Won't pass emissions
07-26-2014, 07:54 PM
#1
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Won't pass emissions
Took car today for emissions test hc 2521 before i changed thermostat,back to stock,fan switch and chip reprogramed new hc readings around 1800 still to high any suggestions?
07-26-2014, 10:02 PM
#3
Le Mans Master
I would not think that the thermostat would have a large impact on your numbers, nor the fan switch. 
with Kimmer....your getting too much unburned fuel running thru the system. Check plug wires, new plugs and gap correctly. Did you change injectors to a larger than stock size? Really wondering about your new chip.
Do you have an adjustable fuel pressure regulator? If so, did you turn it up to increase the pressure.
You also need to include the YEAR of your car in your post. It makes a difference in being able to help you with your problem.
Sending PM.
with Kimmer....your getting too much unburned fuel running thru the system. Check plug wires, new plugs and gap correctly. Did you change injectors to a larger than stock size? Really wondering about your new chip.Do you have an adjustable fuel pressure regulator? If so, did you turn it up to increase the pressure.
You also need to include the YEAR of your car in your post. It makes a difference in being able to help you with your problem.
Sending PM.
07-27-2014, 12:09 AM
#4
Drifting
07-27-2014, 05:18 PM
#8
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I would not think that the thermostat would have a large impact on your numbers, nor the fan switch. with Kimmer....your getting too much unburned fuel running thru the system. Check plug wires, new plugs and gap correctly. Did you change injectors to a larger than stock size? Really wondering about your new chip.
Do you have an adjustable fuel pressure regulator? If so, did you turn it up to increase the pressure.
You also need to include the YEAR of your car in your post. It makes a difference in being able to help you with your problem.
Sending PM.
with Kimmer....your getting too much unburned fuel running thru the system. Check plug wires, new plugs and gap correctly. Did you change injectors to a larger than stock size? Really wondering about your new chip.Do you have an adjustable fuel pressure regulator? If so, did you turn it up to increase the pressure.
You also need to include the YEAR of your car in your post. It makes a difference in being able to help you with your problem.
Sending PM.
07-27-2014, 05:21 PM
#9
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Member Since: Sep 2006
Posts: 44
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I would not think that the thermostat would have a large impact on your numbers, nor the fan switch. with Kimmer....your getting too much unburned fuel running thru the system. Check plug wires, new plugs and gap correctly. Did you change injectors to a larger than stock size? Really wondering about your new chip.
Do you have an adjustable fuel pressure regulator? If so, did you turn it up to increase the pressure.
You also need to include the YEAR of your car in your post. It makes a difference in being able to help you with your problem.
Sending PM.
with Kimmer....your getting too much unburned fuel running thru the system. Check plug wires, new plugs and gap correctly. Did you change injectors to a larger than stock size? Really wondering about your new chip.Do you have an adjustable fuel pressure regulator? If so, did you turn it up to increase the pressure.
You also need to include the YEAR of your car in your post. It makes a difference in being able to help you with your problem.
Sending PM.
07-27-2014, 06:33 PM
#10
Drifting
