Yes, it's a California car with the yellow emmisions decal. I was able to verify the on/off ratio now, and it is pretty steady, with a low of 52% to a high of 58.5%, with the average at 56.5%. Within specifications, but maybe a little lean. Would you change it if it were yours? Seems in other replies that you recommend around 45%.

Thanks again.

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Ted Beer
'91 190E 2.3