Stuck!

[Xendrea Jasper]

I have a 97` XJ with 120K on it. About a year ago the check engine light came on, had it tested. O2 sensor #1 was bad. I didn't notice any change in driveabilty or performance, so why spend $80 for a new one. Almost a month ago my XJ started sputtering and backfireing around 25MPH. It acted like a garden hose when you first turn on the water. It only does it once, you can drive until you run out of gas and not worry about it again until you start it again. So I replaced both O2's and reset the codes. Didn't help, check engine light came back with all the same symptoms. Since then I have replaced my catalytic converter and muffler, checked over my ignition system: cap, rotor, plugs, wires, everything's fine. What else could cause it to do this? Is my ECU STUCK in "limp home mode"?

[vividd]

have you disconected the battery to reset puter ?

[Xendrea Jasper]

Yes, I've disconected the battery several times and the sputtering is still there. It doesn't allways do it right away. I'll get 2 blocks from my house and "chitty chitty bang bang". After that it runs normal. After I disconect the battery, the "check engine" light will come on a day or two later... Pull the codes and both O2 sensors say voltage too high or voltage too low. Could it be fuel related?

[Cam7]

what are the code numbers?

[[Fe]weapon]

sounds like the throttle position sensor

[Xendrea Jasper]

Would the throttle position sensor send a code? It is a sensor that sends a signal back to the puter. I would like to think it has it's own code, but I could be wrong. I don't remember what the code numbers are but they were related to the O2 sensors. I reset the codes 3 days ago and it's still sputtering, but I can't get the "check engine" light to come on. Please don't tell me to try a new "check engine" light bulb. I really hate the thought of taking my XJ to the dealership.

[[Fe]weapon]

Not sure if it will give a specific code but the voltage can be measured with the diagnostic computer
it could be condensation inside the tps in which case is would be hard as hell to diagnose
if you could get another one to try instead of buying it you could rule it out that way
if you cant do it yourself you need to find a mechanic that will take the time and not just rely on codes

another possibility is a plugged fuel filter
thats a cheap part to replace and you should probably do it anyway if you dont know when it was replaced last

hope this helps

[Xendrea Jasper]

I think it's the fuel filter too. After learning that the filter and pump come as an assembly located inside the fuel tank, I doubt the filter has ever been changed. I'll get to ya next week when my tank is closer to empty.

[Cam7]

Codes are a Starting Point in the Diagnostic Process!

[Xendrea Jasper]

Ok... Today the "check engine" light finaly came on. I cycled the key three times and the codes are as follows: 12, 45, 11, 55. If anyone can tell me what this means I'll send them a 6' blonde (gender of your choice).

[Dale Aeppli]

Originally Posted by Xendrea Jasper

Ok... Today the "check engine" light finaly came on. I cycled the key three times and the codes are as follows: 12, 45, 11, 55. If anyone can tell me what this means I'll send them a 6' blonde (gender of your choice).

HI, HAVE YOU CHECK THE WIRES ON THE OXYGEN SENSORS 12 IS BATTERY HAS BEEN DISCONNECTED RECENTLY 11 CAMSHAFT POSITION SENSOR NO SIGNAL THERE IS NO 45 55 END OF CODES ON THE OLDER JEEPS WITH CARBS. 45 PRETAINED TO OXYGEN SENSOR DALE [email protected]

[IdahoJeeper]

You owe dale a 6' blonde...!

[Xendrea Jasper]

I'll send him one as long as he promises not to YELL at it. Thanx Dale... I don't care what Idaho says about you... YOU ROCK!

[Dale Aeppli]

Originally Posted by Xendrea Jasper

I'll send him one as long as he promises not to YELL at it. Thanx Dale... I don't care what Idaho says about you... YOU ROCK!

HI DON'T NEED THE 6FT. BLONDE JUST TELL ME WHAT IT TURNED OUT TO BE SO I CAN PUT ASIDE FOR SOMEONE ELSE WHO NEEDS HELP. DALE EMAIL ME AT [email protected]
i'm new at this computer thats why i ask them to email me can't send thru forum

[[Fe]weapon]

Originally Posted by Xendrea Jasper

I think it's the fuel filter too. After learning that the filter and pump come as an assembly located inside the fuel tank, I doubt the filter has ever been changed. I'll get to ya next week when my tank is closer to empty.

thats not the fuel filter bud thats a pickup filter for the pump to keep large chunks out of the pump. that you change IF you need to change the pump, its not a maintenance item
the fuel filter is on the frame rail on the drivers side about 6 to 12 inches from the tank, its a round canister about 4 inches long 2 inches in diameter with a metal bracket around it