P0304 Code & ETC Warning Light
JK Enthusiast
Joined: Sep 2009
Posts: 337
Likes: 0
From: Dallas, TX
Ok, further update. I just topped off my oil with one qt. I am starting to do this in between my 3k oil changes because it tends to burn about 1 qt. per 1k miles.
Anyway, about 15 minutes later the CEL turned off and it stays off while the Jeep is turned on with the motor running. However, if the key is in the 'on' position with just the electronics running, the CEL and ETC lights are on. As soon as I turn over the engine, they shut off.
Any thoughts?
Anyway, about 15 minutes later the CEL turned off and it stays off while the Jeep is turned on with the motor running. However, if the key is in the 'on' position with just the electronics running, the CEL and ETC lights are on. As soon as I turn over the engine, they shut off.
Any thoughts?
Thread Starter
JK Freak
Joined: Nov 2011
Posts: 718
Likes: 1
From: Rhode Island
I just had my CEL come on. It stayed on for several days. I would note I've had the gas overfill problem on and off for a while. (Mine was born one month after the cut off to get it fixed under lifetime warranty, but I'm about to try anyway, but I digress) Well the tech at AutoZone checked with his meter and found a code for the evap system leak. Well I chalked it up to the stated overfill problem, well I noticed I was also low on oil. I put in one quart, drove to work came home; CEL still on. Checked oil level, still one qt low. Put in second qt, and abra cadabra!!! CEL is now off. I'm confused.
Thread Starter
JK Freak
Joined: Nov 2011
Posts: 718
Likes: 1
From: Rhode Island
I'll have to check that on mine. I haven't really been paying attention to it.