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Drive Cycle for Emission test help

45055 Views 16 Replies 6 Participants Last post by  Noodles
So I replaced the MAF on the 01 ML430, and have to get ready for the Smog test here in Ca.
Running it through the code reader, in the I/M readiness, 3 are still not ready yet: EVAP, Sec Air and EGR Sys. If more than one is not ready it wont pass. This is my second week driving it to work and back, its 16+ Mile commute and 20-60min drive.
Can anyone provide any advice on having the EVAP, Sec Air and EGR Sys sensors set?


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Well I had a gas cap go bad two days ago. The light came on and I read the code as small evap leak.

I was past emissions date by 5 days and they are looking to write tickets here for expired cars so I got the new cap and cleared the codes.

Of course the tank was full, but I followed all the guidelines and kept it within
50mph, and the readiness for Evap never completed, but they passed me and I got a new sticker and renewed registration.

I was able to accomplish setting everything within 18 miles and about 45 minutes, but I had to be methodical about it. It turns out like other states there is some forgiveness about how many and which items have to be set to a ready status, but I passed.
The place doing the testing did not know exactly the numbers, but admitted he has seen them pass in Wisconsin with more than to items that did not have a ready status.
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