Quote:
Originally Posted by GregoryV022
Unfortunately I Do not know exactly what steps were taken. At the time my father was dealing with the car and our mechanic took care of the issues.
What I do know is it has melted the first stage catalytic system twice because of over fueling. So I know both catalytic converters are fine. I don't know the status of all those other parts though. So I will begin to work through those.
I also have the Smog Numbers now.
%C02 = 10.2
%02 = 0.5
HC(ppm) = 249 (Max allowed = 105)
%CO = 6.66 (Max allowed = 0.61)
NO(ppm) = 54 (Max allowed = 945)
Hope that helps.
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You need to provide more information. Scan and post the ASM test report. Was it certified to CA or 49-state emissions. That should be on the emission label under the hood and maybe on the test report.
Does the car show any evidence that it has been modified? Does the catalyst appear to be OE or an aftermarket replacement? Same for the O2 sensor.
Has the check engine light ever illumiated? Did you read out the codes? What were they?
In the meantime, search for threads stated by me on emissions. I've done a lot of analysis on my 190E 2.6 and did emission related research early in my engineering career. Also search for "duty cycle" threads.
The fuel mixture is very rich... like it's running at WOT enrichment all the time... could be something as simple as the throttle position switch stuck at the WOT position.