sobo

305 tpi. High miles
Here's the readings.

HC (ppm)
max 110 meas. 160


no (ppm)
max 772 meas. 938

What do you guys think?
I should also say that I did not drive it on the weekend and took it in this morning for smog after driving it a short time. Is it possible I didn't heat the cat up enough?



Thanks for the help

SupplySgt.

it is possible that you didn't heat it up enough. however I'm not sure if it would make that huge of a difference. I would check everything from the intake system to the fuel system to the sensors if you're getting high readings in everything. If it was one or the other I could narrow it down for you but it's not.

sobo

I need to point out that all of my other readings were within limits. These readings that failed are at 15mph.

Gtpguy

Have you done a full tune up yet? Cap, rotor, wires, plugs, o2? Are there any SES lights?

Tex95Z

Could use a little more info about your car, mods and such.