I went to get an inspection and found that I had codes: P0446, P0441, P0440 - Emission control system.
The funny thing is that I did not have a CEL. As a matter of fact, the CEL doesn't shine at all even at start up.
Has anyone heard of that problem?
Later in the week, I get more codes but no CEL. P0300, P0304, P0305, P0306, P1150. Then the rough idle starts and I am not able to get out of low gears.
A year ago, I put new injectors on 1,3,6. A year ago, I did an extensive clean on the IACV with carb cleaner and Qtips.
Items I have done now:
1. Cleaned MAF.
2. Spray throttle body in place and spray down into the IACV.
3. Switch coil from 6 and 2 to try to move the code.
4. Buy new plugs for 2,4,6 to see if this improves situation at all.
I drive it out and around and immediately have a stuffy, clogged feel to the drive. at a half mile, I get a lot of muffler, exhaust hissing. I pull over and find my cat glowing like lava. after letting it cool, I limp home. I now have very loud exhaust hissing noise.
In the trouble shooting, I kept clearing the codes and pulling new ones to check. One code mentions I might be running lean (?? lean?). I pull the throttle body and check it. I pull the IACV and find it is still very clean. All my hoses are hooked up. I swap my coil from 6 to 5. I pull codes after running for 10 minutes and find that my code moved from 5 to 6. I now have these:
P0300, P0306, P0301, P1150.
Need advice on the above. Also:
1. Did I wreck my exhaust manifolds?
2. How do I check for vacuum leaks?
3. Has anyone ever run down the EVAP system?
4. Could I have crossed a hose connect last year and have the wrong vacuum hose connected? (My set up on the EVAP and VSV matches my book diagram - Haynes)
5. Does any one have any information on what the air fuel sensor is, how you check it, and how can I look up more information on it? (This search doesn't let you hit air fuel sensor because 'air' is too small a word.)
At this point, my RX300 is not driveable. I think I am needing to have it towed. Looking for advice. Thanks.
BTW, I have read a ton of good entries on this site. I fixed my RX well last year with this site alone. You guys rock. Thanks.