vertrx
NAXJA Forum User
- Location
- South Carolina
2001 XJ, motor recently replaced about 9 months ago with a used motor from another 2001 Had about 140,000 on it.
That said, running fine, but now have issues. Its giving codes 0300, 0304,0306, running real rough and interestingly there's white smoke coming out the tailpipe! That may be a red herring though as the coolant is fine, oil has no coolant in it, but I think the motor has that head with the issues.
I've changed plugs with NGK's, and fuel injectors. Cooling system new parts. But the catalytic converters are original, not replaced, so where do i start?
Could it be the catalytic converter? Vacuum leak? Coils? The weird thing is the white smoke since I don't see that come up in a search on those codes...
That said, running fine, but now have issues. Its giving codes 0300, 0304,0306, running real rough and interestingly there's white smoke coming out the tailpipe! That may be a red herring though as the coolant is fine, oil has no coolant in it, but I think the motor has that head with the issues.
I've changed plugs with NGK's, and fuel injectors. Cooling system new parts. But the catalytic converters are original, not replaced, so where do i start?
Could it be the catalytic converter? Vacuum leak? Coils? The weird thing is the white smoke since I don't see that come up in a search on those codes...