Root Moose
NAXJA Forum User
- Location
- ON, Canada
2001 XJ
I had a slow start condition and then changed out the battery (unrelated) at which point it started to throw misfire codes (cyl 3,4,5,6 varies between code clearing - typically 3 and 6 for certain).
Changed the plugs (OEM spec and gap), same thing.
Changed the CPS, codes went away but still slow start and seems to be getting worse.
Fuel pump? Coil rail?
Only fuel related symptom I can see is that it won't start from cold till the fuel gauge fully registers whatever fuel level is in the tank. Fuel pump or red herring?
Changing the coil rail is easy enough but a bit of money. Changing the pump is a PITA and I'd rather not do it if I can avoid it (I'm spinning the wrenches).
I was thinking about being pro-active and changing out the injectors for some new balanced ones. Are the injectors a possible source for this problem? That might bump up the priority on that mod.
TIA
I had a slow start condition and then changed out the battery (unrelated) at which point it started to throw misfire codes (cyl 3,4,5,6 varies between code clearing - typically 3 and 6 for certain).
Changed the plugs (OEM spec and gap), same thing.
Changed the CPS, codes went away but still slow start and seems to be getting worse.
Fuel pump? Coil rail?
Only fuel related symptom I can see is that it won't start from cold till the fuel gauge fully registers whatever fuel level is in the tank. Fuel pump or red herring?
Changing the coil rail is easy enough but a bit of money. Changing the pump is a PITA and I'd rather not do it if I can avoid it (I'm spinning the wrenches).
I was thinking about being pro-active and changing out the injectors for some new balanced ones. Are the injectors a possible source for this problem? That might bump up the priority on that mod.
TIA