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Emissions test 2010

Did my emissions test today. Results are as follows:

  HC (PPM) CO(%) CO+CO2(%) O2
Cruise limit 150 1.1 6 N/A
Cruise emissions 16 0.01 14.71 0.54
Cruise result PASS PASS    
Idle Limit 220 1.2 6 N/A
Idle Emissions 33 0 14.8 0.51
Idle Result PASS PASS    

Very happy with the results. Autronic Closed Loop Control was used during the test, AFR tuned to 14.7 at idle and cruise.

Below is a picture how well Autronic can keep the engine in closed loop (Select view image to see the complete picture):

Standard deviation for AFR at idle is 0.120, which is very good.

Manifold pressure is stable as well, standard deviation 0.4 kPa.

This is a good proof that good aftermarket ECU is able to meet emissions, very good job, Autronic.

And special thanks to Ian Hamwood from Autronic who helped me to tune the CLC.

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