, but passes on everything else. I checked the last 3 tests (testing is every 2 years) and on each of these I have just squeeked by on the CO.  I remember years earlier that the CO was zero at cruise,  but now it's more than double the allowable.

                       HC (PPM)     CO (%)     CO+CO2 (%)     O2 (%) RPM 2525 Limit:            160            1.20             > 6 N/A             N/A 2525 Emissions:      120             2.99             16.39
0.0             N/A
2525 Result:         PASS           FAIL             N/A                 N/A N/A

Idle Limit:                 220             1..20             > 6 N/A             N/A
Idle Emissions:            64            0.00            14.80
0.7            1080
Idle Result:                 PASS         PASS             N/A N/A         N/A Any ideas on what could be amuck, or should I just pay the $150 for a waiver?

Thanks,
John

mmmm.... a first guess is usually the O2 sensor. which is probably about the same price to install as the waiver. more arcane things people suggest include a clogged air filter, but I'd think it would have to be damn near impenetrable to actually affect your emissions. i could be wrong.

geez, up here you need to run up like $500 in bills before you get a waiver; and they won't let you include parts you buy and install yourself, it has to be work done by a genyoowine mechanic feller who has to sign an official paper that you gave him all that money to try and fix your emissions, besides including the itemized bill etc. i guess they're a little worried that folks might cheat a bit if they could just submit a bill for parts they bought and said they installed. i'm shocked they would think that. easiest thing to do is have the mechanic install a new catalytic converter every two years.

 

[JP]

mmmm.... a first guess is usually the O2 sensor. which is probably about the same price to install as the waiver. more arcane things people suggest include a clogged air filter, but I'd think it would have to be damn near impenetrable to actually affect your emissions. i could be wrong.

geez, up here you need to run up like $500 in bills before you get a waiver; and they won't let you include parts you buy and install yourself, it has to be work done by a genyoowine mechanic feller who has to sign an official paper that you gave him all that money to try and fix your emissions, besides including the itemized bill etc. i guess they're a little worried that folks might cheat a bit if they could just submit a bill for parts they bought and said they installed. i'm shocked they would think that. easiest thing to do is have the mechanic install a new catalytic converter every two years.

I was unsure about the O2 sensor or catalytic converter, so I figured I'd try the cheaper and replaced the O2 sensor for $70. I also replaced the air cleaner, but the old one looked fine. Went back through emission test and CO dropped from 2.99% to 0.07%, HC dropped from 120ppm to 50ppm. I'm good to go for two more years.

 

[JP]

mmmm.... a first guess is usually the O2 sensor. which is probably about the same price to install as the waiver. more arcane things people suggest include a clogged air filter, but I'd think it would have to be damn near impenetrable to actually affect your emissions. i could be wrong.

geez, up here you need to run up like $500 in bills before you get a waiver; and they won't let you include parts you buy and install yourself, it has to be work done by a genyoowine mechanic feller who has to sign an official paper that you gave him all that money to try and fix your emissions, besides including the itemized bill etc. i guess they're a little worried that folks might cheat a bit if they could just submit a bill for parts they bought and said they installed. i'm shocked they would think that. easiest thing to do is have the mechanic install a new catalytic converter every two years.

I was unsure about the O2 sensor or catalytic converter, so I figured I'd try the cheaper and replaced the O2 sensor for $70. I also replaced the air cleaner, but the old one looked fine. Went back through emission test and CO dropped from 2.99% to 0.07%, HC dropped from 120ppm to 50ppm. I'm good to go for two more years.

 

[Andy]

My 1986 Accord (225000 miles) failed the WA state emission test.  Results shown below.  High CO at cruise, but passes on everything else. I checked the last 3 tests (testing is every 2 years) and on each of these I have just squeeked by on the CO.  I remember years earlier that the CO was zero at cruise,  but now it's more than double the allowable.

                       HC (PPM)     CO (%)     CO+CO2 (%)     O2 (%) RPM 2525 Limit:            160            1.20             > 6 N/A             N/A 2525 Emissions:      120             2.99             16.39
0.0             N/A
2525 Result:         PASS           FAIL             N/A                 N/A N/A

Idle Limit:                 220             1..20             > 6 N/A             N/A
Idle Emissions:            64            0.00            14.80
0.7            1080
Idle Result:                 PASS         PASS             N/A N/A         N/A Any ideas on what could be amuck, or should I just pay the $150 for a waiver?

Thanks,
John

Hey John,

I had a similar concern with my 1987 Honda Accord and I subscribed to ALLDATAdiy.com and it has been very useful. I am handy and like to do things myself and this subscription gives me diagnosis, repair, TBSs, recalls and labor times. I hope you find it useful - it's pretty cheap considering the information comes directly from the manufacturer.

