gm4x4lover
NAXJA Forum User
- Location
- colorado springs
i have a 98 xj in which i had to temporaly delet the catalitic converter due to 4wheeling accident. when that happened it ruined the downstream o2. I since fixed the cat and replaced both the up and downstream o2's with new bosch parts. It now runs very poor and throws 4 codes - high volts up stream, high volts down stream, upstream heater failure and downstream heater failure. I talked with the local jeep dealer and the said the ASD ( automatic shut down) relay is linked to the heaters so i replaced that and the same problem exists. Now if i clear the code with my snap on scaner the codes will stay off for a couple off days and will run great but then the codes will come back and the xj will run bad again. The jeep dealer is out of options with out looking at it ad i would just rather fix it myself. If you guys have any answers for me i would really appreciate it.