Emission Test Results on my hybrid
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Emission Test Results on my hybrid
Im tyring to get a BAR certified sticker for my US B18C1. Numbers ran during the PRETEST are:
15MPH : 1895 RPM 15.2% CO2 0.1 02. || HC 89|90 Passed || C0 .08|.54 Passed || NO 492|711 Passed
25MPH : 2307 RPM 15.2% C02 0.1 02. || HC 54|56 Passed || C0 .07|.53 Passed || NO 387|754 Passed
I passed visual except for ignition timing test on the functional. That can probably be fixed by advancing/retarding.
What can I do to bring down the HC and CO numbers? The numbers were borderline, I dont want to fail during the real testing. HC was probably high b/c the temperature was around 40 degrees and the catylitic convertor was probably not warmed up enough yet. Will new plugs, wires, filters help any at all? I need to schedule a BAR inspection for my sticker soon...registration is coming up....trying to get the car ready for the test. Thanks for any input.
15MPH : 1895 RPM 15.2% CO2 0.1 02. || HC 89|90 Passed || C0 .08|.54 Passed || NO 492|711 Passed
25MPH : 2307 RPM 15.2% C02 0.1 02. || HC 54|56 Passed || C0 .07|.53 Passed || NO 387|754 Passed
I passed visual except for ignition timing test on the functional. That can probably be fixed by advancing/retarding.
What can I do to bring down the HC and CO numbers? The numbers were borderline, I dont want to fail during the real testing. HC was probably high b/c the temperature was around 40 degrees and the catylitic convertor was probably not warmed up enough yet. Will new plugs, wires, filters help any at all? I need to schedule a BAR inspection for my sticker soon...registration is coming up....trying to get the car ready for the test. Thanks for any input.
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Joined: Jun 2002
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From: Where the Hell is 29 Palms
Re: Emission Test Results on my hybrid (asiandoood)
https://honda-tech.com/zerothread?id=1078712 Here's a good thread about it.
This is a suggested order for NOx failure of things to check:
1. EGR System
2. O2 Sensor
3. Timing/Spark Advance
4. Catalytic Converter
5. Incorrect/faulty thermostat
6. Coolant Temp Sensor may be open
7. MAP Sensor
8. MAF Sensor
9. Other sensors/switchs (uhhh yeah, ok)
10. Fuel Injection System
11. Faulty On-Board COmputer
12. Computer PROM
13. Internal Engine Repair
High HC Failure:
1. Spark Plugs and Wires
2. Timing Spark Advance
3. Vacuum Leaks
4. Other Ignition Problems
5. O2 Sensor
6 Evaporative fuel system
7. Fuel Injection System
8. Air/Fuel Mixture Adjustment
9. PCV System
10. Catalytic Converter(s)
11. Throttle Position Sensor
12. MAP Sensor
13. MAF Sensor
14. Other Sensors/Switchs (dohh, again)
15. Computer PROM
16. Internal Engine Repair
High CO Failure:
In the case of carb engines, up to 85-86
1. Choke System
2. Carburetor Repair
In the case of fuel injected engines, from 1986 on,
1. Fuel Injection System
2. Induction system problems
3. O2 Sensor
4. TPS
5. MAP
6. MAF
7. Coolant Temp Sensor may be closed
8. OTher sensors/switches (I guess this is a CYA thing (cover your ***)
9. Valve train problems
10.Jumped engine timing belt
Plus...
Idle speed adjustment
Air Filter Condition
Thermostatic Air Cleaner
Air Injection/Reaction System
EVAP fuel system
Oil and Filter Change
Catalytic Converter
Computer PROM
This is a suggested order for NOx failure of things to check:
1. EGR System
2. O2 Sensor
3. Timing/Spark Advance
4. Catalytic Converter
5. Incorrect/faulty thermostat
6. Coolant Temp Sensor may be open
7. MAP Sensor
8. MAF Sensor
9. Other sensors/switchs (uhhh yeah, ok)
10. Fuel Injection System
11. Faulty On-Board COmputer
12. Computer PROM
13. Internal Engine Repair
High HC Failure:
1. Spark Plugs and Wires
2. Timing Spark Advance
3. Vacuum Leaks
4. Other Ignition Problems
5. O2 Sensor
6 Evaporative fuel system
7. Fuel Injection System
8. Air/Fuel Mixture Adjustment
9. PCV System
10. Catalytic Converter(s)
11. Throttle Position Sensor
12. MAP Sensor
13. MAF Sensor
14. Other Sensors/Switchs (dohh, again)
15. Computer PROM
16. Internal Engine Repair
High CO Failure:
In the case of carb engines, up to 85-86
1. Choke System
2. Carburetor Repair
In the case of fuel injected engines, from 1986 on,
1. Fuel Injection System
2. Induction system problems
3. O2 Sensor
4. TPS
5. MAP
6. MAF
7. Coolant Temp Sensor may be closed
8. OTher sensors/switches (I guess this is a CYA thing (cover your ***)
9. Valve train problems
10.Jumped engine timing belt
Plus...
Idle speed adjustment
Air Filter Condition
Thermostatic Air Cleaner
Air Injection/Reaction System
EVAP fuel system
Oil and Filter Change
Catalytic Converter
Computer PROM
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