Check it out - I copied the link below for you.

http://traffic.alldatadiy.com/cgi-bin/redir?pd_link=i1-a44690-o4010-c66365

Andy Deil

 

[Andy]

My 1986 Accord (225000 miles) failed the WA state emission test.  Results shown below.  High CO at cruise, but passes on everything else. I checked the last 3 tests (testing is every 2 years) and on each of these I have just squeeked by on the CO.  I remember years earlier that the CO was zero at cruise,  but now it's more than double the allowable.

                       HC (PPM)     CO (%)     CO+CO2 (%)     O2 (%) RPM 2525 Limit:            160            1.20             > 6 N/A             N/A 2525 Emissions:      120             2.99             16.39
0.0             N/A
2525 Result:         PASS           FAIL             N/A                 N/A N/A

Idle Limit:                 220             1..20             > 6 N/A             N/A
Idle Emissions:            64            0.00            14.80
0.7            1080
Idle Result:                 PASS         PASS             N/A N/A         N/A Any ideas on what could be amuck, or should I just pay the $150 for a waiver?

Thanks,
John

Hey John,

I had a similar concern with my 1987 Honda Accord and I subscribed to ALLDATAdiy.com and it has been very useful. I am handy and like to do things myself and this subscription gives me diagnosis, repair, TBSs, recalls and labor times. I hope you find it useful - it's pretty cheap considering the information comes directly from the manufacturer.

Check it out - I copied the link below for you.

http://traffic.alldatadiy.com/cgi-bin/redir?pd_link=i1-a44690-o4010-c66365

Andy Deil

 

[JP]

Hey John,

I had a similar concern with my 1987 Honda Accord and I subscribed to ALLDATAdiy.com and it has been very useful. I am handy and like to do things myself and this subscription gives me diagnosis, repair, TBSs, recalls and labor times. I hope you find it useful - it's pretty cheap considering the information comes directly from the manufacturer.

Check it out - I copied the link below for you.

http://traffic.alldatadiy.com/cgi-bin/redir?pd_link=i1-a44690-o4010-c66365

Andy Deil

Andy,

Thanks for the link. I've looked at the ALLDATA database at our local library and did see quite a bit of information available. I also have the honda shop manual for my car, which has pretty detailed information on testing components.

The problem I had was just with the emission test, the car ran fine. Since I only had to spend $150 to obtain a waiver, I just wanted to try what was relatively cheap, might help, and would count toward the waiver.

I replaced the O2 sensor and went back to the emission station and passed with flying colors. CO dropped from 2.99% to 0.07%.

John

 

[JP]

Hey John,

I had a similar concern with my 1987 Honda Accord and I subscribed to ALLDATAdiy.com and it has been very useful. I am handy and like to do things myself and this subscription gives me diagnosis, repair, TBSs, recalls and labor times. I hope you find it useful - it's pretty cheap considering the information comes directly from the manufacturer.

Check it out - I copied the link below for you.

http://traffic.alldatadiy.com/cgi-bin/redir?pd_link=i1-a44690-o4010-c66365

Andy Deil

Andy,

Thanks for the link. I've looked at the ALLDATA database at our local library and did see quite a bit of information available. I also have the honda shop manual for my car, which has pretty detailed information on testing components.

The problem I had was just with the emission test, the car ran fine. Since I only had to spend $150 to obtain a waiver, I just wanted to try what was relatively cheap, might help, and would count toward the waiver.

I replaced the O2 sensor and went back to the emission station and passed with flying colors. CO dropped from 2.99% to 0.07%.

John

 

[Tegger (2)]

Andy,

Thanks for the link. I've looked at the ALLDATA database at our local library and did see quite a bit of information available. I also have the honda shop manual for my car, which has pretty detailed information on testing components.

The problem I had was just with the emission test, the car ran fine. Since I only had to spend $150 to obtain a waiver, I just wanted to try what was relatively cheap, might help, and would count toward the waiver.

I replaced the O2 sensor and went back to the emission station and passed with flying colors. CO dropped from 2.99% to 0.07%.

John

"Andy Deil" is a spammer. He's posted a similar message in at least one other group, with his supposed car changed to fit the thread he replied to.

You can get most of that for free without any sort of signup, here:
http://search.ebscohost.com/
Log in with
username: lib
password: access
Choose "Auto Repair Reference Center" from the menu at left, then navigate to your car.

 

[Tegger (2)]

Andy,

Thanks for the link. I've looked at the ALLDATA database at our local library and did see quite a bit of information available. I also have the honda shop manual for my car, which has pretty detailed information on testing components.

The problem I had was just with the emission test, the car ran fine. Since I only had to spend $150 to obtain a waiver, I just wanted to try what was relatively cheap, might help, and would count toward the waiver.

I replaced the O2 sensor and went back to the emission station and passed with flying colors. CO dropped from 2.99% to 0.07%.

John

"Andy Deil" is a spammer. He's posted a similar message in at least one other group, with his supposed car changed to fit the thread he replied to.

You can get most of that for free without any sort of signup, here:
http://search.ebscohost.com/
Log in with
username: lib
password: access
Choose "Auto Repair Reference Center" from the menu at left, then navigate to your car.