About a month ago I was driving along and experienced a check engine light in my 2000 Chevy Blazer. I used my own computer to check the problem and it came up as an "EVAP Purge Solenoid". I googled that and discovered that the solenoids get stuck sometimes and quite often unstick themselves. So I wiped the computer and the light never came back on.
Three weeks later I went for an inspection and discovered that a whole bunch of the on board OBD2 sensors were incomplete. EGR, Catalytic Converters, Evap system, and some other one which I forgot. O2 monitors are working.
After the initial wipe, I put 250 miles on the car. Then I wiped it again and since then I've put on another 350. I've also done at least a dozen different drive cycles recommended to engage the monitors.(Most involving letting the car idol, accelerating to 55 for a few minutes, then coasting to a halt without breaks).
At this point I dont know what else to do. I've taken it to a mechanic and he was just as stumped as I. Does anyone know what the problem could be? Or how I can get another two of these stupid monitors to respond(without more drive cycles)?
Three weeks later I went for an inspection and discovered that a whole bunch of the on board OBD2 sensors were incomplete. EGR, Catalytic Converters, Evap system, and some other one which I forgot. O2 monitors are working.
After the initial wipe, I put 250 miles on the car. Then I wiped it again and since then I've put on another 350. I've also done at least a dozen different drive cycles recommended to engage the monitors.(Most involving letting the car idol, accelerating to 55 for a few minutes, then coasting to a halt without breaks).
At this point I dont know what else to do. I've taken it to a mechanic and he was just as stumped as I. Does anyone know what the problem could be? Or how I can get another two of these stupid monitors to respond(without more drive cycles)?
Jan 27, 2011 at 8:20 PM
