|05-16-2013 10:33 AM|
Unfortunately I've already replaced my O2 sensor and I've cleared the code several times my personal handheld ODBI. I'll give a call to my local stealership and see if they can take a quick care of it. Thanks
|05-15-2013 08:49 AM|
|CMike357||I had my light come on and could not clear it. Went to the Jeep dealership, and they told me that in 1991 they didn't know how long the O2 sensor would last and need replacing, so the light comes on after a certain mileage. They did not have an OBDI tool so had to go to another dealership that had one and they cleared the code and didn't charge me to do it.|
|05-14-2013 07:12 PM|
UPDATE: 2 Years Later
-replaced the O2 sensor
-disconnected the battery
-cycled the key on and off 7 times then 8 times
-plugged in the ODB computer and cleared it a couple of times.
...and nothing has worked. The red "maintenance required" light still glows as bright as it did 2 years ago.
I think I'm going to just pull the little light bulb, when I have the time.
I appreciate the suggestions everybody.
|10-25-2011 01:58 PM|
|rjeepr||Yeah there is one connector and the sensor screws in. It might be a bit tough to get out. And advance auto will let u use there scan tool to clear the code free, but if you just cycle the engine on and off I think 8 times the computer should reset itself|
|10-25-2011 12:00 PM|
|10-25-2011 11:22 AM|
Thanks RjeepR, it's worth a try. I'll pick up one from the auto parts store.
It looks like I just screw in the sensor into the exhaust pipe & connect it to the wiring harness, right?
|10-25-2011 03:28 AM|
|rjeepr||I've had the same problem with no ac in my jeep but get ac relay code. Pretty sure I replaced the o2 sensor a d it was good. And if its the right problem. After you replace the sensor start and shut off the jeep 7 or 8 times and the light will go out|
|10-24-2011 06:55 PM|
NAVYCHIEF- I've had the battery disconnected when I replaced the skid plate so I know that doesn't reset things.
Does anyone know anything about the "Special Tool" GaryK wrote about?? I'd like to buy the tool and reset things myself, but I probably need to know the name of the tool or what exactly it resets. Wouldn't the computer be reset?
Thanks for the help.
|10-24-2011 05:51 PM|
|10-24-2011 04:48 PM|
|Garyk||ON 90 and earlier models there was a maintenance timer that came on at 82,500 miles, this could be disconnected. On 91 later the timer had to be reset with a "special tool" that a dealer has or many parts stores|
|10-24-2011 04:28 PM|
|NAVYCHIEF||try disconnecting the battery for 15-20 minutes then reconnect. this should reset the ecm so it can "learn" the inputs.|
|10-24-2011 01:57 PM|
|10-24-2011 12:58 PM|
Thanks Kik & NavyChief.
Ignoring the warning light might mean ignoring a potentially damaging situation so I'm not enthusiastic about doing that. Could it possibly be a blown fuse?
If it was the Oxygen sensor why wouldn't that code be the one that comes up?
The previous owner replaced the motor with a Jeep dealership crate motor something like 40K miles ago. Could this have something to do with it?
|10-23-2011 08:18 PM|
|10-23-2011 07:59 PM|
|10-23-2011 03:51 PM|
|NAVYCHIEF||your light is working correctly. it is sensing that the relay is inop. with no A/C, this code (033) should be ignored.|
|10-23-2011 10:26 AM|
maintenance required- A/C clutch relay.
I just bought my 1991 YJ & it has a warning light on (maintenance required). So I hooked it to my auto code scanner & the problem is... A/C Clutch Relay 033 circuit.
My YJ has never had A/C so I don't know what to do. I've already tried to reset the computer but the warning light always comes back on.
Does anyone know how to correct this problem?
I have a 1991 Wrangler Islander
4.0 liter engine
5 spd Manual transmission
No A/C (non air conditioned)