Ok, I get this cel on warm days over 70, and 4 out of 5 times I hae had a passenger. It comes on while driving and goes off when I turn the car off. The car doesnt go into limp mode b/c I still have vtec. But I cant check it because when I shut my car off, bridge the connector, and turn the ignition to acc, the cel is gone! Can i check it with the car running? Before I had a cel that would reset itself and it was a bad knock sensor, or a KS wiring problem. I checked my connections and coated them with 3m insulation, and I thought it was fixed. But that code would let me check it. Could it be like a loose wire which triggers the cel, but the connection is sufficent enough to fix itself. I dont have my ecu cover on so before I thought it was something with the passengers feet and the ecu, but the last time it came on there was no passenger. I didnt know a cel could reset itself w/o pulling the ecu fuse or battery cable. Any Ideas??

 

check the code while the car is running.

 

it could be a misfire or fuel supply code which will reset itself when the car is turned off.

 

yea, should be some samll stuff. or else it wont reset it itself.

 

it cant be misfiring or fuel delivery...maybe a sensor is loose...Did you check your intake? maybe that's the case...

 

Thanks all for your replies. So I can check the code while its runnin? Thats good to know. My intake is AEM CAI I will check everything connecting to it tonight, the problem is it only hapens every week or so, it's driving me nuts though. Any other ideas?